title stringlengths 3 252 | abstract stringlengths 13 2.77k | text stringlengths 187 3k |
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Exclusive Hadronic B Decays to Charm and Charmonium Final States | We have fully reconstructed decays of both B0 and B- Mesons into final states containing either D, D*, D**, Psi, Psi', or Chi_{c1} mesons. This allows us to obtain new results on many physics topics including branching ratios, tests of the factorization hypothesis, color suppression, resonant substructure, and the B- -... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Exclusive Hadronic B Decays to Charm and Charmonium Final States ### Response: We have fully reconstructed decays of both B0 and B- Mesons into final states containing either D, D*, D**, Psi, Psi'... |
Observation of a New Charmed Strange Meson | Using the CLEO-II detector, we have obtained evidence for a new meson decaying to $D^0 K^+$. Its mass is $2573.2^{+1.7}_{-1.6}\pm 0.8\pm 0.5$ {}~MeV/$c^2$ and its width is $16^{+5}_{-4}\pm 3$~MeV/$c^2$. Although we do not establish its spin and parity, the new meson is consistent with predictions for an $L=1$, $S=1$, $... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Observation of a New Charmed Strange Meson ### Response: Using the CLEO-II detector, we have obtained evidence for a new meson decaying to $D^0 K^+$. Its mass is $2573.2^{+1.7}_{-1.6}\pm 0.8\pm 0.... |
Study of the Decay $Λ_c \to Λl^+ ν_{l} | Using the CLEO II detector at CESR, we observe 500 $\Lambda l^+$ pairs consistent with the semileptonic decay $\Lambda_c \to \Lambda l^+ \nu_{l}$. We measure $\sigma (e^+ e^- \to \Lambda_c X) \dot {cal B}(\Lambda_c^+ \to \Lambda l \nu_{l}) =4.77 \pm 0.25 \pm 0.66 $pb. Combining with the charm semileptonic width and the... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Study of the Decay $Λ_c \to Λl^+ ν_{l} ### Response: Using the CLEO II detector at CESR, we observe 500 $\Lambda l^+$ pairs consistent with the semileptonic decay $\Lambda_c \to \Lambda l^+ \nu_{l... |
Precision Measurement of the $D_s^{*+}- D_s^+$ Mass Difference | We have measured the vector-pseudoscalar mass splitting $M(D_s^{*+})-M(D_s^+) = 144.22\pm 0.47\pm 0.37 MeV$, significantly more precise than the previous world average. We minimize the systematic errors by also measuring the vector-pseudoscalar mass difference $M(D^{*0})-M(D^0)$ using the radiative decay $D^{*0}\righta... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Precision Measurement of the $D_s^{*+}- D_s^+$ Mass Difference ### Response: We have measured the vector-pseudoscalar mass splitting $M(D_s^{*+})-M(D_s^+) = 144.22\pm 0.47\pm 0.37 MeV$, significan... |
A Measurement of ${\cal B}(D_s \to ϕl^+ ν)/{cal B}(D_s\to ϕπ^+)$ | Using the CLEO~II detector at CESR, we have measured the ratio of branching fractions ${\cal B}(D_s^+ \to \phi e^+ \nu)/{\cal B}(D_s^+ \to \phi\pi^+) = 0.54\pm 0.05\pm 0.04$. We use this measurement to obtain a model dependent estimate of ${\cal B}(D_s^+ \to \phi \pi^+)$. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Measurement of ${\cal B}(D_s \to ϕl^+ ν)/{cal B}(D_s\to ϕπ^+)$ ### Response: Using the CLEO~II detector at CESR, we have measured the ratio of branching fractions ${\cal B}(D_s^+ \to \phi e^+ \n... |
Measurement of Cabibbo Suppressed Decays of the $τ$ Lepton | Branching ratios for the dominant Cabibbo-suppressed decays of the $\tau$ lepton have been measured by CLEO~II in $e^+ e^-$ annihilation at CESR ($\sqrt{s} \sim 10.6$~GeV) using kaons with momenta below $0.7\ \rm GeV/c$. The inclusive branching ratio into one charged kaon is $(1.60 \pm 0.12 \pm 0.19)\%$. For the exclus... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of Cabibbo Suppressed Decays of the $τ$ Lepton ### Response: Branching ratios for the dominant Cabibbo-suppressed decays of the $\tau$ lepton have been measured by CLEO~II in $e^+ e^-$... |
Production and Decay of D_1(2420)^0 and D_2^*(2460)^0 | We have investigated $D^{+}\pi^{-}$ and $D^{*+}\pi^{-}$ final states and observed the two established $L=1$ charmed mesons, the $D_1(2420)^0$ with mass $2421^{+1+2}_{-2-2}$ MeV/c$^{2}$ and width $20^{+6+3}_{-5-3}$ MeV/c$^{2}$ and the $D_2^*(2460)^0$ with mass $2465 \pm 3 \pm 3$ MeV/c$^{2}$ and width $28^{+8+6}_{-7-6}$ ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Production and Decay of D_1(2420)^0 and D_2^*(2460)^0 ### Response: We have investigated $D^{+}\pi^{-}$ and $D^{*+}\pi^{-}$ final states and observed the two established $L=1$ charmed mesons, the ... |
Two-Photon Production of Charged Pion and Kaon Pairs | A measurement of the cross section for the combined two-photon production of charged pion and kaon pairs is performed using 1.2~$\rm fb^{-1}$ of data collected by the CLEO~II detector at the Cornell Electron Storage Ring. The cross section is measured at invariant masses of the two-photon system between 1.5 and 5.0 GeV... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Two-Photon Production of Charged Pion and Kaon Pairs ### Response: A measurement of the cross section for the combined two-photon production of charged pion and kaon pairs is performed using 1.2~$... |
Measurement of the Branching Fraction for D^+ \to K^- π^+ π^+ | Using the CLEO-II detector at CESR we have measured the ratio of branching fractions, ${\cal B}(D^+\rightarrow K^- \pi^+ \pi^+)/{\cal B}(D^0 \rightarrow K^-\pi^+) = 2.35 \pm 0.16 \pm 0.16$. Our recent measurement of ${\cal B}(D^0 \rightarrow K^-\pi^+)$ then gives ${\cal B}(D^+\rightarrow K^- \pi^+ \pi^+) = (9.3 \pm 0.6... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the Branching Fraction for D^+ \to K^- π^+ π^+ ### Response: Using the CLEO-II detector at CESR we have measured the ratio of branching fractions, ${\cal B}(D^+\rightarrow K^- \pi^+... |
Precise Measurement of the Left-Right Cross Section Asymmetry in $Z$ Boson Production by $\ee$ Collisions | We present a precise measurement of the left-right cross section asymmetry ($A_{LR}$) for $Z$ boson production by $\ee$ collisions. The measurement was performed at a center-of-mass energy of 91.26 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC elect... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Precise Measurement of the Left-Right Cross Section Asymmetry in $Z$ Boson Production by $\ee$ Collisions ### Response: We present a precise measurement of the left-right cross section asymmetry (... |
Measurement of the Spin-Dependent Structure Function $g_1(x)$ of the Proton | We have measured the spin-dependent structure function $g_1^p$ of the proton in deep inelastic scattering of polarized muons off polarized protons, in the kinematic range $0.003<x<0.7$ and $1\,\mbox{GeV}^2<Q^2<60\,\mbox{GeV}^2$. Its first moment, $\int_0^1 g_1^p(x) dx $, is found to be $0.136 \pm 0.011\,(\mbox{stat.})\... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the Spin-Dependent Structure Function $g_1(x)$ of the Proton ### Response: We have measured the spin-dependent structure function $g_1^p$ of the proton in deep inelastic scattering ... |
A Measurement of the Branching Fraction ${\cal B} τ^+ \to h^- π^0 ν_τ$ | Using data from the CLEO II detector at CESR, we measure ${\cal B}(\tau^\pm\rightarrow h^\pm\pi^0\nu_\tau)$ where $h^\pm$ refers to either $\pi^\pm$ or $K^\pm$. We use three different methods to measure this branching fraction. The combined result is ${\cal B}(\tau^\pm\rightarrow h^\pm\pi^0\nu_\tau) = 0.2587 \pm 0.0012... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Measurement of the Branching Fraction ${\cal B} τ^+ \to h^- π^0 ν_τ$ ### Response: Using data from the CLEO II detector at CESR, we measure ${\cal B}(\tau^\pm\rightarrow h^\pm\pi^0\nu_\tau)$ whe... |
A Review of Hadronic and Rare B Decays | We review recent experimental results on B meson decays. These include measurements of the inclusive production of charmed and non-charmed mesons and baryons, the reconstruction of a large number of exclusive hadronic final states with charmed mesons, the search for exclusive hadronic final states without charmed meson... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Review of Hadronic and Rare B Decays ### Response: We review recent experimental results on B meson decays. These include measurements of the inclusive production of charmed and non-charmed meso... |
New Upper Limit for the Branching Ratio of the Omega- to Xi- gamma Radiative Decay | We have searched for the rare hyperon radiative decay Omega- to Xi- gamma, using the Fermilab Proton Center 375 GeV/c charged hyperon beam. Our measurement of the Omega- beam fraction at 13.6 m from production is (4.8 +_ 0.4)10**(-5). No signal was found and we determine a new upper limit of (4.6 x 10**-4) at 90% CL fo... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: New Upper Limit for the Branching Ratio of the Omega- to Xi- gamma Radiative Decay ### Response: We have searched for the rare hyperon radiative decay Omega- to Xi- gamma, using the Fermilab Proto... |
Experimental momentum spectra of identified hadrons in jets and the predictions from LPHD + MLLA | Experimental data on the shape of hadronic momentum spectra are compared with theoretical predictions in the context of calculations in the Modified Leading Log Approximation (MLLA), under the assumption of Local Parton Hadron Duality (LPHD). Considered are experimental measurements at $e^+e^-$-colliders of $\xi_p^*$, ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Experimental momentum spectra of identified hadrons in jets and the predictions from LPHD + MLLA ### Response: Experimental data on the shape of hadronic momentum spectra are compared with theoret... |
An optimal method of moments to measure the charge asymmetry at the $Z^0$ | Parity violation at LEP or SLC can be measured through the charge asymmetry. An optimal method of moments is developed here to measure this asymmetry, as well as similar asymmetries. This method is equivalent to the likelihood fit. It is simpler in use, as it gives analytical formulas for both the asymmetry and its sta... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: An optimal method of moments to measure the charge asymmetry at the $Z^0$ ### Response: Parity violation at LEP or SLC can be measured through the charge asymmetry. An optimal method of moments is... |
Observation of Anisotropic Event Shapes and Transverse Flow in Au+Au Collisions at AGS Energy | Event shapes for Au + Au collisions at 11.4 GeV/c per nucleon were studied over nearly the full solid angle with the E877 apparatus. The analysis was performed by Fourier expansion of azimuthal distributions of the transverse energy (E_T) measured in different pseudorapidity intervals. For semicentral collisions a pron... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Observation of Anisotropic Event Shapes and Transverse Flow in Au+Au Collisions at AGS Energy ### Response: Event shapes for Au + Au collisions at 11.4 GeV/c per nucleon were studied over nearly t... |
Measurement of the Charged Multiplicity of $Z \rightarrow b \overline{b}$ Events | Using an impact parameter tag to select an enriched sample of $Z \rightarrow b \overline{b}$ events, we have measured the difference between the average charged multiplicity of $Z \rightarrow b \overline{b}$ and $Z^0 \rightarrow hadrons$ to be $\overline{n}_{b} - \overline{n}_{had} = 2.24\pm 0.30(\rm{stat.}) \pm 0.33(\... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the Charged Multiplicity of $Z \rightarrow b \overline{b}$ Events ### Response: Using an impact parameter tag to select an enriched sample of $Z \rightarrow b \overline{b}$ events, ... |
Evidence for Top Quark Production in $\bar{p}p$ Collisions at $\sqrt{s}=1.8$ TeV | We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of $\bar{p}p$ collisions at $\sqrt{s}$= 1.8 TeV with an integrated luminosity of 19.3~pb$^{-1}$. We find 12 events consistent with either two $W$ bosons, or a $W$ boson and at least one $b$ jet. The probability that the mea... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Evidence for Top Quark Production in $\bar{p}p$ Collisions at $\sqrt{s}=1.8$ TeV ### Response: We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of $... |
Measurement of alpha-s from energy-energy correlations at the Z0 resonance | We have determined the strong coupling alpha-s from a comprehensive study of energy-energy correlations (EEC) and their asymmetry (AEEC) in hadronic decays of Z0 bosons collected by the SLD experiment at SLAC. The data were compared with all four available predictions of QCD calculated up to O(alpha-s**2) in perturbati... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of alpha-s from energy-energy correlations at the Z0 resonance ### Response: We have determined the strong coupling alpha-s from a comprehensive study of energy-energy correlations (EE... |
Cumulant to Factorial Moment Ratio and Multiplicity Data | The ratio of cumulant to factorial moments of experimental multiplicity distributions has been calculated for $e^{+}e^{-}$ and $hh$ interactions in a wide range of energies. As a function of the rank it exhibits an initial steep decrease and a series of oscillations around zero. Those features cannot be reproduced by t... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Cumulant to Factorial Moment Ratio and Multiplicity Data ### Response: The ratio of cumulant to factorial moments of experimental multiplicity distributions has been calculated for $e^{+}e^{-}$ an... |
A Precise Measurement of the Weak Mixing Angle in Neutrino-Nucleon Scattering | We report a precise measurement of the weak mixing angle from the ratio of neutral current to charged current inclusive cross-sections in deep-inelastic neutrino-nucleon scattering. The data were gathered at the CCFR neutrino detector in the Fermilab quadrupole-triplet neutrino beam, with neutrino energies up to 600 Ge... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Precise Measurement of the Weak Mixing Angle in Neutrino-Nucleon Scattering ### Response: We report a precise measurement of the weak mixing angle from the ratio of neutral current to charged cu... |
Phase transition time delays in irradiated superheated superconducting granules | The time difference between a particle interaction in a Superheated Superconducting Granule (SSG) and the resulting phase transition signal has been explored. Detectors containing Zn and Sn SSG were irradiated with neutrons and protons to study the heating mechanism taking place in nuclear recoil and ionizing events. S... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Phase transition time delays in irradiated superheated superconducting granules ### Response: The time difference between a particle interaction in a Superheated Superconducting Granule (SSG) and ... |
Quasiparticle and phonon propagation in superheated superconducting granules after nuclear recoils | The propagation of the excess of quasiparticles and phonons produced by a nuclear recoil inside Sn and Zn superheated superconducting granules will be discussed. The decay towards equilibrium of the initial disturbance is assumed to be a thermal diffusion process described by a set of coupled heat flow equations for th... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Quasiparticle and phonon propagation in superheated superconducting granules after nuclear recoils ### Response: The propagation of the excess of quasiparticles and phonons produced by a nuclear r... |
Precise Determination of the Weak Mixing Angle from a measurement of ALR in e+e- -> Z0 | In the 1993 SLC/SLD run, the SLD recorded 50,000 $\z0$ events produced by the collision of longitudinally polarized electrons on unpolarized positrons at a center-of-mass energy of 91.26 GeV. The luminosity-weighted average polarization of the SLC electron beam was (63.0$\pm$1.1)\%. We measure the left-right cross-sect... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Precise Determination of the Weak Mixing Angle from a measurement of ALR in e+e- -> Z0 ### Response: In the 1993 SLC/SLD run, the SLD recorded 50,000 $\z0$ events produced by the collision of long... |
Polarization of Valence and Sea Quarks in the Proton | Analysis was performed of semi-inclusive and inclusive spin asymmetries determined from the polarized deep inelastic scattering by the Spin Muon Collaboration. Combined analysis of data for polarized deuterium and hydrogen targets allows for separate determination of spin carried by valence {\it u} and {\it d} quarks a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Polarization of Valence and Sea Quarks in the Proton ### Response: Analysis was performed of semi-inclusive and inclusive spin asymmetries determined from the polarized deep inelastic scattering b... |
LEP asymmetries and fits of the Standard Model | The lepton and quark asymmetries measured at LEP are presented. The results of the Standard Model fits to the electoweak data presented at this conference are given. The top mass obtained from the fit to the LEP data is $172^{+13+18}_{-14-20}$ GeV; it is $177^{+11+18}_{-11-19}$ when also the collider, $\nu$ and $A_{LR}... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: LEP asymmetries and fits of the Standard Model ### Response: The lepton and quark asymmetries measured at LEP are presented. The results of the Standard Model fits to the electoweak data presented... |
Average Multiplicities in Gluon and Quark Jets in Higher-Order Perturbative QCD | The ratio of average multiplicities in gluon and quark jets is shown to become noticeably smaller in higher-order QCD compared to its lowest order value what improves agreement with experiment.
QCD anomalous dimension has been calculated. It has been used to get energy dependence of mean multiplicities. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Average Multiplicities in Gluon and Quark Jets in Higher-Order Perturbative QCD ### Response: The ratio of average multiplicities in gluon and quark jets is shown to become noticeably smaller in h... |
A Neural Network for Locating the Primary Vertex in a Pixel Detector | Using simulated collider data for $p+p\rightarrow 2{\rm Jets}\ $ interactions in a 2-barrel pixel detector, a neural network is trained to construct the coordinate of the primary vertex to a high degree of accuracy. Three other estimates of this coordinate are also considered and compared to that of the neural network.... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Neural Network for Locating the Primary Vertex in a Pixel Detector ### Response: Using simulated collider data for $p+p\rightarrow 2{\rm Jets}\ $ interactions in a 2-barrel pixel detector, a neu... |
Semileptonic Branching Fraction of Charged and Neutral B Mesons | An examination of leptons in ${\Upsilon (4S)}$ events tagged by reconstructed $B$ decays yields semileptonic branching fractions of $b_-=(10.1 \pm 1.8\pm 1.4)\%$ for charged and $b_0=(10.9 \pm 0.7\pm 1.1)\%$ for neutral $B$ mesons. This is the first measurement for charged $B$. Assuming equality of the charged and neut... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Semileptonic Branching Fraction of Charged and Neutral B Mesons ### Response: An examination of leptons in ${\Upsilon (4S)}$ events tagged by reconstructed $B$ decays yields semileptonic branching... |
Measurement of the B -> D^* l nu Branching Fractions and |Vcb| | We study the exclusive semileptonic B meson decays B- -> D*0 l- nu and B0 -> D*+ l- nu using data collected with the CLEO II detector at CESR. We present measurements of the branching fractions B(B0 -> D*+ l-nu) = 0.5/f00* [4.49+/-0.32+/-0.39]% and B(B- -> D*0 l-nu) = 0.5/f+-*[5.13+/-0.54+/-0.64]%, where f00 and f+- ar... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the B -> D^* l nu Branching Fractions and |Vcb| ### Response: We study the exclusive semileptonic B meson decays B- -> D*0 l- nu and B0 -> D*+ l- nu using data collected with the CL... |
Multiple Scattering Error Propagation in Particle Track Reconstruction | Particle track reconstruction capabilities of the silicon tracking detector system have been studied. As the multiple Coulomb scattering (MCS) induces unavoidable uncertainties on the coordinate measurement, the corresponding error estimates and the associated correlations have been used to find the best track fit para... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Multiple Scattering Error Propagation in Particle Track Reconstruction ### Response: Particle track reconstruction capabilities of the silicon tracking detector system have been studied. As the mu... |
Determination of the Strange Quark Content of the Nucleon from a Next-to-Leading-Order QCD Analysis of Neutrino Charm Production | We present the first next-to-leading-order QCD analysis of neutrino charm production, using a sample of 6090 $\nu_\mu$- and $\bar\nu_\mu$-induced opposite-sign dimuon events observed in the CCFR detector at the Fermilab Tevatron. We find that the nucleon strange quark content is suppressed with respect to the non-stran... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Determination of the Strange Quark Content of the Nucleon from a Next-to-Leading-Order QCD Analysis of Neutrino Charm Production ### Response: We present the first next-to-leading-order QCD analys... |
Supersymmetry at the DiTevatron | We study the signals for supersymmetry at the Tevatron and DiTevatron ($\sqrt{s}=4\TeV$) in various well-motivated supersymmetric models. We consider the trilepton signature in the decay of pair-produced charginos and neutralinos, the missing energy signature in gluino and squark production, and the $b\bar b$ signal in... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Supersymmetry at the DiTevatron ### Response: We study the signals for supersymmetry at the Tevatron and DiTevatron ($\sqrt{s}=4\TeV$) in various well-motivated supersymmetric models. We consider ... |
A light stop and its consequences at the Tevatron and LEPII | An interesting prediction of a string-inspired {\em one-parameter} $SU(5)\times U(1)$ supergravity model, is the fact that the lightest member ($\tilde t_1$) of the top-squark doublet $(\tilde t_1,\tilde t_2)$, may be substantially lighter than the top quark. This sparticle ($\tilde t_1$) may be readily pair-produced a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A light stop and its consequences at the Tevatron and LEPII ### Response: An interesting prediction of a string-inspired {\em one-parameter} $SU(5)\times U(1)$ supergravity model, is the fact that... |
Deep Inelastic Electropion Production | This paper is devoted to a study of possible scaling laws, and their logarithmic corrections, occurring in deep inelastic electropion production. Both the exclusive and semi-exclusive processes are considered. Scaling laws, originally motivated from PCAC and current algebra considerations are examined, first in the fra... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Deep Inelastic Electropion Production ### Response: This paper is devoted to a study of possible scaling laws, and their logarithmic corrections, occurring in deep inelastic electropion production... |
Top-Quark Production and Flavor Physics | Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century. I will discuss aspects of the mass and angular dis... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Top-Quark Production and Flavor Physics ### Response: Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top ... |
Sensitivity Of Dark Matter Dectectors To Susy Dark Matter | The sensitivity of dark matter detectors to the lightest neutralino (${\tilde {Z}_1}$) is considered within the framework of supergravity grand unification with radiative breaking of SU(2)xU(1). The relic density of the ${\tilde {Z}_1}$ is constrained to obey $0.10 \leq \Omega_{\tilde {Z}_1}h^2 \leq 0.35$, consistent w... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Sensitivity Of Dark Matter Dectectors To Susy Dark Matter ### Response: The sensitivity of dark matter detectors to the lightest neutralino (${\tilde {Z}_1}$) is considered within the framework of... |
A Direct Test of Perturbative QCD at Small x | We show that recent data from HERA on the proton structure function $F_2$ at small $x$ and large $Q^2$ provide a direct confirmation of the double asymptotic scaling prediction of perturbative QCD. A linear rise of $\ln F_2$ with the scaling variable $\sigma$ is observed throughout the kinematic region probed at HERA, ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Direct Test of Perturbative QCD at Small x ### Response: We show that recent data from HERA on the proton structure function $F_2$ at small $x$ and large $Q^2$ provide a direct confirmation of t... |
Remarks on Koba-Nielsen-Olesen Scaling | It is shown that there is a second properly normalized KNO scaling function, $nP_n(n/\bar n)=\varphi(z)$, which has certain advantages in the analysis of KNO scaling. First, the $nP_n$ are not influenced by the statistical and systematic uncertainties of $\bar n$ hence $\varphi(z)$ provides more selective power than th... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Remarks on Koba-Nielsen-Olesen Scaling ### Response: It is shown that there is a second properly normalized KNO scaling function, $nP_n(n/\bar n)=\varphi(z)$, which has certain advantages in the a... |
CPT Tests in the Neutral Kaon System by FNAL E773 | The FNAL experiment E773 has measured the phases Phi_{+-} = (43.35 +- 0.70 +- 0.79) degree and Phi_{00}-Phi_{+-} = (0.67 +- 0.85 +- 1.1) degree of the CP violating parameters eta_{+-} and eta_{00} in the decay of neutral kaons into two charged or neutral pions. These preliminary results test CPT symmetry and show no ev... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: CPT Tests in the Neutral Kaon System by FNAL E773 ### Response: The FNAL experiment E773 has measured the phases Phi_{+-} = (43.35 +- 0.70 +- 0.79) degree and Phi_{00}-Phi_{+-} = (0.67 +- 0.85 +- ... |
Top Mass from Electroweak Measurements | The electroweak measurements made at LEP using 1989-1993 data are presented in preliminary form. The agreement with the Standard Model is satisfactory, and allows a combined fit to all available data for the masses of the top quark and standard Higgs boson. The fit yields M_t = 177 +11 -11 +18 -19 GeV/c2, where the sec... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Top Mass from Electroweak Measurements ### Response: The electroweak measurements made at LEP using 1989-1993 data are presented in preliminary form. The agreement with the Standard Model is satis... |
Unbiased Estimators for Correlation Measurements | Higher order correlation measurements involve multiple event averages which must run over unequal events to avoid statistical bias. We derive correction formulas for small event samples, where the bias is largest, and utilize the results to achieve savings in CPU time consumption for the star integral. Results from a s... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Unbiased Estimators for Correlation Measurements ### Response: Higher order correlation measurements involve multiple event averages which must run over unequal events to avoid statistical bias. W... |
Nuclear Broadening of Out-of-Plane Transverse Momentum in Di-Jet Production | Recently claimed \cite{dj1,dj2,FC} anomalous nuclear effects in di-jet production are analyzed in view of multiple interaction of projectile/ejectile partons in nuclear matter. We derive model--independent relations between A-dependence of the cross section and nuclear broadening of transverse momentum. Comparison with... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Nuclear Broadening of Out-of-Plane Transverse Momentum in Di-Jet Production ### Response: Recently claimed \cite{dj1,dj2,FC} anomalous nuclear effects in di-jet production are analyzed in view of ... |
Spin Asymmetry in Muon--Proton Deep Inelastic Scattering on a Transversely-Polarized Target | We measured the spin asymmetry in the scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The asymmetry was found to be compatible with zero in the kinematic range $0.006<x<0.6$, $1<Q^2<30\,~\mbox{GeV}^2$. {}From this result we derive the upper limits for the virtual photon--proton a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Spin Asymmetry in Muon--Proton Deep Inelastic Scattering on a Transversely-Polarized Target ### Response: We measured the spin asymmetry in the scattering of 100 GeV longitudinally-polarized muons... |
New Measurements of CP Violation Parameters as Tests of CPT in K Meson Decay | Using a technique which employs a pair of solid scintillator regenerators, the E773 collaboration has measured several CP violation parameters in K meson decay at Fermilab. We report new results for the phase of eta_+-, the K_L-K_S mass difference, the K_S lifetime, and the phase difference Arg(eta_00)-Arg(eta_+-) in K... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: New Measurements of CP Violation Parameters as Tests of CPT in K Meson Decay ### Response: Using a technique which employs a pair of solid scintillator regenerators, the E773 collaboration has mea... |
New Results from CLEO-II on Hadronic Decays of the Tau Lepton | Results on semi-hadronic decays of the $\tau$ lepton are presented, from studies of $e^+e^-$ annihilation data obtained at the Cornell Electron Storage Ring with the CLEO-II detector. Branching fractions have been measured for decays to two, three and four hadrons, namely $\tau^-\!\!\rightarrow\! \nu_\tau h^-\pi^0$, $\... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: New Results from CLEO-II on Hadronic Decays of the Tau Lepton ### Response: Results on semi-hadronic decays of the $\tau$ lepton are presented, from studies of $e^+e^-$ annihilation data obtained ... |
Probing Color Coherency Using High pT W Events at the TEVATRON | \D0 has used W --> e nu events associated with a high pT jet to probe for the effects of extended source color dipole radiation in W-jet rapidity correlations. We have also studied the low energy flow in these events and shown an enhancement between the jet and the beam directions, indicating the effects of color coher... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Probing Color Coherency Using High pT W Events at the TEVATRON ### Response: \D0 has used W --> e nu events associated with a high pT jet to probe for the effects of extended source color dipole r... |
Tevatron energy and luminosity upgrades beyond the Main Injector | The Fermilab Tevatron will be the world's highest energy hadron collider until the LHC is commissioned, it has the world's highest energy fixed target beams, and Fermilab will be the leading high energy physics laboratory in the US for the foreseeable future. Following the demise of the SSC, a number of possible upgrad... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Tevatron energy and luminosity upgrades beyond the Main Injector ### Response: The Fermilab Tevatron will be the world's highest energy hadron collider until the LHC is commissioned, it has the wo... |
Detecting Tau Neutrino Oscillations at PeV Energies | It is suggested that a large deep underocean (or ice) neutrino detector, given the presence of significant numbers of neutrinos in the PeV energy range as predicted by various models of Active Galactic Nuclei, can make unique measurements of the properties of neutrinos. It will be possible to observe the existence of t... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Detecting Tau Neutrino Oscillations at PeV Energies ### Response: It is suggested that a large deep underocean (or ice) neutrino detector, given the presence of significant numbers of neutrinos in... |
Measurement of the polarization of Lambda0 AntiLambda0, Sigma+ and Xi- produced in a Sigma- beam of 330 GeV/c | The polarization of Lambda0, AntiLambda0, Sigma+ and Xi- inclusively produced in Sigma- induced interactions at 330 GeV has been measured in the experiment WA89 at CERN. This is the first measurement of polarization of baryons produced by a hyperon beam. No polarization of AntiLambda is observed, as was also the case i... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the polarization of Lambda0 AntiLambda0, Sigma+ and Xi- produced in a Sigma- beam of 330 GeV/c ### Response: The polarization of Lambda0, AntiLambda0, Sigma+ and Xi- inclusively pro... |
B+ and B0 Mean Lifetime Measurements | We review $B^+$ and $B^0$ mean lifetime measurements, including direct measurements and determination of the lifetime ratio via measurements of the ratio of branching ratios. We present world averages. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: B+ and B0 Mean Lifetime Measurements ### Response: We review $B^+$ and $B^0$ mean lifetime measurements, including direct measurements and determination of the lifetime ratio via measurements of t... |
Determination of the branching ratios $Γ(K_L \to 3 π^0) / Γ(K_L \to π^+ π^- π^0)$ and $Γ(K_L \to 3 π^0) / Γ(K_L \to πe ν)$ | Improved branching ratios were measured for the $K_L \to 3 \pi^0 $ decay in a neutral beam at the CERN SPS with the NA31 detector: $\Gamma (K_L \to 3 \pi^0) / \Gamma (K_L \to \pi^+ \pi^- \pi^0) = 1.611 \pm 0.037$ and $\Gamma (K_L \to 3 \pi^0) / \Gamma (K_L \to \pi e \nu ) = 0.545 \pm 0.010$.
From the first number an up... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Determination of the branching ratios $Γ(K_L \to 3 π^0) / Γ(K_L \to π^+ π^- π^0)$ and $Γ(K_L \to 3 π^0) / Γ(K_L \to πe ν)$ ### Response: Improved branching ratios were measured for the $K_L \to 3 ... |
Measurement of the branching fraction for $Υ(1S) \to τ^+ τ^-$ | We have studied the leptonic decay of the $\Upsilon (1S)$ resonance into tau pairs using the CLEO II detector. A clean sample of tau pair events is identified via events containing two charged particles where exactly one of the particles is an identified electron. We find $B(\Upsilon(1S) \to \tau^+ \tau^-) = (2.61~\pm~... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the branching fraction for $Υ(1S) \to τ^+ τ^-$ ### Response: We have studied the leptonic decay of the $\Upsilon (1S)$ resonance into tau pairs using the CLEO II detector. A clean s... |
Search for top in D-Zero using the electron + jets channel with soft muon tagging | We present preliminary results for the search for the top quark in D-Zero in the electron + jets channel where one of the b quark jets is tagged by means of a soft muon, using 13.5 pb-1 of data. Standard model decay modes for the top quark are assumed. We present the resulting top cross section and error as a function ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for top in D-Zero using the electron + jets channel with soft muon tagging ### Response: We present preliminary results for the search for the top quark in D-Zero in the electron + jets cha... |
Search for the Top Quark: Results from the D-Zero Experiment | We review the search for the top quark conducted by the D-Zero collaboration using data from the Fermilab pbar-p collider. Based upon a preliminary analysis of an integrated luminosity of about 13.5 pb-1, we have searched for t-tbar production and decay in the experimental channels involving a pair of dileptons (electr... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for the Top Quark: Results from the D-Zero Experiment ### Response: We review the search for the top quark conducted by the D-Zero collaboration using data from the Fermilab pbar-p collider... |
Search for top in lepton + jets in D-Zero using a topological tag | We have searched for production of t-tbar pairs in p-pbar interactions at 1.8 TeV center-of-mass energy at the FNAL Tevatron collider. The search assumes standard model decay for top quark into W + b quark. We observe in e+jet and mu+jet final states a small, not statistically significant, excess above the background e... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for top in lepton + jets in D-Zero using a topological tag ### Response: We have searched for production of t-tbar pairs in p-pbar interactions at 1.8 TeV center-of-mass energy at the FNAL ... |
Search for First and Second Generation Leptoquarks at DØ | A search for first and second generation leptoquarks has been done with the DØ\ detector at Fermilab's pp collider with $\sqrt{s}=1.8$ TeV. 95\% C.L. mass limits for first generation scalar leptoquarks have been recently published. The number for the total integrated luminosity used in the first generation leptoquark a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for First and Second Generation Leptoquarks at DØ ### Response: A search for first and second generation leptoquarks has been done with the DØ\ detector at Fermilab's pp collider with $\sqr... |
Multiple Muon Measurements with MACRO | The MACRO experiment at Gran Sasso provides means for detailed studies of multiple coincident penetrating cosmic ray muons. In this paper we concentrate on the studies of the ultrahigh energy primary cosmic ray composition using muon bundle multiplicities, muon pair lateral and angular separation distributions. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Multiple Muon Measurements with MACRO ### Response: The MACRO experiment at Gran Sasso provides means for detailed studies of multiple coincident penetrating cosmic ray muons. In this paper we con... |
Search for Supersymmetric Wino and Zino States Using the D0 Detector | The status of a search for the pair production of the lightest chargino and second lightest neutralino states of the minimal supersymmetric model is presented. We have searched for four tri-lepton final states: eee, eemu, emumu, and mumumu, all with missing transverse energy. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for Supersymmetric Wino and Zino States Using the D0 Detector ### Response: The status of a search for the pair production of the lightest chargino and second lightest neutralino states of ... |
Search for Supersymmetry and Leptoquark States at FNAL | Searches have been made for first generation scalar and vector leptoquarks by the D0 collaboration and for second generation scalar leptoquarks by the CDF collaboration. Lower leptoquark mass limits were set. A search for squarks and gluinos, predicted by Supersymmetric models, was made by D0 in the three or more jets ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for Supersymmetry and Leptoquark States at FNAL ### Response: Searches have been made for first generation scalar and vector leptoquarks by the D0 collaboration and for second generation sc... |
New Shower Maximum Trigger for Electrons and Photons at CDF | For the 1994 Tevatron collider run, CDF has upgraded the electron and photon trigger hardware to make use of shower position and size information from the central shower maximum detector. For electrons, the upgrade has resulted in a 50\% reduction in backgrounds while retaining approximately 90\% of the signal. The new... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: New Shower Maximum Trigger for Electrons and Photons at CDF ### Response: For the 1994 Tevatron collider run, CDF has upgraded the electron and photon trigger hardware to make use of shower positi... |
Measurement of Correlated $b$ Quark Cross Sections at CDF | Using data collected during the 1992-93 collider run at Fermilab, CDF has made measurements of correlated $b$ quark cross section where one $b$ is detected via a muon from semileptonic decay and the second $b$ is detected with secondary vertex techniques. We report on measurements of the cross section as a function of ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of Correlated $b$ Quark Cross Sections at CDF ### Response: Using data collected during the 1992-93 collider run at Fermilab, CDF has made measurements of correlated $b$ quark cross se... |
Search for slowly moving magnetic monopoles | We report a search for slowly moving magnetic monopoles in the cosmic radiation with the first supermodule of the MACRO detector at Gran Sasso. The absence of candidates established an upper limit on the monopole flux of $5.6\times10^{-15}\mbox{cm}^{-2}\mbox{sr}^{-1}\mbox{s}^{-1}$ at 90\% confidence level for the veloc... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for slowly moving magnetic monopoles ### Response: We report a search for slowly moving magnetic monopoles in the cosmic radiation with the first supermodule of the MACRO detector at Gran S... |
Measurement of Correlated b quark Cross Sections at CDF | Using data collected during the 1992-1993 collider run at Fermilab, CDF has made measurements of correlated $b$ quark cross sections where one $b$ is detected from the lepton from semileptonic decay and the second $b$ is detected with secondary vertex techniques. We report on measurements of the cross section as a func... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of Correlated b quark Cross Sections at CDF ### Response: Using data collected during the 1992-1993 collider run at Fermilab, CDF has made measurements of correlated $b$ quark cross se... |
A Study of Events with Large Total Transverse Energy Produced in Proton-Antiproton Collisions at sqrt{s} = 1.8 Tev | Properties of events originating from proton--antiproton interactions in which the total transverse energy of the event exceeded 400 GeV are presented. Based on a data sample of 5.45 pb-1, the topology of these hard scattering events as well as preliminary results for the cross--section versus total transverse energy a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Study of Events with Large Total Transverse Energy Produced in Proton-Antiproton Collisions at sqrt{s} = 1.8 Tev ### Response: Properties of events originating from proton--antiproton interactio... |
Polarized Bhabha Scattering and a Precision Measurement of the Electron Neutral Current Couplings | We present the first measurement of the left-right asymmetry in Bhabha scattering with a polarized electron beam. The effective electron vector and axial vector couplings to the Z0 are extracted from a combined analysis of the polarized Bhabha scattering data and the left-right asymmetry previously published by this co... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Polarized Bhabha Scattering and a Precision Measurement of the Electron Neutral Current Couplings ### Response: We present the first measurement of the left-right asymmetry in Bhabha scattering wi... |
Search for Top with D0 Detector in Dilepton Channel | Preliminary results from a search for high mass ttbar quark pair production in ppbar collisions at sqrt(s)=1.8TeV with the D0 detector in the ee+jets, emu+jets, and mumu+jets decay channels are presented. No conclusive evidence for top quark production for an integrated luminosity of 13.5+/-1.6pb-1 is observed. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for Top with D0 Detector in Dilepton Channel ### Response: Preliminary results from a search for high mass ttbar quark pair production in ppbar collisions at sqrt(s)=1.8TeV with the D0 dete... |
VLPC Characterization for the Dzero Upgrade | We have studies the performance characteristics of approximately 4000 Visible Light Photon Counters(VLPC) over a range of operating temperatures and biases. We will describe the characterization procedure and present the measured gain, noise and the relative quantum efficiency for the devices. We will also discuss the ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: VLPC Characterization for the Dzero Upgrade ### Response: We have studies the performance characteristics of approximately 4000 Visible Light Photon Counters(VLPC) over a range of operating temper... |
Search for High Mass Top Quark Production in p anti-p Collisions at S**(1/2) = 1.8 TeV | We present new results on the search for the top quark in p anti-p collisions at S**(1/2) = 1.8 TeV with an integrated luminosity of 13.5 +- 1.6 pb**(-1). We have considered t anti-t production in the Standard Model using electron and muon dilepton decay channels (t anti-t -> e mu + jets, e e + jets, and mu mu + jets) ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for High Mass Top Quark Production in p anti-p Collisions at S**(1/2) = 1.8 TeV ### Response: We present new results on the search for the top quark in p anti-p collisions at S**(1/2) = 1.8... |
A Measurement of the $D^{*\pm}$ Cross Section in Two-Photon Processes | We have measured the inclusive $D^{*\pm}$ production cross section in a two-photon collision at the TRISTAN $e^+e^-$ collider. The mean $\sqrt{s}$ of the collider was 57.16 GeV and the integrated luminosity was 150 $pb^{-1}$. The differential cross section ($d\sigma(D^{*\pm})/dP_T$) was obtained in the $P_T$ range betw... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Measurement of the $D^{*\pm}$ Cross Section in Two-Photon Processes ### Response: We have measured the inclusive $D^{*\pm}$ production cross section in a two-photon collision at the TRISTAN $e^+... |
Detection of nuclear recoils in prototype dark matter detectors, made from Al, Sn and Zn Superheated Superconducting Granules | This work is part of an ongoing project to develop a Superheated Superconducting Granule (SSG) detector for cold dark matter and neutrinos. The response of SSG devices to nuclear recoils has been explored irradiating SSG detectors with a 70MeV neutron beam. The aim of the experiment was to test the sensitivity of Sn, A... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Detection of nuclear recoils in prototype dark matter detectors, made from Al, Sn and Zn Superheated Superconducting Granules ### Response: This work is part of an ongoing project to develop a Sup... |
Issues in the Determination of Parton Distribution Functions | The CTEQ and MRS parton distributions involve a substantial number (~30) of parameters that are fit to a large number (~900) of data. Typically, these groups produce fits that represent a good fit to the data, but there is no substantial attempt to determine the errors associated with the fits. Determination of errors ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Issues in the Determination of Parton Distribution Functions ### Response: The CTEQ and MRS parton distributions involve a substantial number (~30) of parameters that are fit to a large number (~9... |
Measurement of the $D^{*\pm}$ Cross Section using a Soft-Pion Analysis in Two-Photon Processes | The differential cross section of $d\sigma(e^+e^-\to e^+e^-D^{*\pm}X)/dP_T$ was measured using a soft-pion analysis of $D^{*\pm}\to \pi_s^\pm D^0(\bar{D^0})$ at TRISTAN. The average $\sqrt{s}$ was 58.1 GeV and the integrated luminosity used in this analysis was 198 pb$^{-1}$, respectively. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the $D^{*\pm}$ Cross Section using a Soft-Pion Analysis in Two-Photon Processes ### Response: The differential cross section of $d\sigma(e^+e^-\to e^+e^-D^{*\pm}X)/dP_T$ was measure... |
W-Jet Rapidity Correlations in $p\bar p$ Collisions at $\sqrt{s}=1.8$ TeV | D0 has used W -> e nu events produced in association with a high $p_T$ jet to examine the effects of strong radiative corrections. We have compared the primary jet pseudorapidity distribution, as a function of reconstructed W rapidity to leading order (LO) and next to leading order (NLO) QCD Monte Carlos, as well as a ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: W-Jet Rapidity Correlations in $p\bar p$ Collisions at $\sqrt{s}=1.8$ TeV ### Response: D0 has used W -> e nu events produced in association with a high $p_T$ jet to examine the effects of strong ... |
$K^0(\bar{K^0})$ Production in Two-Photon Processes at TRISTAN | We have carried out an inclusive measurement of $K^0(\bar{K^0})$ production in two-photon processes at TRISTAN. The mean $\sqrt{s}$ was 58 GeV and the integrated luminosity was 199 pb$^{-1}$. High-statistics $K_s$ samples were obtained under such conditions as no-, anti-electron, and remnant-jet tags. The remnant-jet t... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: $K^0(\bar{K^0})$ Production in Two-Photon Processes at TRISTAN ### Response: We have carried out an inclusive measurement of $K^0(\bar{K^0})$ production in two-photon processes at TRISTAN. The mea... |
On the Kinematic Reconstruction of Deep Inelastic Scattering at HERA: the $Σ$ Method | We review and compare the reconstruction methods of the inclusive deep inelastic scattering variables used at HERA. We introduce a new prescription, the $\Sigma$ method, which allows to measure the structure function of the proton $F_2(x,Q^2)$ in a large kinematic domain, and in particular in the low x-low$Q^2$ region,... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: On the Kinematic Reconstruction of Deep Inelastic Scattering at HERA: the $Σ$ Method ### Response: We review and compare the reconstruction methods of the inclusive deep inelastic scattering varia... |
New Tagging Method of B Flavor of Neutral B Meson in CP Violation Measurement in Asymmetric B-Factory Experiment | In CP violation measurements in asymmetric B-factory experiments, a determination of the B flavor of the neutral B mesons is necessary. A new method to this purpose using only three vectors of charged particles has been developed. This method (weighted charge method) does not require either lepton identification or cha... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: New Tagging Method of B Flavor of Neutral B Meson in CP Violation Measurement in Asymmetric B-Factory Experiment ### Response: In CP violation measurements in asymmetric B-factory experiments, a d... |
Observation of Target Electron Momentum Effects in Single-Arm Møller Polarimetry | In 1992, L.G. Levchuk noted that the asymmetries measured in Møller scattering polarimeters could be significantly affected by the intrinsic momenta of the target electrons. This effect is largest in devices with very small acceptance or very high resolution in laboratory scattering angle. We use a high resolution pola... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Observation of Target Electron Momentum Effects in Single-Arm Møller Polarimetry ### Response: In 1992, L.G. Levchuk noted that the asymmetries measured in Møller scattering polarimeters could be ... |
Test of Various Photocathodes | A test of various photocathodes was carried out. The tested materials were CsI, CsTe, their multi-layers and so on. The quantum efficiencies of the various materials were measured under a vacuum and/or after exposure to several kinds of gases. | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Test of Various Photocathodes ### Response: A test of various photocathodes was carried out. The tested materials were CsI, CsTe, their multi-layers and so on. The quantum efficiencies of the vari... |
Study of a Threshold Cherenkov Counter Based on Silica Aerogels with Low Refractive Indices | To identify $\pi^{\pm}$ and $K^{\pm}$ in the region of $1.0\sim 2.5$ GeV/c, a threshold Cherenkov counter equipped with silica aerogels has been investigated. Silica aerogels with a low refractive index of 1.013 have been successfully produced using a new technique. By making use of these aerogels as radiators, we have... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Study of a Threshold Cherenkov Counter Based on Silica Aerogels with Low Refractive Indices ### Response: To identify $\pi^{\pm}$ and $K^{\pm}$ in the region of $1.0\sim 2.5$ GeV/c, a threshold Ch... |
Kinematic Evidence for Top Quark Pair Production in $W+$ Multijet Events in $p \bar p$ Collisions at $\sqrt{s}$~=~1.8 TeV | We present a study of $W+$multijet events that compares the kinematics of the observed events with expectations from direct QCD $W+$jet production and from production and decay of top quark pairs. The data were collected in the 1992-93 run with the Collider Detector at Fermilab from 19.3 pb$^{-1}$ of proton-anti proton... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Kinematic Evidence for Top Quark Pair Production in $W+$ Multijet Events in $p \bar p$ Collisions at $\sqrt{s}$~=~1.8 TeV ### Response: We present a study of $W+$multijet events that compares the ... |
Feasibility Study of Single-Photon Counting Using a Fine-mesh Phototube for an Aerogel Readout | The fine-mesh phototube is one type of photodetector which can be used under a strong magnetic field. For an aerogel readout, the single-photon detection efficiency should be close to 100\% in order to identify particle species. We carried out a feasibility study of single-photon counting using fine-mesh phototubes, an... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Feasibility Study of Single-Photon Counting Using a Fine-mesh Phototube for an Aerogel Readout ### Response: The fine-mesh phototube is one type of photodetector which can be used under a strong m... |
Measurement of inclusive electron cross section in $γγ$ collisions at TRISTAN | We have studied open charm production in $\gamma \gamma$ collisions with the TOPAZ detector at the TRISTAN $e^{+}e^{-}$ collider. In this study, charm quarks were identified by electrons (and positrons) from semi-leptonic decays of charmed hadrons. The data corresponded to an integrated luminosity of 95.3 pb$^{-1}$ at ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of inclusive electron cross section in $γγ$ collisions at TRISTAN ### Response: We have studied open charm production in $\gamma \gamma$ collisions with the TOPAZ detector at the TRIST... |
Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at $<\sqrt{s}>$=58GeV with electron tagging | We have measured, with electron tagging, the forward-backward asymmetries of charm- and bottom-quark pair productions at $<\sqrt{s} >$=58.01GeV, based on 23,783 hadronic events selected from a data sample of 197pb$^{-1}$ taken with the TOPAZ detector at TRISTAN. The measured forward-backward asymmetries are $A_{FB}^c =... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the forward-backward asymmetries for charm- and bottom-quark pair productions at $<\sqrt{s}>$=58GeV with electron tagging ### Response: We have measured, with electron tagging, the ... |
J/psi,psi(2S) to mu+ mu- and B to J/psi,psi(2S) Cross Sections | This paper presents a measurement of J/psi,psi(2S) differential cross sections in p-pbar collisions at square root s = 1.8 TeV. The cross sections are measured above 4 GeV/c in the central region (|eta| < 0.6) using the dimuon decay channel. The fraction of events from B decays is measured, and used to calculate b quar... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: J/psi,psi(2S) to mu+ mu- and B to J/psi,psi(2S) Cross Sections ### Response: This paper presents a measurement of J/psi,psi(2S) differential cross sections in p-pbar collisions at square root s = ... |
$B$ Meson Lifetimes at CDF | Measurements of the $B_u$, $B_d$, and $B_s$ meson lifetime using semileptonic $B_u \rightarrow e \nu D^0 X, B_d \rightarrow e \nu D^* X, B_s \rightarrow l \nu D_s X$ events and exclusive $B_u \rightarrow \psi^{(\prime)} K^{(*)}, B_d \rightarrow \psi^{(\prime)} K^{(*)}_{(s)}, B_s \rightarrow \psi \phi$ events are presen... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: $B$ Meson Lifetimes at CDF ### Response: Measurements of the $B_u$, $B_d$, and $B_s$ meson lifetime using semileptonic $B_u \rightarrow e \nu D^0 X, B_d \rightarrow e \nu D^* X, B_s \rightarrow l ... |
Measurement of inclusive particle spectra and test of MLLA prediction in $e^+e^-$ annihilation at $\sqrt{s}$=58GeV | Inclusive momentum spectra are measured for all charged particles and for each of $\pi^{\pm}$, $K^{\pm}$, $K^0/\bar{K^0}$, and $p/\bar{p}$ in hadronic events produced via $e^+e^-$ annihilation at $\sqrt{s}$=58GeV . The measured spectra are compared with QCD predictions based on the modified leading log approximation(ML... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of inclusive particle spectra and test of MLLA prediction in $e^+e^-$ annihilation at $\sqrt{s}$=58GeV ### Response: Inclusive momentum spectra are measured for all charged particles a... |
Measurement of W and Z Production Cross-sections in p-pbar Collisions at Sqrt(s)=1.8 TeV | The cross sections for W and Z production in p-pbar collisions at sqrt(s)=1.8 TeV are measured using the D0 detector at the Fermilab Tevatron collider. The detected final states are W->e nu, Z->ee, W->mu nu, and Z->mu mu. In the ratio of these measurements, many common sources of systematic error cancel and we measure ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of W and Z Production Cross-sections in p-pbar Collisions at Sqrt(s)=1.8 TeV ### Response: The cross sections for W and Z production in p-pbar collisions at sqrt(s)=1.8 TeV are measure... |
Measurement of the Bs Meson Lifetime | The lifetime of the $B_s$ meson is measured using the semileptonic decay $B_s \to D_s^- \ell^+ \nu X$. The data sample consists of 19.3 pb$^{-1}$ of $p \bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992-1993. There are $76 \pm 8$ $\ell^{+} D_s^{-}$ si... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of the Bs Meson Lifetime ### Response: The lifetime of the $B_s$ meson is measured using the semileptonic decay $B_s \to D_s^- \ell^+ \nu X$. The data sample consists of 19.3 pb$^{-1}$... |
A Technique for Directly Measuring the Gravitational Acceleration of Antihydrogen | The gravitational force on antimatter has never been directly measured. A method is suggested for measuring the acceleration of antimatter $(\bar g)$ by measuring the deflection of a beam of neutral antihydrogen atoms in the Earth's gravitational field. While a simple position measurement of the beam could be used, a m... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: A Technique for Directly Measuring the Gravitational Acceleration of Antihydrogen ### Response: The gravitational force on antimatter has never been directly measured. A method is suggested for me... |
DUMAND and AMANDA: High Energy Neutrino Astrophysics | The field of high energy neutrino astrophysics is entering an exciting new phase as two new large-scale observatories prepare to come on line. Both DUMAND (Deep Underwater Muon and Neutrino Detector) and AMANDA (Antarctic Muon and Neutrino Detector) had major deployment efforts in 12/93--1/94. Results were mixed, with ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: DUMAND and AMANDA: High Energy Neutrino Astrophysics ### Response: The field of high energy neutrino astrophysics is entering an exciting new phase as two new large-scale observatories prepare to ... |
DUMAND-II (Deep Underwater Muon and Neutrino Detector) PROGRESS Report | The DUMAND-II detector will search for astronomical sources of high energy neutrinos. Successful deployment of the basic infrastructure, including the shore cable, the underwater junction box, and an environmental module was accomplished in December, 1993. One optical module string was also deployed and operated, loggi... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: DUMAND-II (Deep Underwater Muon and Neutrino Detector) PROGRESS Report ### Response: The DUMAND-II detector will search for astronomical sources of high energy neutrinos. Successful deployment of ... |
$W^+Z$ and $W^+γ^*$ Backgrounds to Strong $W^+W^+$ Scattering at the LHC | Because of inevitable blind spots at high rapidity and low transverse momentum, the process $\overline qq \rightarrow l^+ l^- \ l^{+} \nu$ provides a surprisingly large background to the $W^+W^+ \rightarrow l^+ \nu \ l^+ \nu$ signal associated with strong $WW$ scattering. Previous calculations of the total background a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: $W^+Z$ and $W^+γ^*$ Backgrounds to Strong $W^+W^+$ Scattering at the LHC ### Response: Because of inevitable blind spots at high rapidity and low transverse momentum, the process $\overline qq \ri... |
Simulations of Supercollider Physics | The Standard Model of particle physics makes it possible to simulate complete events for physics signatures and their backgrounds in high energy collisions. Knowledge of how the produced particles interact with the materials in a detector makes it possible to simulate the response of any particular detector design to t... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Simulations of Supercollider Physics ### Response: The Standard Model of particle physics makes it possible to simulate complete events for physics signatures and their backgrounds in high energy ... |
Threshold production of charmed and B mesons in e+e- annihilation | A simple extension of the QCD inspired potential model which includes dynamical quarks first proposed by Eichten et al. is remarkably successful in accounting both for the observed narrow state heavy quarkonium spectroscopy and experimental data on threshold production of charmed and B mesons in e+e- annihilation. In a... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Threshold production of charmed and B mesons in e+e- annihilation ### Response: A simple extension of the QCD inspired potential model which includes dynamical quarks first proposed by Eichten et ... |
Search for New Particles Decaying to Dijets in p-pbar Collisions at sqrt(s)=1.8 TeV | We have used 19 pb**-1 of data collected with the Collider Detector at Fermilab to search for new particles decaying to dijets. We exclude at 95% confidence level models containing the following new particles: axigluons with mass between 200 and 870 GeV, excited quarks with mass between 80 and 570 GeV, and color octet ... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Search for New Particles Decaying to Dijets in p-pbar Collisions at sqrt(s)=1.8 TeV ### Response: We have used 19 pb**-1 of data collected with the Collider Detector at Fermilab to search for new ... |
Observation of Excess $Λ(\barΛ)$ Production in Two-Photon Processes at TRISTAN | We have carried out inclusive measurements of $\Lambda(\bar{\Lambda})$ production in two-photon processes at TRISTAN. The mean $\sqrt{s}$ was 58 GeV and the integrated luminosity was 265 pb$^{-1}$. Inclusive $\Lambda (\bar{\Lambda})$ samples were obtained under such conditions as no-electron, anti-electron, and remnant... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Observation of Excess $Λ(\barΛ)$ Production in Two-Photon Processes at TRISTAN ### Response: We have carried out inclusive measurements of $\Lambda(\bar{\Lambda})$ production in two-photon process... |
Measurement of alpha_s(M_Z^2) from Hadronic Event Observables at the Z^0 Resonance | The strong coupling alpha_s(M_Z^2) has been measured using hadronic decays of Z^0 bosons collected by the SLD experiment at SLAC. The data were compared with QCD predictions both at fixed order, O(alpha_s^2), and including resummed analytic formulae based on the next-to-leading logarithm approximation. In this comprehe... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Measurement of alpha_s(M_Z^2) from Hadronic Event Observables at the Z^0 Resonance ### Response: The strong coupling alpha_s(M_Z^2) has been measured using hadronic decays of Z^0 bosons collected ... |
Electron identification using the TOPAZ detector at TRISTAN | We present an electron-identification method using the time-projection chamber and the lead-glass calorimeter in the TOPAZ detector system. Using this method we have achieved good electron identification against hadron backgrounds over a wide momentum range in the hadronic events produced by both single-photon exchange... | ### Prompt: Below is an title of a high energy physics paper. Write an abstract of the corresponding paper.### Instruction: Electron identification using the TOPAZ detector at TRISTAN ### Response: We present an electron-identification method using the time-projection chamber and the lead-glass calorimeter in the TOPAZ... |
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