id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
|---|---|---|---|---|---|---|
hep-ph/9410263 | Elimination of the Landau Ghost from Chiral Solitons | We show a practical way based on the K\"{a}ll\'{e}n-Lehmann representation
for the two-point functions to eliminate the instability of the vacuum against
formation of small sized meson configurations in the chiral $\sigma$ model. | 1994-10-11 | 2009-09-25 | [
"hep-ph"
] | J.Hartmann, F.Beck and W. Bentz |
hep-ph/9410258 | Three-jet production at LEP and the bottom quark mass | We consider the possibility of extracting the bottom quark mass from LEP
data. The inclusive decay rate for $\zbb +\cdots$ is obtained at order $\as$ by
summing up the one-loop two-parton decay rate to the tree-level three-parton
rate. We calculate the decay width of the $Z$-boson into two and three jets
containing the... | 1994-10-11 | 2009-10-28 | [
"hep-ph"
] | Mikhail Bilenky, Germ\'an Rodrigo and Arcadi Santamaria |
hep-ph/9410265 | Production of Polarized tau Pairs and Tests of CP Violation Using
Polarized e+e- Colliders Near Threshold | We consider the production of tau pairs by electron-positron colliding beams
at the maximum cross section near the threshold. At this energy tau pairs are
produced mostly in the s-wave which implies that the spin of the tau pairs are
almost always pointing in the beam direction independent of the production
angle. When... | 1994-10-11 | 2009-12-30 | [
"hep-ph"
] | Yung Su Tsai |
hep-ph/9410266 | $WZ$ Production at Hadron Colliders: Effects of Non-Standard $WWZ$
Couplings and QCD Corrections | The process $p\,\pbar \rightarrow W^{\pm}Z + X \rightarrow \ell^\pm_1 \nu_1
\ell_2^+ \ell_2^- + X$ is calculated to ${\cal O}(\alpha_s)$ for general $C$
and $P$ conserving $WWZ$ couplings. At the Tevatron center of mass energy, the
QCD corrections to $WZ$ production are modest. At Large Hadron Collider (LHC)
energies, ... | 1994-10-11 | 2016-09-01 | [
"hep-ph"
] | U. Baur, T. Han and J. Ohnemus |
hep-ph/9410291 | Taming the Scalar Mass Problem with a Singlet Higgs Boson | We investigate the fine-tuning problem in the Standard Model and show that
Higgs boson and top quark masses consistent with current experimental bounds
cannot be obtained unless one extends the particle spectrum. A minimal
extension which achieves this involves addition of a singlet real scalar and
one generation of ve... | 1994-10-11 | 2009-10-28 | [
"hep-ph"
] | Anirban Kundu and Sreerup Raychaudhuri |
hep-ph/9410255 | Once More on the Radiative Corrections to the Nucleon Structure
Functions in QCD | A new representation of the next to leading QCD corrections to the nucleon
structure functions is given in terms of parton distributions. All
$~\alpha_{s}~$ corrections to the leading logarithmic approximation (LLA) are
included. In contrast to the similar representations in the literature terms of
order $~O(\alpha_{s}... | 1994-10-10 | 2015-06-25 | [
"hep-ph"
] | D.B. Stamenov |
hep-ph/9410254 | The kinetic energy and and the geometric structure in the $B=2$ sector
of the Skyrme model: A study using the Atiyah-Manton Ansatz | We study the construction of the collective-coordinate manifold in the baryon
number two sector of the Skyrme model. To that end we use techniques of
adiabatic large amplitude collective motion, which treat potential and kinetic
energy on an equal footing. In this paper the starting point is the Ansatz
proposed by Atiy... | 1994-10-10 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Niels R. Walet |
hep-ph/9410253 | CP Violation in the Decay $b\rightarrow s\gamma$ in the Two-Higgs
Doublet Model | In the most general two-Higgs doublet model with an approximate family
symmetry and CP violation being originated solely from the relative phase of
two vacuum expectation values, CP asymmetry in the decay $b\rightarrow s\gamma$
may arise from the CP violation of the charged Higgs boson interactions with
fermions. This ... | 1994-10-10 | 2010-11-01 | [
"hep-ph"
] | Lincoln Wolfenstein and Yue-Liang Wu |
hep-ph/9410256 | Dynamics of Baby Skyrmions | Baby Skyrmions are topological solitons in a (2+1)-dimensional field theory
which resembles the Skyrme model in important respects. We apply some of the
techniques and approximations commonly used in discussions of the Skyrme model
to the dynamics of baby Skyrmions and directly test them against numerical
simulations. ... | 1994-10-10 | 2009-10-28 | [
"hep-ph",
"hep-th"
] | B.M.A.G. Piette, B.J. Schroers and W.J. Zakrzewski |
hep-ph/9410252 | Hadronic contributions to the anomalous magnetic moment of the muon by
QCD model with infinite number of vector mesons | We computed the hadronic vacuum-polarization contributions to the muon
anomalous magnetic moment $a_{\mu}(hadr.)$ by using the QCD model with infinite
number of vector mesons [1,2]. The result is $a_{\mu}(hadr.) = 663(23) \times
10^{-10}$. } | 1994-10-10 | 2007-05-23 | [
"hep-ph"
] | B.V.Geshkenbein, V.L.Morgunov |
hep-ph/9410251 | Radiative Corrections for Pion Polarizability Experiments | We use the semi-analytical program RCFORGV to evaluate radiative corrections
to one-photon radiative emission in the high-energy scattering of pions in the
Coulomb field of a nucleus with atomic number Z. It is shown that radiative
corrections can simulate a pion polarizability effect. The average effect was
estimated ... | 1994-10-09 | 2009-09-25 | [
"hep-ph"
] | A. A. Akhundov, S. Gerzon, S. Kananov, M. A. Moinester |
hep-ph/9410250 | The Two Pomerons | A wide variety of experimental data in hadronic reactions are described in
terms of the exchange of an object called the soft pomeron. It is
nonperturbative in origin and is perhaps associated with glueballs. The HERA
measurements of $\nu W_2$ at small $x$ suggest the possibility that there is
also a hard pomeron, whic... | 1994-10-08 | 2007-05-23 | [
"hep-ph"
] | P V Landshoff |
hep-ph/9410244 | A Simple Prescription for First Order Corrections to Quark Scattering
and Annihilation Processes | We formulate the first order corrections to processes involving the
scattering or annihilation of quarks in a form in which the QCD and electroweak
parts are exactly factorised. This allows for a straightforward physical
interpretation of effects such as lepton-hadron correlations, and a simpler
Monte Carlo treatment. ... | 1994-10-07 | 2009-10-28 | [
"hep-ph"
] | Michael H. Seymour (Lund University, Sweden) |
hep-ph/9410245 | Transition Radiation of Ultrarelativistic Neutral Particles | We perform a quantum theoretical calculation of transition radiation by
neutral particles with spin 1/2 equipped with magnetic moments and/or electric
dipole moments. The limit of vanishing masses is treated exactly for arbitrary
refraction index. Finally we apply our result to the solar neutrino flux. | 1994-10-07 | 2008-11-26 | [
"hep-ph"
] | W. Grimus and H. Neufeld |
hep-ph/9410243 | Pi-Pi scattering lengths at finite temperature | The $s$-wave $\pi-\pi$ scattering lengths $a^I(T)$ at finite temperature $T$
and isospin $I=0,2$ are calculated within the SU(2) Nambu--Jona-Lasinio model.
$a^2(T)$ displays a singularity at the Mott temperature $T_M$, defined as
$m_\pi(T_M) = 2m_q(T_M)$, while $a^0(T)$ is singular in addition at the lower
temperature ... | 1994-10-07 | 2009-10-28 | [
"hep-ph"
] | E.Quack, P. Zhuang, Y. Kalinovsky, S.P. Klevansky and J.H\"ufner |
hep-ph/9410248 | The Analytical Value of the Corner-Ladder Graphs Contribution to the
Electron G-2 in QED | The contributions to the (g-2) of the electron from the corner-ladder graphs
in sixth-order (three-loop) QED perturbation theory are evaluated in closed
analytical form. The results obtained are in excellent agreement with the most
precise numerical evaluations already existing in the literature. Our results
allows one... | 1994-10-07 | 2009-10-28 | [
"hep-ph"
] | S.Laporta |
hep-ph/9410247 | On the consistent solution of the gap--equation for spontaneously broken
$\lambda \Phi^4$-theory | We present a self--consistent solution of the finite temperature
gap--equation for $\lambda \Phi^4$ theory beyond the Hartree-Fock approximation
using a composite operator effective action. We find that in a spontaneously
broken theory not only the so--called daisy and superdaisy graphs contribute to
the resummed mass,... | 1994-10-07 | 2009-10-28 | [
"hep-ph"
] | Herbert Nachbagauer |
hep-ph/9410246 | Dynamical Generation of the CKM Matrix | We argue that in dynamical models of fermion masses, which explain the three
mass scales of the generations of fermions with three separate heavy scales
above the electroweak symmetry breaking scale, the off diagonal CKM matrix
elements must be generated at a fourth scale. The simplest form for the
additional mass gene... | 1994-10-07 | 2009-09-25 | [
"hep-ph"
] | Nick Evans |
hep-ph/9410249 | Relativistic Flux Tube Model Calculation of the Isgur-Wise Function | The Relativistic Flux Tube model is used to calculate of the Isgur-Wise
functions describing the exclusive semileptonic decays of $\bar{B}$ and
$\bar{B}_{s}$ mesons. The light quark mass dependence is investigated and the
predicted universal function agrees well with the results of lattice
simulations, and with the exp... | 1994-10-07 | 2010-11-01 | [
"hep-ph"
] | M. G. Olsson and S. Veseli |
hep-ph/9410239 | A Dependence of Hadron Production in Inelastic Muon Scattering and
Dimuon Production by Protons | The A dependence of the production of hadrons in inelastic muon scattering
and of the production of dimuons in high $Q^2$ proton interactions are simply
related. Feynman x distributions and z scaling distributions in nuclei are
compared with energy loss models. Suggestions for new data analyses are
presented. | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | S. Frankel and W. Frati (Physics Department, University of
Pennsylvania) |
hep-ph/9410240 | Matching QCD and HQET heavy--light currents at two loops and beyond | Heavy--light QCD currents are matched with HQET currents at two loops and
leading order in $1/m$. A single formula applies to all current matchings. As a
by--product, a master formula for the two--loop anomalous dimension of the QCD
current $\bar{q}\gamma^{[\mu_1}\ldots\gamma^{\mu_n]}q$ is obtained, yielding a
new resu... | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | D.J.Broadhurst and A.G.Grozin |
hep-ph/9410237 | Hadroproduction and Polarization of Charmonium | In the limit of heavy quark mass, the production cross section and
polarization of quarkonia can be calculated in perturbative QCD. We study the
$p_\perp$-averaged production of charmonium states in $\pi N$ collisions at
fixed target energies. The data on the relative production rates of $\jp$ and
$\chi_J$ is found to ... | 1994-10-06 | 2009-09-25 | [
"hep-ph"
] | M. V\"anttinen, P. Hoyer, S. J. Brodsky and W.-K. Tang |
hep-ph/9410236 | CP Violation | We review the present status of the Standard Model of CP violation, which is
based on a complex phase in the Cabibbo-Kobayashi- Maskawa (CKM) matrix. So far
CP violation has been observed only in $K^0-\Kbar$ mixing, consistent with a
sizable phase. The implications of future CP nonconserving measurements in $K$
and $B$... | 1994-10-06 | 2010-11-01 | [
"hep-ph",
"hep-th"
] | Michael Gronau |
hep-ph/9410242 | b \rightarrow s \gamma AND Z \rightarrow b \overline{b} IN TECHNICOLOR
WITH SCALARS | We consider the radiative decay $b\rightarrow s \gamma$, and the correction
to the $Zb\overline{b}$ vertex in technicolor models with scalars. In these
models, the scalar develops a vacuum expectation value when the technifermions
condense, and the ordinary fermions develop masses via Yukawa couplings. Since
the symmet... | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | Christopher D. Carone, Elizabeth H. Simmons and Yumian Su |
hep-ph/9410235 | Thermal Phase Mixing During First Order Phase Transitions | The dynamics of first order phase transitions are studied in the context of
(3+1)-dimensional scalar field theories. Particular attention is paid to the
question of quantifying the strength of the transition, and how `weak' and
`strong' transitions have different dynamics. We propose a model with two
available low temp... | 1994-10-06 | 2009-10-28 | [
"hep-ph",
"astro-ph",
"cond-mat",
"hep-lat"
] | Julian Borrill and Marcelo Gleiser |
hep-ph/9410234 | The Energy-Energy Correlation Function Revisited | The ${\cal O}(\alpha_s^2)$ coefficient of the energy-energy correlation
function (EEC) has been calculated by four groups with differing results. This
discrepancy has lead to some confusion over how to measure the strong coupling
constant using the EEC and the asymmetry of the energy-energy correlation
function (AEEC) ... | 1994-10-06 | 2008-11-26 | [
"hep-ph"
] | E.W.N. Glover and M.R. Sutton |
hep-ph/9410233 | Chiral Technicolor and Precision Electroweak Measurements | I consider the possibility that electroweak symmetry is broken by a strongly
interacting chiral gauge theory. I argue that some of the discrepancies between
precision electroweak measurements and the predictions of QCD-like technicolor
models can be resolved if technicolor is a chiral gauge theory. I present a toy
tech... | 1994-10-06 | 2014-11-17 | [
"hep-ph"
] | John Terning |
hep-ph/9410232 | Zero-threshold expansion of two-loop self-energy diagrams | An algorithm is constructed to derive a small momentum expansion for two-loop
two-point diagrams in all cases where, due to the presence of physical
thresholds, there are singularities at zero external momentum. The coefficients
of this ``zero-threshold'' expansion are calculated analytically for arbitrary
masses. Nume... | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | F.A. Berends, A.I. Davydychev, V.A. Smirnov, J.B. Tausk |
hep-ph/9410230 | Flavour changing top quark decay within the minimal supersymmetric
standard model | We present the results of the gluino and scalar quarks contribution to the
flavour changing top quark decay into a charm quark and a photon, gluon or a
$Z^0$\ boson within the minimal supersymmetric standard model. We include the
mixing of the scalar partners of the left and right handed top quark. This
mixing has seve... | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | G. Couture, C. Hamzaoui and H. K\"onig |
hep-ph/9410241 | The Deuteron Spin Structure Functions in the Bethe-Salpeter Approach and
the Extraction of the Neutron Structure Function $g_1^n(x)$ | The nuclear effects in the spin-dependent structure functions $g_1^D$ and
$b_2^D$ are calculated in the relativistic approach based on the Bethe-Salpeter
equation with a realistic meson-exchange potential.
The results of calculations are compared with the non-relativistic
calculations. The problem of extraction of th... | 1994-10-06 | 2015-06-25 | [
"hep-ph"
] | A.Yu. Umnikov, L.P. Kaptari, K.Yu. Kazakov and F.C. Khanna |
hep-ph/9410238 | Polarization of Charmonium in \pi N Collisions | Measurements of the polarization of $\jp$ produced in pion-nucleus collisions
are in disagreement with leading twist QCD prediction where $\jp$ is observed
to have negligible polarization whereas theory predicts substantial
polarization. We argue that this discrepancy cannot be due to poorly known
structure functions n... | 1994-10-06 | 2009-09-25 | [
"hep-ph"
] | Wai-Keung Tang |
hep-ph/9410231 | Non-Universal GUT Corrections to the Soft Terms and their Implications
in Supergravity Models | Potentially large non-universal corrections to the soft supersymmetry
breaking parameters arise from their evolution between the Planck and the
grand-unification scales. We detail typical patterns of non-universality in GUT
models, as well as elaborate on their propagation to the weak scale and on
their low-energy impl... | 1994-10-06 | 2009-10-28 | [
"hep-ph"
] | Nir Polonsky and Alex Pomarol |
hep-ph/9410223 | Sphinx: Monte Carlo Program for Polarised Nucleon-Nucleon Collisions | This program can be used to simulate polarised nucleon - nucleon collisions
at high energies. Spins of colliding particles are taken into account. The
program allows to calculate cross sections for various processes. | 1994-10-05 | 2009-10-28 | [
"hep-ph"
] | S. Guellenstern, P. Gornicki, L. Mankiewicz, A. Schaefer |
hep-ph/9410224 | Induced Nucleation in Weak First Order Phase Transition | We study induced nucleation by considering the accumulation rate of shrinking
subcritical bubbles. We derive the probability for a collection of subcritical
bubbles to form a critical bubble, and argue that this mechanism could well
play a role in electroweak phase transitions if the Higgs is heavy. | 1994-10-05 | 2009-09-25 | [
"hep-ph"
] | K. Enqvist and I. Vilja |
hep-ph/9410221 | All Around the Spinless Salpeter Equation | We review some important topics related to the semirelativistic description
of bound states by the spinless Salpeter equation: the special case of the
Coulomb interaction, numerical approximation methods, and a way to avoid the
problematic square-root operator of the relativistic kinetic energy. | 1994-10-05 | 2007-05-23 | [
"hep-ph",
"hep-th"
] | Wolfgang Lucha and Franz F. SCH\"Oberl |
hep-ph/9410225 | Implications of a light stop for the spontaneous CP breaking at finite
temperature in a nonminimal supersymmetric standard model | We study the implications of a light stop for the spontaneous CP breaking at
finite temperature in the Higgs sector of the Minimal Supersymmetric Standard
Model with a gauge singlet. Assuming CP conservation at zero temperature, we
show that the presence of a large mixing between the left- and the right-handed
stops ca... | 1994-10-05 | 2010-11-01 | [
"hep-ph"
] | D. Comelli, M. Pietroni and A. Riotto |
hep-ph/9410228 | Quark Model, Large Order Behavior and Nonperturbative Wave Functions in
QCD | We discuss a few, apparently different (but actually, tightly related)
problems:
1. The relation between QCD and valence quark model,
2. The evaluation of the nonlocal condensate $ \la \bar{q}(x)q(0)\ra $, its
relation to heavy-light $\bar{q}Q$ quark system and to constituent quark mass,
3. The asymptotic behavio... | 1994-10-05 | 2010-11-01 | [
"hep-ph"
] | Ariel R.Zhitnitsky |
hep-ph/9410222 | Monte Carlo Simulations for RHIC Spin Physics | Direct photon production in longitudinally polarised proton-proton collisions
offers the most direct and unproblematic possibility to determine the polarised
gluon distribution of a proton. This information could play a major role for
improving our understanding of the nucleon structure and QCD in general. It is
hoped ... | 1994-10-05 | 2010-11-01 | [
"hep-ph"
] | S. Guellenstern, P. Gornicki, L. Mankiewicz, and A. Schaefer |
hep-ph/9410226 | Intercommutation of Z-string loops violates baryon number | We show that delinking of Z-string loops changes helicity and thus violates
baryon number. The key point is that an unlinked vortex loop can not be
twisted. Helicity of an eventual magnetic twist when averaged in time is zero. | 1994-10-05 | 2009-12-30 | [
"hep-ph"
] | Jacek Dziarmaga |
hep-ph/9410220 | Generations of Quarks and Leptons from Noncompact Horizontal Symmetry | The three chiral generations of quarks and leptons may be generated through a
spontaneous breakdown of the noncompact horizontal gauge symmetry $G_{H}$ which
governs, together with the standard gauge symmetry ${SU(3) \times SU(2) \times
U(1)}$, the world in a vectorlike manner. In a framework of supersymmetric
theory, ... | 1994-10-05 | 2009-10-28 | [
"hep-ph"
] | Kenzo Inoue |
hep-ph/9410227 | Updated Parameter Limits of the Left-Right Symmetric Model | Bounds of the neutral current sector parameters of the left-right symmetric
model are investigated taking into account the low-energy data, LEP-data and
CDF-result for the top mass $m_t=174\pm 10^{+13}_{-12}$. It is found that in
the case of the minimal scalar sector with a left- and a right-handed triplet
and a bidoub... | 1994-10-05 | 2009-10-28 | [
"hep-ph"
] | J. Sirkka |
hep-ph/9410229 | Reduced Neutrino Opacities and the SN 1987A Signal | Axial-vector interactions of neutrinos and axions with a medium are based on
structure functions which cannot be calculated in simple perturbative terms for
nuclear densities. We use the SN~1987A neutrino signal duration to estimate the
range of allowed neutrino opacities of a supernova (SN) core. We perform
numerical ... | 1994-10-05 | 2009-10-28 | [
"hep-ph",
"astro-ph"
] | Wolfgang Keil, H.-Thomas Janka, and Georg Raffelt |
hep-ph/9410210 | Signals for Supersymmetry at HERA | We summarize two sets of signals at HERA in supersymmetric models with
explicitly broken R-parity. (1) The resonant production of single squarks
through an operator $L_1Q_i{ \bar D}_j$. (2) The MSSM production of a squark
and a slepton followed by R-parity violating decays via the operators
$L_iQ_j{\bar D}_k$. The firs... | 1994-10-04 | 2007-05-23 | [
"hep-ph"
] | Herbi Dreiner |
hep-ph/9410219 | How to Measure the $Q\overline{Q}$ Potential in a Light-Front
Calculation | A scheme is developed which shows how one would, given a light-front
Hamiltonian for QCD, extract the $Q\overline{Q}$ potential, i.e. the quantity
which corresponds to the potential between two infinitely heavy quarks in a
rest frame, from a light-front calculation. The resulting potential will in
general depend on the... | 1994-10-04 | 2016-09-01 | [
"hep-ph",
"nucl-th"
] | Matthias Burkardt |
hep-ph/9410216 | Chiral Restoration in the Early Universe: Pion Halo in the Sky | < \psibarpsi > vanishing above $T_c$ indicates chiral symmetry restoration at
high $T$. But is it the old $T=0$ chiral symmetry that is `restored'? In this
talk, I report on the spacetime quantization of the BPFTW effective action for
quarks in a hot environ. The fermion propagator is known to give a
pseudo-Lorentz inv... | 1994-10-04 | 2008-02-03 | [
"hep-ph"
] | Ngee Pong Chang |
hep-ph/9410213 | Excited Heavy Baryons in the Bound State Picture | The orbitally excited heavy quark baryons are studied in the Callan Klebanov
bound state model with heavy spin symmetry. First, a compact description of the
large $N_c$, infinite heavy quark mass bound state wavefunctions and the
collective quantization is given. In order to study the kinematical corrections
due to fin... | 1994-10-04 | 2010-11-01 | [
"hep-ph"
] | Joseph Schechter and Anand Subbaraman |
hep-ph/9410212 | Lattice Gauge Theory: Status Report 1994 | We report on recent developments and results from Lattice Gauge Theory. These
include determinations of the strong coupling constant $\alpha_s$ and the
b-quark mass $M_b$ and an update on the Kaon B parameter $B_K$. Lattice results
for heavy meson decay constants and semileptonic B and D meson decay form
factors are re... | 1994-10-04 | 2007-05-23 | [
"hep-ph"
] | Junko Shigemitsu |
hep-ph/9410214 | Gluon fragmentation to $^1D_2$ quarkonia | Gluon fragmentation to heavy $J^{PC}=2^{-+}$ quarkonia is studied herein. We
compute these D-wave states' polarized fragmentation functions and find that
they are enhanced by large numerical prefactors. The prospects for detecting
the lowest lying $^1D_2$ charmonium state at the Tevatron are discussed. | 1994-10-04 | 2009-10-28 | [
"hep-ph"
] | Peter Cho and Mark Wise |
hep-ph/9410208 | QCD Analysis of Inclusive $\Delta S=1,2$ Transitions: The $|\Delta
I|=1/2$ Rule | The interplay of QCD in $\Delta S=1,2$ non-leptonic weak transitions can be
rigorously analyzed, at the inclusive level, by studying the 2--point functions
associated with the corresponding $\Delta S=1,2$ effective Hamiltonians. The
next-to-leading order calculation of these correlators shows a huge ($\gsim
100\%$) glu... | 1994-10-04 | 2007-05-23 | [
"hep-ph"
] | A. Pich |
hep-ph/9410209 | Evidence on $qq\bar q\bar q$ Hadron Spectrum from $\gamma\gamma\to
vector\,meson\,vector\, meson$ Reactions? | The $\gamma\gamma\to\rho^0\rho^0\to 4 \pi$ reaction shows a broad
"resonance"at 1.5 GeV with no counterpart in the $\rho^+\rho^-$ channel. This
$(J^P,J_z)=(2^+,2)$, $I=0$, and $2$ resonance is considered as a candidate for
a $qq\bar q\bar q$ state. We show, however, that it can also be explained by
potential scattering... | 1994-10-04 | 2009-09-25 | [
"hep-ph"
] | Mitja Rosina and Borut Bajc |
hep-ph/9410217 | Spacetime Quantization of BPFTW Action: Spacelike Plasmon Cut \& New
Phase of the Thermal Vacuum | In this paper, we perform the quantization of the nonlocal BPFTW effective
action in coordinate space. The action is made local by using a conjugate set
of auxiliary fields. The action summarizes the properties of quark propagation
through a hot environ. The fermion propagator shows a pseudo-Lorentz invariant
particle ... | 1994-10-04 | 2008-11-26 | [
"hep-ph"
] | Ngee-Pong Chang |
hep-ph/9410218 | Asymptotic Behavior of the Correlator for Polyakov Loops | The asymptotic behavior of the correlator for Polyakov loop operators
separated by a large distance $R$ is determined for high temperature QCD. It is
dominated by nonperturbative effects related to the exchange of magnetostatic
gluons. To analyze the asymptotic behavior, the problem is formulated in terms
of the effect... | 1994-10-04 | 2010-11-01 | [
"hep-ph",
"hep-lat"
] | Eric Braaten and Agustin Nieto |
hep-ph/9410207 | Parton Distributions in Nuclei | We discuss two topics in this talk. One is a brief overview of nuclear parton
distributions, and the other is SU(2)-flavor-symmetry breaking in {\it nuclear}
antiquark distributions. First, we show that nuclear structure functions
$F_2^A(x)$ could be explained in a $Q^2$ rescaling model with parton
recombination effect... | 1994-10-04 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | S. Kumano (Department of Physics, Saga University) |
hep-ph/9410211 | Stability of Modified Electroweak Strings | We discuss the stability of an electroweak string with axions in its core,
which give to the configuration a quasi-topological property, and compare it
with other modifications using instantons in the thin wall approximation. | 1994-10-04 | 2015-06-25 | [
"hep-ph",
"astro-ph"
] | Luis Masperi, Ariel Megevand |
hep-ph/9410215 | Pion Polarizability, Radiative Transitions, and Quark Gluon Plasma
Signatures | Can one expect gamma rays rates from the QGP to be higher than from the hot
hadronic gas phase? Xiong, Shuryak, Brown (XSB) calculate photon production
from a hot hadronic gas via the reaction $\pi^- + \rho^0 \rightarrow \pi^- +
\gamma$. They assume that this reaction proceeds through the a$_1$(1260). They
also use the... | 1994-10-04 | 2007-05-23 | [
"hep-ph",
"nucl-th"
] | Murray A. Moinester |
hep-ph/9410204 | Localized Energy Deposition in Neutrino Telescopes: a Signature of "New
Physics" | A class of phenomena either not contained in the Standard Model or in its
perturbative treatment (multiple W/Z production, compositeness of quarks and
leptons) leads to a large energy deposition in neutrino telescopes within a
rather small volume. The shape of the particle distribution arising from such
phenomena is es... | 1994-10-03 | 2009-10-28 | [
"hep-ph"
] | G. DOMOKOS and S. KOVESI-DOMOKOS (Department of Physics and Astronomy,
The Johns Hopkins University, Baltimore, MD) |
hep-ph/9410205 | Red giant bound on the axion-electron coupling reexamined | If axions or other low-mass pseudoscalars couple to electrons (``fine
structure constant'' $\alpha_a$) they are emitted from red giant stars by the
Compton process $\gamma+e\to e+a$ and by bremsstrahlung $e+(Z,A)\to (Z,A)+e+a$.
We construct a simple analytic expression for the energy-loss rate for all
conditions releva... | 1994-10-03 | 2008-11-26 | [
"hep-ph"
] | G.Raffelt and A.Weiss |
hep-ph/9410201 | Heavy-Neutrino Chirality Enhancement of the Decay $K_L -> e\mu $ in
Left-Right Symmetric Models | We study the decay $K_L -> e\mu$ in minimal extensions of the Standard Model
based on the gauge groups $SU(2)_L x U(1)_Y$ and $SU(2)_R x SU(2)_L x
U(1)_{B-L}$, in which heavy Majorana neutrinos are present. In $SU(2)_L x
U(1)_Y$ models with chiral neutral singlets, $B(K_L -> e\mu )$ cannot be much
larger than $5 x 10^{... | 1994-10-03 | 2009-10-28 | [
"hep-ph"
] | Z. Gagyi-Palffy, A. Pilaftsis, and K. Schilcher |
hep-ph/9410203 | Proposal for a Simple Model of Dynamical SUSY Breaking | We discuss supersymmetric $SU(2)$ gauge theory with a single matter field in
the $I=3/2$ representation. This theory has a moduli space of exactly
degenerate vacua. Classically it is the complex plane with an orbifold
singularity at the origin. There seem to be two possible candidates for the
quantum theory at the orig... | 1994-10-03 | 2009-09-15 | [
"hep-ph",
"hep-th"
] | K. Intriligator, N. Seiberg, and S.H. Shenker |
hep-ph/9410206 | Particle Hamiltonian and Perturbative Gauge Theories | We discuss the Hamiltonian formulation of the Schwinger proper-time method of
calculating Green functions in gauge theories. Instead of calculating Feynman
diagrams, we solve the corresponding Dyson-Schwinger equations. We express the
solutions in terms of vertex operators, which consist of the zero modes of the
vertex... | 1994-10-03 | 2011-07-19 | [
"hep-ph",
"hep-th"
] | George Siopsis |
hep-ph/9409464 | Vacuum oscillation solution to the solar neutrino problem in standard
and non-standard pictures | The neutrino long wavelength (just-so) oscillation is revisited as a solution
to the solar neutrino problem. We consider just-so scenario in various cases:
in the framework of the solar models with relaxed prediction of the boron
neutrino flux, as well as in the presence of the non-standard weak range
interactions betw... | 1994-10-03 | 2008-11-26 | [
"hep-ph"
] | Z. Berezhiani and A. Rossi |
hep-ph/9410202 | Theoretical Aspects of Single-Spin Asymmetries Studies | We consider theoretical background for experimental measurements of
single-spin asymmetries. We stress the non-perturbative QCD aspects of observed
asymmetries in hadronic reactions. | 1994-10-03 | 2009-10-28 | [
"hep-ph"
] | S.M.Troshin and N.E.Tyurin |
hep-ph/9409462 | Commensurate Scale Relations: Precise Tests of Quantum Chromodynamics
without Scale or Scheme Ambiguity | We derive commensurate scale relations which relate perturbatively calculable
QCD observables to each other, including the annihilation ratio, the heavy
quark potential, tau decay, and radiative corrections to structure function sum
rules. The ratio of scales $Q_A/Q_B$ is unique at leading order and guarantees
that the... | 1994-10-01 | 2007-05-23 | [
"hep-ph"
] | Stanley J. Brodsky (SLAC) and Hung Lung Lu (University of Maryland) |
hep-ph/9409463 | Pion and Sigma Polarizabilities and Radiative Transitions | Fermilab E781 plans measurements of gamma-Sigma and $\gamma$-pion
interactions using a 600 GeV beam of Sigmas and pions, and a virtual photon
target. Pion polarizabilities and radiative transitions will be measured in
this experiment. The former can test a precise prediction of chiral symmetry;
the latter for a_1(1260)... | 1994-10-01 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Murray A. Moinester |
hep-ph/9409458 | Improved Higgs Mass Stability Bound in the Standard Model and
Implications for Supersymmetry | We re-examine the lower bound on the mass of the Higgs boson, $M_H$, from
Standard Model vacuum stability including next-to-leading-log radiative
corrections. This amounts to work with the full one-loop effective potential,
$V(\phi)$, improved by two-loop RGE, and allows to keep control of the scale
invariance of $V$ i... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | J.A. Casas, J.R. Espinosa and M. Quiros |
hep-ph/9409448 | Minimal Quark-Lepton Symmetry Model and Possible Limits on Z'-Mass from
TRISTAN and Lep200 | A minimal extension of the Standard Model containing the four-color
quark-lepton symmetry is discussed. Some features of an additional $Z'$-boson
originated from this symmetry are investigated and the limits on $m_{Z'}$ from
the current TRISTAN data and the possible limits on $m_{Z'}$ from the future
LEP200 collider ar... | 1994-09-30 | 2007-05-23 | [
"hep-ph"
] | A.D.Smirnov |
hep-ph/9409460 | Searching for Anomalous Weak Couplings of Heavy Flavors at the SLC and
LEP | The existence of anomalous electric($\tilde \kappa$) and/or
magnetic($\kappa$) dipole moment couplings between the heavy flavor fermions
($c,b,\tau$) and the $Z$ boson can cause significant shifts in the values of
several electroweak observables currently being probed at both the SLC and LEP.
Using the good agreement b... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | Thomas G. Rizzo |
hep-ph/9409451 | Diffractive Meson Production and the Quark-Pomeron Coupling | Diffractive meson production at HERA offers interesting possibilities to
investigate diffractive processes and thus to learn something about the
properties of the pomeron. The most succesful phenomenological description of
the pomeron so far assumes it to couple like a $C = +1$ isoscalar photon to
single quarks. This c... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | J.Klenner, A.Sch\"afer, W.Greiner |
hep-ph/9409457 | Bounds on Radii and Magnetic Dipole Moments of Quarks and Leptons from
LEP, SLC and HERA | Leptons, quarks and gauge bosons are assumed to be pointlike particles in the
Standard Model. Stringent bounds on the radii of quarks and leptons and their
weak anomalous magnetic moments can be derived from the high-precision
measurements at LEP and SLC. We find a model-independent bound of $R\lsim
10^{-17}cm$ for qua... | 1994-09-30 | 2015-06-25 | [
"hep-ph"
] | G. K"opp, D. Schaile, M. Spira, and P.M. Zerwas |
hep-ph/9409447 | One More Source of Information on the Lepton Mixing Angles | In the framework of the Standard Model with lepton mixing the radiative decay
$\nu_i \rightarrow \nu_j \gamma$ of a neutrino of high ($E_\nu \sim 100 \,
GeV$) and super-high ($E_\nu \ge 1 \, TeV$) energy is investigated in the
Coulomb field of a nucleus. Estimates of the decay probability and ``decay
cross-section'' fo... | 1994-09-30 | 2007-05-23 | [
"hep-ph"
] | A.A.Gvozdev, N.V.Mikheev and L.A.Vassilevskaya |
hep-ph/9409454 | Two-loop mixing of dimension-five flavor-changing operators | We calculate the two-loop QCD mixing of the dimension-five flavor-changing
operators that arise in the Standard Model after integrating out the $W$, $Z$
and Higgs bosons and the top-quark, i.e.~the mixing among gluonic and photonic
magnetic moment operators. Our calculation completes the two-loop anomalous
dimension ma... | 1994-09-30 | 2011-07-19 | [
"hep-ph"
] | M. Misiak and M. Muenz |
hep-ph/9409459 | Kosterlitz-Thouless Phase Transition In The Two Dimensional Linear Sigma
Model | We investigate the O(N) symmetric linear $\sigma$-model in two dimensions by
means of an exact nonperturbative evolution equation. The perturbative infrared
divergences are absent in this formulation. We use a simple approximative
solution of the flow equation which corresponds to a derivative expansion for
the effecti... | 1994-09-30 | 2009-10-28 | [
"hep-ph",
"cond-mat",
"hep-th"
] | M. Gr"ater and C. Wetterich |
hep-ph/9409446 | High energy scattering in QCD and cross singularities of Wilson loops | We consider elastic quark-quark scattering at high energy and fixed
transferred momentum. Performing factorization of soft gluon exchanges into
Wilson line expectation value we find that there is one-to-one correspondence
between high energy asymptotics in QCD and renormalization properties of the so
called cross singu... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | I.A.Korchemskaya and G.P.Korchemsky |
hep-ph/9409450 | Rare Electroweak Processes $K^0_L \to \mu^+ \mu^-$ and $K^0_L \to \gamma
\gamma$ and Heavy Top Quark | A brief overview of the recent measurements of the branching ratio of the
rare $K_L^0 \to \mu^+ \mu^-$ decay in the context of their agreement with the
Standard Model (SM) is given. It is shown that KEK result well correlates with
the SM and B-physics, whereas the BNL results are in conflict with the SM with
the heavy ... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | A.A.Gvozdev, N.V.Mikheev and L.A.Vassilevskaya |
hep-ph/9409452 | A modified discrete sine-Gordon Model | We modify the recently proposed model of Speight and Ward to make it possess
time dependent solutions. We find that for each lattice spacing and for each
velocity of the sine Gordon kink we can find a modification of the model for
which this kink is a solution. We find that this model has really 3
``kink-like" solution... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | W.J. Zakrzewski |
hep-ph/9409455 | Target Mass Effects in QCD Bjorken Sum Rule | We investigate the target mass effects in QCD Bjorken sum rule. The magnitude
of the target mass correction is estimated in a variety of methods employing
positivity bound as well as the experimental data for the asymmetry parameters.
It turns out that the target mass correction is sizable at low $Q^2$ of the
order of ... | 1994-09-30 | 2009-10-28 | [
"hep-ph"
] | Hiroyuki Kawamura and Tsuneo Uematsu |
hep-ph/9409461 | Pulsar Bound on the Photon Electric Charge Reexamined | If photons had a small electric charge $Q_\gamma$ their path in the galactic
magnetic field would be curved, leading to a time delay between photons of
different frequency from a distant source. Cocconi's previous application of
this argument led to a limit which is too restrictive by a factor of about 200;
the correct... | 1994-09-30 | 2008-11-26 | [
"hep-ph"
] | Georg G. Raffelt |
hep-ph/9409453 | Higher-Order Perturbative Corrections to $b\to c$ Transitions at Zero
Recoil | We estimate the two-loop perturbative corrections to zero-recoil matrix
elements of the flavour-changing currents $\bar c\,\gamma^\mu b$ and $\bar
c\,\gamma^\mu\gamma_5\,b$ by calculating the terms of order $n_f\,\alpha_s^2$
and substituting the dependence on the number of flavours by the first
coefficient of the $\bet... | 1994-09-30 | 2011-01-25 | [
"hep-ph"
] | Matthias Neubert |
hep-ph/9409456 | Physics at Low x | The QCD expectations concerning the deep inelastic lepton - hadron scattering
at low $x$ and their phenomenological implications for HERA are summarised.
Theoretical predictions for the structure function $F_2(x,Q^2)$ based on the
leading log$1/x$ resummation are presented and compared with the results
obtained from th... | 1994-09-30 | 2014-11-17 | [
"hep-ph"
] | J. Kwieci\'nski |
hep-ph/9409449 | On Collinearization of Quarks in Quark-Gluon Decays of Heavy
Orthoquarqonia | The decay of heavy orthoquarkonium into quark-antiquark pair and two gluons
is considered. The differential probability of the decay in the tree
approximation is calculated and the final quark mass influence on the quark and
gluon distribution functions is studied. It is shown that the collinear
strengthening of the bo... | 1994-09-30 | 2007-05-23 | [
"hep-ph"
] | A.Ya.Parkhomenko and A.D.Smirnov |
hep-ph/9409443 | ``Non-factorizable'' terms in hadronic B-meson weak decays | The branching ratios for the hadronic B-meson weak decays B -> J/psi K and B
-> D pi are used to extract the size of the ``non-factorizable'' terms in the
decay amplitudes. It is pointed out that the solutions are not uniquely
determined. In the B -> J/psi K case, a 2-fold ambiguity can be removed by
analyzing the cont... | 1994-09-29 | 2009-10-28 | [
"hep-ph"
] | Joao M. Soares |
hep-ph/9409442 | What is a low-energy theorem ? | We discuss the meaning of low-energy theorems (LETs) in the framework of the
effective field theory of the standard model. Particular emphasis is put on the
LET for neutral pion photoproduction off nucleons at threshold. The seemingly
controversial situation surrounding this LET is clarified. | 1994-09-29 | 2008-02-03 | [
"hep-ph",
"nucl-th"
] | G. Ecker and U.-G. Meissner |
hep-ph/9409438 | Form Factor $A_0(q^2)$, Non Leptonic $D(B) \to PV$ Transitions and Rare
$B \to K^* \gamma$ Decays | We use three-point function QCD sum rules to calculate the form factor
$A_0(q^2)$ appearing in the matrix element of the flavour-changing axial
current between the $D (B)$ state and a vector meson state. We describe the
role of this form factor in nonleptonic $D (B) \to P V$ decays and analyze the
light $SU(3)_F$ symme... | 1994-09-29 | 2009-10-28 | [
"hep-ph"
] | P.Colangelo, F.De Fazio and P.Santorelli |
hep-ph/9409444 | $R_{had}$ at the $B$-factory | A systematic theoretical evaluation of the cross section for hadron
production in electron-positron collisions in the energy range just below the
$B$ meson threshold is presented which includes charm and bottom mass effects
and is accurate to order $\as^3$. The corresponding measurement in the energy
region several $Ge... | 1994-09-29 | 2010-11-01 | [
"hep-ph"
] | K.G.Chetyrkin and J.H. K\"uhn |
hep-ph/9409440 | Theoretical Update of the Semileptonic Branching Ratio of B Mesons | We reconsider the prediction of the semileptonic branching ratio of B mesons,
using a recent calculation of the radiative corrections with account for finite
quark masses in nonleptonic decays and taking into account 1/m_b^2 corrections.
For the semileptonic branching ratio we obtain B_SL =(11.8\pm 1.6)% using pole
qua... | 1994-09-29 | 2009-10-28 | [
"hep-ph"
] | E. Bagan, Patricia Ball, V.M. Braun and P. Gosdzinsky |
hep-ph/9409445 | Gradient Approach to the Sphaleron Barrier | We apply the gradient approach to obtain a path over the sphaleron barrier
and to demonstrate the fermionic level crossing phenomenon. Neglecting the
mixing angle dependence and assuming that the fermions of a doublet are
degenerate in mass we employ spherically symmetric ans\"atze for the fields.
The gradient path ove... | 1994-09-29 | 2009-10-28 | [
"hep-ph"
] | Guido Nolte and Jutta Kunz |
hep-ph/9409435 | A Scheme for radiative CP violation | We present a simple model in which CP symmetry is spontaneously broken only
after the radiative corrections are taken into account. The model includes two
Higgs-boson doublets and two right-handed singlet neutrinos which induce the
necessary non-hermitian interaction. To evade the Georgi-Pais theorem, some
fine-tuning ... | 1994-09-29 | 2009-09-01 | [
"hep-ph"
] | Darwin Chang and W.-Y. Keung |
hep-ph/9409439 | On another version of the twistor--like approach to superparticles | Considered is a worldsheet supersymmetric generalization of the D=3
Ferber--Schirafuji twistor--superparticle action. | 1994-09-29 | 2007-05-23 | [
"hep-ph"
] | Igor A. Bandos, Aleksey Yu. Nurmagambetov Dmitrij P. Sorokin and
Dmitrij V. Volkov |
hep-ph/9409437 | Studying $\varepsilon '/\varepsilon$ in the Chiral Quark Model:
$\gamma_5$-Scheme Independence and NLO Hadronic Matrix Elements | We study the $CP$-violating, $|\Delta S| =1$ parameter $\varepsilon
'/\varepsilon$ by computing the hadronic matrix elements in the chiral quark
model. We estimate the coefficients of the next-to-leading order terms in the
chiral expansion that correspond to the operators $Q_6$ and $Q_{11}$. We
consider the impact of t... | 1994-09-29 | 2010-11-01 | [
"hep-ph"
] | S. Bertolini, J.O. Eeg and M. Fabbrichesi |
hep-ph/9409436 | Effective Field Theory of the Linear $O(N)$ Sigma Model | The low energy structure of a theory containing light and heavy particle
species which are separated by a mass gap can adequately be described by an
effective theory which contains only the light particles. In this work we
present a thorough analysis of the effective field theory of the linear $O(N)$
sigma model in the... | 1994-09-29 | 2008-11-26 | [
"hep-ph"
] | A. Nyffeler and A. Schenk |
hep-ph/9409441 | Heavy Meson Dynamics in a QCD Relativistic Potential Model | We use a QCD relativistic potential model to compute the strong coupling
constant $g$ appearing in the effective Lagrangian which describes the
interaction of $0^-$ and $1^-$ $\bar q Q$ states with soft pions in the limit
$m_Q \to \infty$. We compare our results with other approaches; in particular,
in the non relativi... | 1994-09-29 | 2007-05-23 | [
"hep-ph"
] | F. De Fazio |
hep-ph/9409432 | Quantum-Chromodynamic Potential Model for Light-Heavy Quarkonia and the
Heavy Quark Effective Theory | We have investigated the spectra of light-heavy quarkonia with the use of a
quantum-chromodynamic potential model which is similar to that used earlier for
the heavy quarkonia. An essential feature of our treatment is the inclusion of
the one-loop radiative corrections to the quark-antiquark potential, which
contribute... | 1994-09-28 | 2011-07-19 | [
"hep-ph"
] | Suraj N. Gupta and James M. Johnson |
hep-ph/9409431 | Longitudinal Transitions Of Baryon Resonances in Constituent Quark Model | A longitudinal transition operator that satisfies the gauge invariance
requirement is introduced in constituent quark model. The corresponding
longitudinal transitions between the nucleon and baryon resonances are
calculated. We show that the study of the longitudinal coupling plays an
important role in understanding t... | 1994-09-28 | 2008-11-26 | [
"hep-ph",
"nucl-th"
] | Zhenping Li, Yubing Dong and Weihsing Ma |
hep-ph/9409430 | How sharp is the chiral crossover phenomenon for realistic meson masses? | The mass dependence of the chiral phase transition is studied in the linear
$SU(3)\times SU(3)$ sigma-model to leading order in a $1/N_f$-expansion, $N_f$
denoting the number of flavours. For realistic meson masses we find a smooth
crossover between $T\sim181.5$ to 192.6~[MeV]. The crossover looks more rapid
in the lig... | 1994-09-28 | 2010-11-01 | [
"hep-ph"
] | Hildegard Meyer-Ortmanns and Bernd-Jochen Schaefer |
hep-ph/9409429 | A Probe of New Resonant Structures with Four Fermion Processes at a 1
TeV $e^+e^-$ Collider | Oblique contributions from vector particles that are strongly coupled to the
known gauge bosons are calculated for the case of various observables at a 1
TeV $e^+e^-$ collider. Constraints provided by LEP 1 results are taken into
account in a model-independent way through a dispersion relation technique.
Depending on t... | 1994-09-28 | 2019-08-17 | [
"hep-ph"
] | J. Layssac, F.M. Renard, C. Verzegnassi |
hep-ph/9409434 | Solution to the Perturbative Infrared Catastrophe of Hot Gauge Theories | The free energy of a nonabelian gauge theory at high temperature $T$ can be
calculated to order $g^5$ using resummed perturbation theory, but the method
breaks down at order $g^6$. A new method is developed for calculating the free
energy to arbitrarily high accuracy in the high temperature limit. It involves
the const... | 1994-09-28 | 2010-11-01 | [
"hep-ph",
"hep-lat",
"hep-th"
] | Eric Braaten |
hep-ph/9409433 | Small-X Quarks at HERA Predict the Ultra High Energy Neutrino-Nucleon
Cross Section | New structure function data at small Bjorken $x$ from HERA are used along
with next-to-leading order QCD evolution to predict a cross section for
charged-current interactions of ultrahigh energy neutrinos with nucleons. This
new result is over twice the size of previous estimates and has important
implications for cosm... | 1994-09-28 | 2009-10-28 | [
"hep-ph",
"astro-ph"
] | George M. Frichter, Douglas W. McKay and John P. Ralston (Department
of Physics and Astronomy, and Kansas Institute for Theoretical and
Computational Science, University of Kansas, Lawrence, KS, USA) |
hep-ph/9409425 | Physics at DAPHNE | Proceedings of invited lecture at the Zuoz summer school on hadronic aspects
of collider physics, August 23-31, 1994, Zuoz, Switzerland. Describes the PHI
factory DAPHNE being built at Frascati, Italy, and the physics that can be done
there, with emphasis on its potential for studying CP violation. | 1994-09-27 | 2007-05-23 | [
"hep-ph"
] | Paula J. Franzini |
hep-ph/9409428 | {$K^0$}-{$\overline{K}^0$} mixing and the CKM parameters $(\rho,\eta)$
from the Laplace sum rules | Using the Laplace sum rule (LSR) approach, which is less affected by the
contribution of the higher mass hadronic states than the Finite Energy Sum Rule
(FESR), we test the reliability of the existing estimate of the
$K^0$-$\overline {K}^0$ mixing parameter from the four-quark two-point
correlator. We obtain, for the r... | 1994-09-27 | 2010-11-01 | [
"hep-ph",
"hep-lat"
] | S. Narison |
hep-ph/9409422 | Goldstone Bosons | The paper concerns the effective field theory methods used to study the low
energy structure of systems with a spontaneously broken symmetry. I first
explain how the method works in the context of quantum chromodynamics and then
discuss a few general aspects, related to the universality of effective
theories. In partic... | 1994-09-27 | 2007-05-23 | [
"hep-ph"
] | H. Leutwyler |
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