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Measurements of the $τ$ Mass and Mass Difference of the $τ^{+}$
and $τ^{-}$} at BaBar: We present the result from a precision measurement of the mass of the $\tau$
lepton, $M_\tau$, based on $423 fb^{-1}$ of data recorded at the $\Upsilon(4S)$
resonance with the BaBar detector. Using a pseudomass endpoint method, we
... | hep-ex |
New results on alpha_s and optimized scales: A summary of the latest alpha_s results at LEP1 and LEP2 from event-shape
predictions at Order(alpha2_s) + NLLA is presented. Later these are compared to
measurements obtained using the Experimentally Optimized Scale method. Finally
the alpha_s measurement from the 4-jet rat... | hep-ex |
Search for Direct CP Violation in K+-->pi+-pi+pi- Decays by NA48/2: First preliminary measurement of the direct CP-violating parameter Ag by the
NA48/2 experiment at CERN SPS is presented. Using more than 1.6 billions of
charged kaon decays into three charged pions, the charge asymmetry in the
K+-->pi+-pi+pi- Dalitz pl... | hep-ex |
Measurement of the leptonic ttbar charge asymmetry in the dilepton
channel with the D0 detector: We present the legacy measurement of the leptonic ttbar charge asymmetry in
the dilepton channel with the D0 detector. | hep-ex |
Rare B0_(s) -> mu+mu- decays: This review summarizes the current experimental results on rare B0_(s) ->
mu+mu- decays of the Tevatron experiments CDF and D0, and the LHC experiments
ATLAS, CMS and LHCb. The experimental branching fraction upper limits for the
B0_s -> mu+mu- are already quite close to the branching frac... | hep-ex |
A Luminosity Spectrometer for the Zeus Experiment at HERA: The HERA luminosity upgrade is expected to generate two major problems in the
current method of luminosity determination which is based on counting
brehmsstrahlung photons: damage of the calorimeter monitor due to high primary
synchrotron radiation and large mu... | hep-ex |
Limits on Majoron-emitting double-beta decays of Xe-136 in the
KamLAND-Zen experiment: We present limits on Majoron-emitting neutrinoless double-beta decay modes
based on an exposure of 112.3 days with 125 kg of Xe-136. In particular, a
lower limit on the ordinary (spectral index n = 1) Majoron-emitting decay
half-li... | hep-ex |
Searches for the Supersymmetric Partner of the Bottom Quark: We have performed a search for the scalar bottom quark from gluino decays in
an R-parity conserving SUSY scenario with m(gluino) > m(sbottom), by
investigating a final state of large missing transverse energy, with three or
more jets, and some of them from th... | hep-ex |
Measurement of the $B^{\pm}$ production cross-section in pp collisions
at $\sqrt{s} =$ 7 and 13 TeV: The production of $B^{\pm}$ mesons is studied in $pp$ collisions at
centre-of-mass energies of 7 and 13 TeV, using $B^{\pm}\rightarrow J/\psi
K^{\pm}$ decays and data samples corresponding to 1.0 fb$^{-1}$ and 0.3
fb$... | hep-ex |
Measurement of the flavour-specific CP violating asymmetry asl in B0s
decay: The CP violating asymmetry asl is studied with a sample of Bs0 or Bs0bar
semi-muonic decays in proton-proton collisions at a centre-of-mass energy of 7
TeV at LHCb with an integrated luminosity of 1 fb^-1. The final state studied
is Ds{\mu},... | hep-ex |
Search for the Charged Higgs Boson in the Decays of Top Quark Pairs in
the $eτ$ and $μτ$ Channels at $\sqrt{s}$=1.8 TeV: Top quark production offers the unique opportunity to search for a charged
Higgs boson ($H^\pm$), as the contribution from $t\to H^+b\to \tau^+\nu b$ can
be large in extensions of the Standard Mode... | hep-ex |
KLOE results on f0(980), a0(980) scalars and eta decays: The KLOE experiment running at the phi-factory DAPHNE has collected ~ 450
pb^(-1) in the 2001--2002 data taking. We report preliminary results on light
meson spectroscopy based on this data sample; particles are all produced
through phi radiative decays. The natu... | hep-ex |
Study of $K^+ \rightarrow π^{0} e^{+} νγ$ decay with OKA
setup: Results of a study of the $K^+ \rightarrow \pi^{0} e^{+} \nu \gamma $ decay
at OKA setup are presented. More than 32000 events of this decay are observed.
The differential spectra over the photon energy and the photon-electron opening
angle in kaon rest ... | hep-ex |
Measurements of branching fraction ratios and CP asymmetries in B+/-
->D_CP K+/- decays in hadron collisions: We reconstruct B+/- -> D K+/- decays in a data sample collected by the CDF II
detector at the Tevatron collider corresponding to 1 fb-1 of integrated
luminosity. We select decay modes where the D meson decays... | hep-ex |
Search for Dark Matter Annihilation in the Earth using the ANTARES
Neutrino Telescope: A search for a neutrino signal from WIMP pair annihilations in the centre of
the Earth has been performed with the data collected with the ANTARES neutrino
telescope from 2007 to 2012. The event selection criteria have been develop... | hep-ex |
Search for charged-lepton flavor violation in top quark production and
decay in pp collisions at $\sqrt{s} =$ 13 TeV: Results are presented from a search for charged-lepton flavor violating
(CLFV) interactions in top quark production and decay in pp collisions at a
center-of-mass energy of 13 TeV. The events are requ... | hep-ex |
Measurement of the Transverse Single-Spin Asymmetry for Mid-rapidity
Production of Neutral Pions in Polarized p+p Collisions at 200 GeV
Center-of-Mass Energy: The spin structure of the proton has revealed itself to be extremely complex
and is an area of ongoing research. The Relativistic Heavy Ion Collider (RHIC)
a... | hep-ex |
Search for Cosmic-ray Boosted Sub-GeV Dark Matter using Recoil Protons
at Super-Kamiokande: We report a search for cosmic-ray boosted dark matter with protons using the
0.37 megaton$\times$years data collected at Super-Kamiokande experiment during
the 1996-2018 period (SKI-IV phase). We searched for an excess of prot... | hep-ex |
Correlated inclusive /\bar production in e+e- annihilations at
sqrt(s)~10.5 GeV: Using a 13.7/fb sample of continuum two-jet e+e- -> qqbar events collected
with the CLEO detector, we have searched for correlations between / and /\bar
particles, specifically in cases where the opening angle between the two
particles i... | hep-ex |
Feasibility, engineering aspects and physics reach of microwave cavity
experiments searching for hidden photons and axions: Using microwave cavities one can build a resonant
``light-shining-through-walls'' experiment to search for hidden sector photons
and axion like particles, predicted in many extensions of the sta... | hep-ex |
Performance of the CMS Zero Degree Calorimeters in pPb collisions at the
LHC: The two Zero Degree Calorimeters (ZDCs) of the CMS experiment are located at
$\pm 140~$m from the collision point and detect neutral particles in the
$|\eta| > 8.3$ pseudorapidity region. This paper presents a study on the
performance of th... | hep-ex |
Recent Results from the Tevatron Fixed Target and Collider Experiments: We present a review of recent QCD related results from the Fermilab Tevatron
fixed target and collider experiments. Topics include jet and boson production,
W boson and top quark mass measurements, and studies of CP violation. | hep-ex |
Study of charmless hadronic B decays into the final states $Kπ,
ππ$, and KK, with the first observation of $B \to π^+ π^-$ and $B\to
K^0π^0$: We have studied charmless hadronic decays of B mesons into two-body final
states with kaons and pions. We present preliminary results based on 9.66
million $B\bar{B}$ pairs c... | hep-ex |
Top properties (excluding mass) and ancillary measurements: A review on recent top quark properties measurements by the ATLAS and CMS
Collaborations in pp collisions at the LHC is presented. | hep-ex |
Search for Dark Matter at CMS: The results are presented from searches with the CMS experiment for
directly-produced dark matter particles. All these searches use the full LHC
Run-I dataset of ~20/fb of proton-proton collisions at 8TeV centre-of-mass
energy. Final states with a monojet, monophoton, and monolepton signa... | hep-ex |
Interpretation of Scalar and axial mesons in LHCb from an historical
perspective: LHCb measurements of $B_{d,s} \to J/\psi + X$ are shown to be consistent with
historical data on scalar and axial mesons below 2 GeV. This is in contrast to
some recent interpretations of these data. Further tests of our hypotheses in
o... | hep-ex |
Search for supersymmetric particles in events with lepton pairs and
large missing transverse momentum in sqrt{s} = 7 TeV proton-proton collisions
with the ATLAS experiment: Results are presented of searches for the production of supersymmetric
particles decaying into final states with missing transverse momentum an... | hep-ex |
Investigation of the $e^+e^- \to ωπ^0 \to π^0 π^0 γ$
reaction in the energy domain near the $φ$-meson: The $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ process was investigated
in the SND experiment at the VEPP-2M collider. A narrow energy interval near
the $\phi$-meson was scanned. The observed cross-section rev... | hep-ex |
Measurements of top-quark pair differential cross-sections in the $eμ$
channel in $pp$ collisions at $\sqrt{s} = 13$ TeV using the ATLAS detector: This article presents measurements of $t\bar{t}$ differential cross-sections
in a fiducial phase-space region, using an integrated luminosity of 3.2
fb$^{-1}$ of proton--p... | hep-ex |
Inclusive and exclusive measurements of $B$ decays to $χ_{c1}$ and
$χ_{c2}$ at Belle: We report inclusive and exclusive measurements for $\chi_{c1}$ and
$\chi_{c2}$ production in $B$ decays. We measure $\mathcal{B}(B \to \chi_{c1}
X)$= $(3.03 \pm 0.05(\mbox{stat}) \pm 0.24(\mbox{syst})) \times 10^{-3}$ and
$\mathcal{... | hep-ex |
Forward pi^0-meson production at HERA: The production of high transverse momentum piz^0-mesons has been measured in
deep-inelastic e-p scattering events at low Bjorken-$x$ taken with the
H1 detector at HERA. The production of high p_T particles is strongly
correlated to the emission of hard partons in QCD and is ther... | hep-ex |
Recent Results on $ψ(3770)$ Physics at BES-II: About 33, 6.5 and 1.0 pb$^{-1}$ of $e^+e^-$ annihilation data were,
respectively, taken around the center-of-mass energies of $\sqrt s=$ 3.773 GeV,
at $\sqrt s=$ 3.650 GeV and at $\sqrt s=$ 3.6648 GeV with the BES-II detector
at the BEPC collider. By analyzing these data s... | hep-ex |
Measurement of the top quark pair production cross-section with ATLAS in
the single lepton channel: A measurement of the production cross-section for top quark pairs (t tbar) in
pp collisions at sqrt{s} = 7 TeV is presented using data recorded with the
ATLAS detector at the Large Hadron Collider. Events are selected ... | hep-ex |
Measurement of Mw from LEP2: In 1997 each LEP experiment collected approximately 55 inv. pb of data at a
center-of-mass energy of 183 GeV. These data yield a sample of candidate e+e-
-> WW events from which the mass of the W boson, Mw, is measured. The LEP
combined result, including data taken at roots = 161 and 172 Ge... | hep-ex |
The search for solar axions in the CAST experiment: The CAST (CERN Axion Solar Telescope) experiment at CERN searches for solar
axions with energies in the keV range. It is possible that axions are produced
in the core of the sun by the interaction of thermal photons with virtual
photons of strong electromagnetic field... | hep-ex |
Measurement of inclusive jet and dijet cross sections in proton-proton
collisions at 7 TeV centre-of-mass energy with the ATLAS detector: Jet cross sections have been measured for the first time in proton-proton
collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector. The
measurement uses an integrate... | hep-ex |
High Energy Muon Momentum Estimation from Multiple Coulomb Scattering in
Dense Detectors: A method is described for estimating muon track momentum from the
distribution of hits along tracks in dense calorimeters due to multiple Coulomb
scattering (MCS). The method requires only well-aligned conventional drift
chamber... | hep-ex |
Extraction of F_2^c(x,Q^2) from D* cross sections at H1: The charm contribution to the proton structure, F_2^c(x,Q^2), is determined
using the inclusive cross sections of D*(2010) meson production in
deep-inelastic scattering. The cross section measurement covers the region 5 <
Q2 < 1000 GeV2 in photon virtuality and 0... | hep-ex |
The experimental future of Neutrino Oscillations: After the recent experimental results on neutrino oscillations, some shape
starts to emerge from the puzzle. However, the situation is still far from
being clarified. First of all, accommodating all experimental results in a
single and simple framework is not possible, ... | hep-ex |
The program of research at hadronic beams of ITEP accelerator.
(Collection of experimental proposals): This is a collection of proposals of experiments at hadronic beams of 10 GeV
accelerator, situated at the Institute of Theoretical and Experimental Physics
(Moscow, Russia). The proposals were presented by the leade... | hep-ex |
Direct determination of Neutrino Mass from Tritium Beta Spectrum: The investigation of the endpoint region of the tritium beta decay spectrum
is still the most sensitive direct method to determine the neutrino mass scale.
In the nineties and the beginning of this century the tritium beta decay
experiments at Mainz and ... | hep-ex |
An Experimentalist's View of Neutrino Oscillations: Neutrinos, and primarily neutrino oscillations, have undoubtedly been one of
the most exciting topics in the field of high-energy physics over the past few
years. The existence of neutrino oscillations would require an extension of the
currently accepted description o... | hep-ex |
Discovery of Single Top Quark Production: The first observation of electroweak single top quark production was recently
reported by the the D0 and CDF collaborations based on 2.3 and 3.2 fb-1 of
ppbar collision data collected at \sqrt{s}=1.96 TeV from the Fermilab Tevatron
collider. Several multivariate techniques are ... | hep-ex |
Search for $CP$ violation with kinematic asymmetries in the $D^0 \to K^+
K^- π^+ π^-$ decay: We search for $CP$ violation in the singly-Cabibbo-suppressed decay
$D^{0}\rightarrow K^{+}K^{-}\pi^{+}\pi^{-}$ using data corresponding to an
integrated luminosity of $988\text{ }{\rm fb}^{-1}$ collected by the Belle
detecto... | hep-ex |
Search for high-mass Z-gamma resonances in e+e-gamma and mu+mu-gamma
final states in proton-proton collisions at sqrt(s) = 8 and 13 TeV: This paper describes the search for a high-mass narrow-width scalar particle
decaying into a Z boson and a photon. The analysis is performed using
proton-proton collision data recor... | hep-ex |
Proton structure and elastic scattering amplitudes: Three main statements are advocated in this talk:
1. Protons become more active at the periphery with increase of their
collision energy as follows from comparison of ISR and LHC data.
2. The geometric scaling is violated even in the diffraction region as
follows ... | hep-ex |
The LHCb ultra-fast simulation option, Lamarr: design and validation: Detailed detector simulation is the major consumer of CPU resources at LHCb,
having used more than 90% of the total computing budget during Run 2 of the
Large Hadron Collider at CERN. As data is collected by the upgraded LHCb
detector during Run 3 of... | hep-ex |
First study of the CP-violating phase and decay-width difference in
$B_s^0\toψ(2S)φ$ decays: A time-dependent angular analysis of $B_s^0\to\psi(2S)\phi$ decays is
performed using data recorded by the LHCb experiment. The data set corresponds
to an integrated luminosity of 3.0\invfb collected during Run 1 of the LHC. ... | hep-ex |
Measurement of Baryon Electromagnetic Form Factors at BESIII: The Beijing $e^+e^-$-collider (BEPCII) is a double-ring symmetric collider
running at center-of-mass energies between 2.0 and 4.6 GeV. This energy range
allows the BESIII-experiment to measure baryon electromagnetic form factors in
direct $e^+e^-$-annihilati... | hep-ex |
First measurement of low intensity fast neutron background from rock at
the Boulby Underground Laboratory: A technique to measure low intensity fast neutron flux has been developed.
The design, calibrations, procedure for data analysis and interpretation of the
results are discussed in detail. The technique has been ... | hep-ex |
Differential Z + jet cross section measurements at 8 TeV: The measurement of differential cross section of a Z boson produced in
association with jets is presented. The cross section is presented with respect
to various jet kinematic variables where the Z bosons are reconstructed from
opposite sign lepton pairs. The an... | hep-ex |
Measurements of the mass and width of the eta_c using psi' -> gamma
eta_c: The mass and width of the lowest lying S-wave spin singlet charmonium state,
the eta_c, are measured using a data sample of 1.06x10^8 psi' decays collected
with the BESIII detector at the BEPCII storage ring. We use a model that
incorporates i... | hep-ex |
Searches for leptoquarks and excited fermions at HERA: Recent results on searches for new particles at the electron-proton collider
HERA are reported. Based on roughly 100pb-1 of e^+p data and 16pb-1 of e^-p
data per experiment, taken in the years 1994-2000, the H1 and ZEUS
collaborations have derived new exclusion lim... | hep-ex |
Measurement of Branching Fractions for $B\to η_c K^{(*)}$ Decays: We report measurements of branching fractions for charged and neutral $B\to
\eta_c K$ decays where the $\eta_c$ meson is reconstructed in the $K_S^0
K^{\pm}\pi^{\mp}, K^+ K^- \pi^0, K^{*0} K^-\pi^+$ and $p \bar{p}$ decay
channels. The neutral $B^0$ chann... | hep-ex |
Search for a massless dark photon in $Λ^{+}_{c}\to p
γ^{\prime}$ decay: A search for a massless dark photon $\gamma^{\prime}$ is conducted using 4.5
$\mathrm{fb}^{-1}$ of $e^+e^-$ collision data collected at center-of-mass
energies between 4.600 and 4.699 $\mathrm{GeV}$ with the BESIII detector at
BEPCII. No signific... | hep-ex |
Spin Physics with the PHENIX Detector System: The PHENIX experiment at RHIC has extended its scope to cover spin physics
using polarized proton beams. The major goals of the spin physics at RHIC are
elucidation of the spin structure of the nucleon and precision tests of the
symmetries. Sensitivities of the spin physics... | hep-ex |
Measurement of the forward-backward asymmetry of electron and muon
pair-production in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the ATLAS
detector: This paper presents measurements from the ATLAS experiment of the
forward-backward asymmetry in the reaction $pp\rightarrow
Z/\gamma^{*}\rightarrow l^{+}l^{-}$, with $... | hep-ex |
$Υ$ Production in Heavy-Ion Collisions from the STAR Experiment: In these proceedings, we present recent results of $\Upsilon$ measurements in
heavy-ion collisions from the STAR experiment at RHIC. Nuclear modification
factors ($R_{AA}$) for $\Upsilon(1S)$ and $\Upsilon(1S+2S+3S)$ in U+U
collisions at \sqrtsNN\ = 193 G... | hep-ex |
Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs
boson and a $Z$ boson in the $\ell^+\ell^- t\bar{t}$ and
$ν\barνb\bar{b}$ final states using 140 fb$^{-1}$ of data collected
with the ATLAS detector: A search for a heavy CP-odd Higgs boson, $A$, decaying into a $Z$ boson and a
heavy CP-even Higg... | hep-ex |
UV Irradiation Facility for Solar Effects Simulations: We describe an experimental setup developed aiming to irradiate samples under
UV radiation for accelerated test for solar effects according to the relevant
ECSS-ESA standards. This facility has been already used for projects belonging
to large space programs (Cosmi... | hep-ex |
The Double Chooz reactor neutrino experiment: The Double Chooz reactor neutrino experiment will be the next detector to
search for a non vanishing theta13 mixing angle with unprecedented sensitivity,
which might open the way to unveiling CP violation in the leptonic sector. The
measurement of this angle will be based i... | hep-ex |
Development of time-of-flight particle identification for future Higgs
factories: With the emergence of advanced Silicon (Si) sensor technologies such as
LGADs, it is now possible to achieve exceptional time measurement precision
below 50 ps. As a result, the implementation of time-of-flight (TOF) particle
identifica... | hep-ex |
Search for contact interactions in opposite-sign dimuon events in pp
collisions at sqrt(s) = 7 TeV: Results are reported from a search for the effects of contact interactions
using events with a high-mass, oppositely charged muon pair. The events are
collected in proton-proton collisions at sqrt(s) = 7 TeV using the ... | hep-ex |
Measurement of the charge asymmetry in top quark pair production in pp
collisions at sqrt(s) = 8 TeV using a template method: The charge asymmetry in the production of top quark and antiquark pairs is
measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The
data, corresponding to an integrated lu... | hep-ex |
Why is the Conclusion of the GERDA Experiment not Justified ?: The first results of the GERDA double beta experiment in Gran Sasso were
recently presented. They are fully consistent with the Heidelberg-Moscow
experiment, but because of its low statistics cannot proof anything at this
moment. It is no surprise that the ... | hep-ex |
Precision Measurement of CP Violation in D0->pi+pi- at CDF: We report a preliminary measurement of the CP violating asymmetry in
D0->pi+pi- using approximately 215,000 decays reconstructed in about 5.94/fb of
CDF data. We use the strong D*+->D0pi+ decay ("D* tag") to identify the flavor
of the charmed meson at producti... | hep-ex |
Search for Single Top Production at the Tevatron: Searches for the electroweak production of single top quarks have been
started at the Fermilab Tevatron proton-antiproton collider using Run II data
by both the D0 and CDF collaborations. Using a dataset of approximately
160pb^-1, neither experiment finds evidence for S... | hep-ex |
Study of Hadronic Five-Body Decays of Charmed Mesons: We study the decay of D+ and Ds+ mesons into charged five body final states,
and report the discovery of the decay mode D+ -> K+K-Pi+Pi+Pi-, as well as
measurements of the decay modes D+ -> K-Pi+Pi+Pi+Pi-, Ds+ -> K+K-Pi+Pi+Pi-, Ds+
-> PhiPi+Pi+Pi- and D+/Ds+ -> Pi+P... | hep-ex |
Measurement of the production cross section of an isolated photon
associated with jets in proton-proton collisions at sqrt(s) = 7 TeV with the
ATLAS detector: A measurement of the cross section for the production of an isolated photon
in association with jets in proton-proton collisions at a center-of-mass energy
s... | hep-ex |
Search for narrow resonances using the dijet mass spectrum in pp
collisions at sqrt(s) = 8 TeV: Results are presented of a search for the production of new particles
decaying to pairs of partons (quarks, antiquarks, or gluons), in the dijet mass
spectrum in proton-proton collisions at sqrt(s) = 8 TeV. The data sample... | hep-ex |
Search for Free Fractional Electric Charge Elementary Particles: We have carried out a direct search in bulk matter for free fractional
electric charge elementary particles using the largest mass single sample ever
studied - about 17.4 mg of silicone oil. The search used an improved and highly
automated Millikan oil dr... | hep-ex |
Prospects at Future B Factories: Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity
Triangle, University of Cincinnati, USA, 28 September - 2 October 2012.
A concise overview of the possibilities offered by high-luminosity B
Factories in mixing and mixing-related CP violating processes in B ... | hep-ex |
Muon reconstruction and identification with the Run II D0 detector: We present an overview of the muon reconstruction and identification methods
employed by the D0 Collaboration to analyze the Run II (2001-2011) ppbar data
of the Fermilab Tevatron collider at sqrt s = 1.96 TeV. We discuss the
performance of these metho... | hep-ex |
$\mathrm{t\bar{t}H}$ production at $\mathrm{13\,TeV}$: In this paper, the latest results of searches for the standard model Higgs
boson produced in association with a top quark-antiquark pair
($\mathrm{t\bar{t}H}$), where Higgs decays into photons, bottom quark-antiquark
pair or leptons via $\mathrm{WW^*}$, $\mathrm{ZZ... | hep-ex |
Status Report of the MACRO Experiment for the year 2001: In this 2001 status report of the MACRO experiment, results are presented on
atmospheric neutrinos and neutrino oscillations, high energy neutrino
astronomy, searches for WIMPs, search for low energy stellar gravitational
collapse neutrinos, stringent upper limit... | hep-ex |
Observation of $K^*(892)^0\bar K^*(892)^0$ in $χ_{cJ}$ Decays: $K^*(892)^0\bar K^*(892)^0$ signals from $\chi_{cJ} (J=0,1,2)$ decays are
observed for the first time using a data sample of 14 million $\psi(2S)$ events
accumulated at the BES II detector. The branching fractions ${\cal
B}(\chi_{cJ}\to K^*(892)^0\bar K^*(8... | hep-ex |
Search for a light charged Higgs boson decaying to c s-bar in pp
collisions at sqrt(s) = 8 TeV: A search for a light charged Higgs boson, originating from the decay of a top
quark and subsequently decaying into a charm quark and a strange antiquark, is
presented. The data used in the analysis correspond to an integra... | hep-ex |
The monitoring system for the aerogel Cherenkov counter of the BELLE
detector: We report on a design and performances of a monitoring system developed for
the aerogel Cherenkov counters (ACC) of the BELLE detector. The system consists
of blue LEDs, a diffuser box, and optical distributors which distribute the LED
lig... | hep-ex |
Transverse Polarization of Lambda and Lambda-bar Hyperons in Quasireal
Photoproduction: The HERMES experiment has measured the transverse polarization of Lambda and
Lambda-bar hyperons produced inclusively in quasireal photoproduction at a
positron beam energy of 27.6 GeV. The transverse polarization of the Lambda
hy... | hep-ex |
Top quark and W/Z results from the Tevatron: We summarize results of some crucial measurements of the top quark and W/Z
boson properties carried out by the D0 and the CDF collaborations at the
Tevatron collider at Fermilab based on data collected during Run 1 (1992-96).
Among the interesting properties measured are the... | hep-ex |
Neutrino Characterisation using Convolutional Neural Networks in CHIPS
water Cherenkov detectors: This work presents a novel approach to water Cherenkov neutrino detector
event reconstruction and classification. Three forms of a Convolutional Neural
Network have been trained to reject cosmic muon events, classify bea... | hep-ex |
Search for Lepton Flavor Violation in $Υ(3S)\rightarrow
e^{\pm}μ^{\mp}$: We report on the first search for electron-muon lepton flavor violation (LFV)
in the decay of a $b$~quark and $b$~antiquark bound state. We look for the LFV
decay $\Upsilon (3S)\rightarrow e^{\pm}\mu^{\mp}$ in a sample of 118~million
$\Upsilon (... | hep-ex |
Dalitz plot analysis of the D^+ -> K^-pi^+pi^+ decay: We perform a Dalitz plot analysis of D^+ -> K^-pi^+pi^+ decay with the CLEO-c
data set of 572 pb^-1 of e^+e^- collisions accumulated at the psi(3770). This
corresponds to 1.6 million D^+D^- pairs from which we select 140793 candidate
events with a small background o... | hep-ex |
Searches for exclusive Higgs and $Z$ boson decays into $J/ψγ$,
$ψ(2S)γ$, and $Υ(nS)γ$ at $\sqrt{s}=13$ TeV with the
ATLAS detector: Searches for the exclusive decays of the Higgs and $Z$ bosons into a
$J/\psi$, $\psi(2S)$, or $\Upsilon(nS)$ ($n=1,2,3$) meson and a photon are
performed with a $pp$ collision data sam... | hep-ex |
Measurement of the Absolute Branching Fraction of D0 -> K- pi+: We measure the absolute branching fraction for $D0 \to K^{-} \pi^{+}$ using
partial reconstruction of $B0bar \to D^{*+} X \ell^{-} \bar{\nu}_{\ell}$
decays. Only the charged lepton and the soft pion from the decay $D^{*+} \to
D^{0} \pi^{+}$ are used. Based... | hep-ex |
Search for production of single top quarks via flavor-changing neutral
currents at the Tevatron: We search for the production of single top quarks via flavor-changing neutral
current couplings of a gluon to the top quark and a charm (c) or up (u) quark.
We analyze 230 pb^{-1} of lepton+jets data from \ppbar collision... | hep-ex |
Heavy quark meson spectroscopy at CDF: From a study of the X(3872) mass and width based on the world's largest
sample of $X(3872)\to J/\psi\pi^+\pi^-$ decays, we find that our X(3872) signal
is consistent with a single state, and leads to the most precise measurement of
the X(3872) mass. We also report the recent evide... | hep-ex |
Production of Slow Protonium in Vacuum: We describe how protonium, the quasi-stable antiproton-proton bound system,
has been synthesized following the interaction of antiprotons with the
molecular ion H$_2^+$ in a nested Penning trap environment. From a careful
analysis of the spatial distributions of antiproton annihi... | hep-ex |
Evidence for the decay B0 --> K+K-pi0: We report a search for charmless hadronic decays of neutral B mesons to the
final state K+K-pi0. The results are based on a 711 fb^-1 data sample that
contains 772x10^6 BB-bar pairs, and was collected at the Y(4S) resonance with
the Belle detector at the KEKB asymmetric-energy e+e... | hep-ex |
Measurement of the centrality dependence of the charged-particle
pseudorapidity distribution in proton--lead collisions at
$\sqrt{s_{_{\rm{NN}}}} = 5.02$ TeV with the ATLAS detector: The centrality dependence of the mean charged-particle multiplicity as a
function of pseudorapidity is measured in approximately 1 $\... | hep-ex |
Evidence for the decay $B^0\to J/ψω$ and measurement of the
relative branching fractions of $B^0_s$ meson decays to $J/ψη$ and
$J/ψη^{'}$: First evidence of the $B^0\to J/\psi\omega$ decay is found and the
$B_{s}^0\to J/\psi\eta$ and $B_{s}^0\to J/\psi\eta^{\prime}$ decays are studied
using a dataset corresponding ... | hep-ex |
Prospects for X(3872) Detection at Panda: Monte-Carlo simulations for a resonance scan of the charmonium-like state
X(3872) at Panda are performed. Final state radiation hadronic background
reactions are taken into account. The signal reconstruction uses a realistic
pattern recognition (track finder and track fitter) a... | hep-ex |
Neutrino Physics Opportunities with the IsoDAR Source at Yemilab: IsoDAR seeks to place a high-power-cyclotron and target combination, as an
intense source of $\bar{\nu}_e$ at the level of $\sim 10^{23}$/year, close to a
kiloton-scale neutrino detector in order to gain sensitivity to very
short-baseline neutrino oscill... | hep-ex |
Precision Top Quark Mass Measurement in the Lepton + Jets Topology in
ppbar Collisions at sqrt(s) = 1.96 TeV: We report two measurements of the top quark mass M_top using the CDF II
detector at the Fermilab Tevatron in a 318 pb^-1 data sample observed in the
lepton + jets final state. One method uses an event-based l... | hep-ex |
Inclusive Charged Hadron Production in Two-Photon Collisions at LEP: Inclusive charged hadron production, e+e- -> e+e- h+- X, is studied using 414
pb-1 of data collected at LEP with the L3 detector at centre-of-mass energies
between 189 and 202 GeV. Single particle inclusive differential cross sections
are measured as ... | hep-ex |
Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless
Three-body Baryonic B Decays: The angular distributions of the baryon-antibaryon low-mass enhancements seen
in the charmless three-body baryonic B decays B+ -> p pbar K+, B0 -> p pbar Ks,
and B0 -> p Lambdabar pi- are reported. A quark fragmentation in... | hep-ex |
Observation of Two New N* Peaks in J/psi -> $p pi^- \bar n$ and $\bar
pπ^+n$ Decays: The $\pi N$ system in decays of $J/\psi\to\bar NN\pi$ is limited to be
isospin 1/2 by isospin conservation. This provides a big advantage in studying
$N^*\to \pi N$ compared with $\pi N$ and $\gamma N$ experiments which mix
isospin 1... | hep-ex |
Excess Electronic Recoil Events in XENON1T: We report results from searches for new physics with low-energy electronic
recoil data recorded with the XENON1T detector. With an exposure of 0.65 t-y
and an unprecedentedly low background rate of $76\pm2$ events/(t y keV) between
1 and 30 keV, the data enables sensitive sea... | hep-ex |
Measurement of indirect CP-violating asymmetries in $D^0\to K^+K^-$ and
$D^0\to π^+π^-$ decays at CDF: We report a measurement of the indirect CP-violating asymmetries
($A_{\Gamma}$) between effective lifetimes of anticharm and charm mesons
reconstructed in $D^0\to K^+ K^-$ and $D^0\to \pi^+\pi^-$ decays. We use the
... | hep-ex |
Precision Electroweak Physics at the Z: A review of the decade of Z-pole electroweak physics is presented. Although
all experimental work has been completed, it represents a ``Golden Age'' in our
understanding of the Minimal Electroweak Standard Model (MSM). The latest (and
nearly final) results from the LEP and SLC ex... | hep-ex |
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