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 |
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hep-ph/9407339 | Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy
Quarkonium | A rigorous QCD analysis of the inclusive annihilation decay rates of heavy
quarkonium states is presented. The effective-field-theory framework of
nonrelativistic QCD is used to separate the short-distance scale of
annihilation, which is set by the heavy quark mass $M$, from the
longer-distance scales associated with q... | 1994-07-20 | 2014-11-17 | [
"hep-ph",
"hep-lat"
] | Geoffrey T. Bodwin, Eric Braaten, and G. Peter Lepage |
hep-ph/9407337 | Dijet Production at HERA as a Probe of BFKL Dynamics | We calculate the rate for the deep-inelastic electroproduction of dijets at
HERA. We study the weakening of the azimuthal (back-to-back) correlation
between the jets, as $x$ decreases, to see whether it can be used to identify
BFKL dynamics from conventional fixed-order QCD effects. We show how this may
give informatio... | 1994-07-20 | 2009-10-28 | [
"hep-ph"
] | A.J. Askew, D. Graudenz, J. Kwiecinski and A.D. Martin |
hep-ph/9407338 | Radiation of Heavy Quarks | The rate for the production of massive fermions radiated off a pair of
massless fermions is calculated analytically. Combined with the analytic
calculation of the corresponding virtual contribution one obtains the order
$\alpha^2$ correction to the cross section which is induced by the real and
virtual radiation of a p... | 1994-07-20 | 2010-11-01 | [
"hep-ph"
] | A.H. Hoang, M. Je\.zabek, J.H. K\"uhn, T.Teubner |
hep-ph/9407340 | HQET and Inclusive Decays of Heavy Hadrons | We discuss the recent developments in inclusive decays of hadrons containing
a heavy quark. The subject is approached in a model independent way using an
operator product expansion for the time-ordered product of weak currents. We
discuss the extraction of the weak mixing angle $|V_{cb}|$ from inclusive
semileptonic $B... | 1994-07-20 | 2009-10-28 | [
"hep-ph"
] | Martin J. Savage |
hep-ph/9407341 | Helicity Probabilities For Heavy Quark Fragmentation Into Excited Mesons | In the fragmentation of a heavy quark into a heavy meson whose light degrees
of freedom have angular momentum $3/2$, all the helicity probabilities are
completely determined in the heavy quark limit up to a single probability
$w_{3/2}$. We point out that this probability depends on the longitudinal
momentum fraction $z... | 1994-07-20 | 2009-10-28 | [
"hep-ph"
] | Tzu Chiang Yuan |
hep-ph/9407343 | Renormalization Scheme Dependence and the Problem of Theoretical
Uncertainties in Next-Next-to-Leading Order QCD Predictions | Renormalization scheme uncertainties in the next-next-to-leading order QCD
predictions are discussed. To obtain an estimate of these uncertainties it is
proposed to compare predictions in all schemes that do not have unnaturally
large expansion coefficients. A concrete prescription for eliminating the
unnatural schemes... | 1994-07-20 | 2009-10-28 | [
"hep-ph"
] | Piotr A. Raczka |
hep-ph/9407333 | Three generation vacuum oscillations and the solar neutrino problem | We investigate the solar neutrino problem in the scenario of three generation
neutrino oscillation hypothesis, taking into account other phenomenological
constraints to the neutrino mixing and mass parameters. | 1994-07-19 | 2009-09-25 | [
"hep-ph"
] | M. M. Guzzo, O.L.G. Peres, V. Pleitez and R. Zukanovich Funchal |
hep-ph/9407334 | "TRIVIALITY" MADE EASY: the real (lambda Phi^4)_4 story | The real meaning of `triviality' of (lambda Phi^4)_4 theory is outlined.
Assuming `triviality' leads to an effective potential that is just the
classical potential plus the zero-point energy of the free-field fluctuations.
This V_{eff} gives spontaneous symmetry breaking. Its proper renormalization
has the consequence ... | 1994-07-19 | 2007-05-23 | [
"hep-ph",
"hep-lat",
"hep-th"
] | M. Consoli and P.M. Stevenson |
hep-ph/9407318 | Testing J/psi Production and Decay Properties in Hadronic Collisions | The polar and azimuthal angular distributions for the lepton pair arising
from the decay of a J/psi meson produced at transverse momentum p_T balanced by
a photon [or gluon] in hadronic collisions are calculated in the color singlet
model (CSM). It is shown that the general structure of the decay lepton
distribution is... | 1994-07-19 | 2009-10-28 | [
"hep-ph"
] | C.S.Kim and E. Mirkes |
hep-ph/9407322 | Cosmological Constraints on the Scale of Supersymmetry Breaking | We consider the cosmological and astrophysical constraints on the decay of
massive $E_8 \times E_8^\prime$ superstring axions associated with the hidden
sector. We find that decay lifetimes greater than 1 s are ruled out by limits
from nucleosynthesis, by limits on the distortion of the cosmic microwave and
gamma ray b... | 1994-07-19 | 2009-10-28 | [
"hep-ph",
"astro-ph",
"hep-th"
] | Raghavan Rangarajan |
hep-ph/9407325 | Clan Structure Analysis and Rapidity Gap Probability | Clan structure analysis in rapidity intervals is generalized from negative
binomial multiplicity distribution to the wide class of compound Poisson
distributions. The link of generalized clan structure analysis with correlation
functions is also established. These theoretical results are then applied to
minimum bias ev... | 1994-07-19 | 2009-09-25 | [
"hep-ph"
] | S. Lupia, A. Giovannini and R. Ugoccioni |
hep-ph/9407335 | Radiative Corrections to P-Levels in the Two-Body QED Problem | The physical origin of the $m\alpha^5$ radiative corrections to $P$-levels in
the two-body QED problem is elucidated. Then we demonstrate that the next
order, $m\alpha^6$, corrections to those levels are due to the anomalous
magnetic moment only. | 1994-07-19 | 2009-10-28 | [
"hep-ph"
] | M. I. Eides, I. B. Khriplovich and A. I. Milstein |
hep-ph/9407326 | Dynamical Scenarios for $SU(2)_c$ Symmetric New Physics Interactions | We study a picture of effective interactions among the $W$ and Higgs bosons
which is consistent with the precision tests at present energies, and at the
same time allows for large observable New Physics (NP) effects in the bosonic
sector. Toy dynamical models containing new heavy particles are used to
indicate how such... | 1994-07-19 | 2011-07-19 | [
"hep-ph"
] | G.J. Gounaris, F.M. Renard and G. Tsirigoti |
hep-ph/9407329 | Exact Multiparticle Amplitudes at Threshold in $\phi^4$ Theories with
Softly Broken $O(\infty)$ Symmetry | We consider the problem of multiparticle production at threshold in a
$\phi^4$-theory with an $O(N_1$$+$$N_2)$ symmetry softly broken down to
$O(N_1)\times O(N_2)$ by nonequal masses. We derive the set of recurrence
relations between the multiparticle amplitudes which sums all relevant diagrams
with arbitrary number of... | 1994-07-19 | 2009-10-28 | [
"hep-ph"
] | Minos Axenides, Andrei Johansen and Yuri Makeenko |
hep-ph/9407323 | Constraints on Baryogenesis from the Decay of Superstring Axions | We calculate the dilution of the baryon-to-photon ratio by the decay of
superstring axions. We find that the dilution is of the order of $10^7$. We
review several models of baryogenesis and show that most of them can not
tolerate such a large dilution. In particular, only one current model of
electroweak baryogenesis p... | 1994-07-19 | 2010-11-01 | [
"hep-ph"
] | Raghavan Rangarajan |
hep-ph/9407331 | Experimental signatures of a massive mirror photon | There has been some speculation about the possible existence of a second
photon which only couples to ordinary matter through mixing of the gauge
kinetic terms. If the exotic photon is massless, then the principle
phenomenological effect of the kinetic mixing is to give the mirror particles
small electric charges (mini... | 1994-07-19 | 2008-02-03 | [
"hep-ph"
] | R. Foot |
hep-ph/9407332 | Multiplicity Distributions and Rapidity Gaps | I examine the phenomenology of particle multiplicity distributions, with
special emphasis on the low multiplicities that are a background in the study
of rapidity gaps. In particular, I analyze the multiplicity distribution in a
rapidity interval between two jets, using the HERWIG QCD simulation with some
necessary mod... | 1994-07-19 | 2009-10-28 | [
"hep-ph"
] | Jon Pumplin |
hep-ph/9407330 | Heavy Quark Effective Theory, Interpolating Fields and Bethe-Salpeter
Amplitudes | We use the LSZ reduction theorem and interpolating fields, alongwith the
heavy quark effective theory, to investigate the structure of the
Bethe-Salpeter amplitude for heavy hadrons. We show how a simple form of this
amplitude, used extensively in heavy hadron decay calculations, follows
naturally upto $O(1/M)$ from th... | 1994-07-19 | 2011-07-19 | [
"hep-ph"
] | F. Hussain and G. Thompson |
hep-ph/9407324 | Naturally Light Leptoquarks | Light first generation leptoquarks are being hunted for in HERA and at FNAL
and there are various proposals for further searches in future machines. Such
leptoquarks are however problematic from a theoretical point of view: Low
energy precision measurements imply strong constraints on the couplings of the
leptoquarks, ... | 1994-07-19 | 2009-10-28 | [
"hep-ph"
] | Ernest Baver and Miriam Leurer |
hep-ph/9407328 | Limits on Associated Production of Visibly and Invisibly Decaying Higgs
Bosons from Z Decays | Many extensions of the standard electroweak model Higgs sector suggest that
the main Higgs decay channel is "invisible", for example, $h \to J J$ where $J$
denotes the majoron, a weakly interacting pseudoscalar Goldstone boson
associated to the spontaneous violation of lepton number. In many of these
models the Higgs b... | 1994-07-19 | 2009-09-25 | [
"hep-ph"
] | F. De Campos, M. A. Garcia-Jare\~NO, Anjan S. Joshipura, J. Rosiek, J.
W. F. Valle and D. P. Roy |
hep-ph/9407327 | Momentum Dependent Vertices $\sigma \gamma \gamma$, $\sigma \rho \gamma$
and $\sigma \rho \rho$ : The NJL Scalar Hidden by Chiral Symmetry | We calculate the momentum dependence of three particle vertices $\sigma
\gamma \gamma$, $\sigma \rho \gamma$ and $\sigma \rho \rho$ in the context of a
Nambu Jona Lasinio type model. We show how they influence the processes $\gamma
\gamma \rightarrow \sigma \rightarrow \pi \pi$, $\rho \rightarrow \gamma
\sigma$ and $\g... | 1994-07-19 | 2015-06-25 | [
"hep-ph"
] | B. Bajc, A.H. Blin, B. Hiller, M.C. Nemes and M. Rosina |
hep-ph/9407315 | Convolution Model for the Structure Functions of the Nucleon | We start from an MIT-bag model calculation which provides information about
the constituent quark distributions in the nucleon. The constituent quarks,
however, are themselves considered as complex objects whose partonic
substructure is resolved in deep inelastic scattering. This gives rise to
structure functions of th... | 1994-07-18 | 2009-09-25 | [
"hep-ph",
"nucl-th"
] | J. Keppler and H.M. Hofmann (University of Erlangen, Germany) |
hep-ph/9407320 | Photon Structure: QCD Treatment and Parton Densities | The QCD treatment of the photon structure beyond the leading order is
discussed with emphasis on a proper choice of the factorization scheme and/or
the boundary conditions. Recent parametrizations of the photon's parton content
are examined and compared. The sensitivity of the photon structure function on
the QCD scale... | 1994-07-18 | 2007-05-23 | [
"hep-ph"
] | Andreas Vogt (Univ. Munich) |
hep-ph/9407321 | Pion Mass Effects in the Large $N$ Limit of $\chiPT$ | We compute the large $N$ effective action of the $O(N+1)/O(N)$ non-linear
sigma model including the effect of the pion mass to order
$m^2_{\pi}/f_{\pi}^2$. This action is more complex than the one corresponding
to the chiral limit not only because of the pion propagators but also because
chiral symmetry produce new int... | 1994-07-18 | 2019-08-17 | [
"hep-ph"
] | A.Dobado, J.Morales |
hep-ph/9407312 | Possibility of $m_t < M_W + m_b$ for SUSY-type of Two Higgs Doublet
Model | Allowing for realistic uncertainties in input parameters, we demonstrate that
the present CLEO limit of $5.4\times 10^{-4}$ for inclusive $b\to s\gamma$
decay does not yet fully exclude the $t\to bH^+$ decay possibility in
supersymmetric type of two Higgs doublet models. Combined with direct search
for $t\to bH^+$ via ... | 1994-07-18 | 2009-09-25 | [
"hep-ph"
] | Wei-Shu Hou, Ern-Bin Tsai, Chao-Qiang Geng and Paul Turcotte |
hep-ph/9407313 | A New Dimensionally Reduced Effective Action for QCD at High Temperature | New terms are derived for the three-dimensional effective action of the
static modes of pure gauge SU(N) at high temperature. In previous works,
effective vertices have been obtained by evaluating diagrams involving 2, 3 or
4 external static gluons with one internal nonstatic loop. I take a somewhat
different approach ... | 1994-07-18 | 2010-11-01 | [
"hep-ph"
] | Scott Chapman |
hep-ph/9407314 | Shell model versus liquid drop model for strangelets | An ansatz for the curvature contribution to the density of states for massive
quarks in a bag is given and shown to reproduce exact mode-filling
calculations. A mass-formula for spherical lumps of 3-flavor quark matter is
derived self-consistently from an asymptotic expansion within the MIT bag
model, taking into accou... | 1994-07-18 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | Jes Madsen |
hep-ph/9407316 | An Overview of the $\epsilon$ Expansion and the Electroweak Phase
Transition | Talk presented at the NATO Advanced Workshop on Electroweak Physics and the
Early Universe: Sintra, Portugal, 1994. I summarize work done with Larry Yaffe
on applying $\epsilon$ expansion techniques to the electroweak phase
transition. | 1994-07-18 | 2007-05-23 | [
"hep-ph"
] | Peter Arnold |
hep-ph/9407317 | Determination of Leptoquark Properties in Polarized $e\gamma$ Collisions | We study leptoquark production using polarized $e\gamma$ colliders for the
center of mass energies $\sqrt s=500$~GeV and 1~TeV. We show that using
polarization asymmetries the ten different types of leptoquarks listed by
Buchm\"uller, R\"uckl and Wyler can be distinquished from one another for
leptoquark masses essenti... | 1994-07-18 | 2009-10-28 | [
"hep-ph"
] | M. A. Doncheski and S. Godfrey |
hep-ph/9407319 | Pentaquark Search with Energetic Hadron Beams | The strange-anticharmed Pentaquark is a uud(cbar)s or udd(cbar)s five-quark
baryon that is expected to be either a narrow resonance, or possibly even
stable against strong decay. We describe this hyperon here; its structure,
binding energy and lifetime, resonance width, production mechanisms and decay
modes. We estimat... | 1994-07-18 | 2008-02-03 | [
"hep-ph"
] | M. A. Moinester, D. Ashery, L. G. Landsberg, H. J. Lipkin |
hep-ph/9407311 | Hints of New Flavor Physics at LEP? | A massive gauge boson coupling to the third family but not lighter families
mixes with the $Z$. The $Z$ partial width to $b\overline{b}$ increases, the
$\tau$ asymmetry parameter increases, the invisible width of the $Z$ decreases,
and $\alpha_s(m_Z)$ decreases, all in a manner consistent with present data. | 1994-07-17 | 2010-11-01 | [
"hep-ph"
] | B. Holdom |
hep-ph/9407309 | Baryons with Two Heavy Quarks as Solitons | Using the chiral soliton model and heavy quark symmetry we study baryons
containing two heavy quarks. If there exists a stable (under strong
interactions) meson consisting of two heavy quarks and two light ones, then we
find that there always exists a state of this meson bound to a chiral soliton
and to a chiral anti-s... | 1994-07-16 | 2009-12-30 | [
"hep-ph"
] | Myron Bander and Anand Subbaraman |
hep-ph/9407310 | Determination of QCD Condensates Without Hadronic Spectra | The bounds on the values of gluon, four-quark and quark-gluon condensates are
derived from the requirement of consistency of the sum rules for various
correlators of the hybrid current $a_{\mu}=g\bar d\gamma_{\rho}\tilde
G_{\rho\mu}u$. The upper bound for the gluon condensate is found to be less
then twice its standard... | 1994-07-16 | 2009-10-28 | [
"hep-ph"
] | Ketino Aladashvili and Murman Margvelashvili |
hep-ph/9407300 | The Inclusive Semileptonic Decay Lepton Spectrum from $B \to X e
\overline{\nu}$ | In this talk, we review the QCD calculation of the lepton spectrum from
inclusive semileptonic $B$ decay. We compare this prediction to that of the
ACCMM model. This latter work was done in collaboration with Csaba Csaki. | 1994-07-15 | 2015-06-25 | [
"hep-ph"
] | Lisa Randall |
hep-ph/9407305 | The Skyrmion limit of the Nambu--Jona-Lasinio soliton | The special role of the isoscalar mesons ($\sigma$ and $\omega$) in the NJL
soliton is discussed. Stable soliton solutions are obtained when the most
general ansatz compatible with vanishing grand spin is assumed. These solutions
are compared to soliton solutions of a purely pseudoscalar Skyrme type model
which is rela... | 1994-07-15 | 2009-09-25 | [
"hep-ph"
] | U. Z\"uckert, R. Alkofer, H. Reinhardt and H. Weigel |
hep-ph/9407301 | CP Violating Effects in $e^+e^-\rightarrow ZH$ and Their Optimization | We consider the possibilities of testing CP conservation in the process
$e^+e^- \rightarrow ZH$. The easiest is to measure the forward-backward
asymmetry of the $Z$ boson, a nonzero value of which signals CP violation. The
effects of CP violation are predicted in the two Higgs doublet model. We show
here that a choise ... | 1994-07-15 | 2010-01-15 | [
"hep-ph"
] | J.P. Ma & B.H.J. McKellar |
hep-ph/9407307 | Valencia 93: The Summary of Particle Theory | The International School on Cosmological Dark Matter held in Valencia in the
fall of 1993 was devoted to the interplay of cosmology and particle physics,
with the obvious emphasis on the Dark Matter issue. Here I present the expanded
version of my summary talk regarding the particle physics theory part of the
School. | 1994-07-15 | 2007-05-23 | [
"hep-ph"
] | Goran Senjanovi'{c} |
hep-ph/9407308 | Non-resonant diagrams in radiative four-fermion processes | The complete tree level cross section for $e^+e^- \to e^- \bar\nu_e u \bar{d}
\gamma$ is computed and discussed in comparison with the cross sections for
$e^+e^- \to e^- \bar\nu_e u \bar{d} $ and $e^+e^- \to \bar{u} d u \bar{d}$.
Event generators based on the GRACE package for the non-radiative and radiative
case are p... | 1994-07-15 | 2009-10-28 | [
"hep-ph"
] | J. Fujimoto, T. Ishikawa, S. Kawabata, Y. Kurihara, Y. Shimizu D.
Perret-Gallix |
hep-ph/9407306 | Semiglobal Alice Strings | We show that in certain theories with topologically trivial quotient space of
spontaneously broken gauge symmetry there can exist topologically stable
strings that carry nonabelian gauge flux. These objects result from the
``accidental'' global degeneracy of the vacuum which makes it topologically
nontrivial.
In part... | 1994-07-15 | 2010-11-01 | [
"hep-ph"
] | G. Dvali and G. Senjanovi'{c} |
hep-ph/9407303 | Effective Lagrangian Approach to Weak Radiative Decays of Heavy Hadrons | Motivated by the observation of the decay $\bar{B}\to \bar{K}^*\gamma$ by
CLEO, we have systematically analyzed the two-body weak radiative decays of
bottom and charmed hadrons. There exist two types of weak radiative decays: One
proceeds through the short-distance $b\to s\gamma$ transition and the other
occurs through... | 1994-07-15 | 2011-07-19 | [
"hep-ph"
] | Hai-Yang Cheng, Chi-Yee Cheung, Guey-Lin Lin, Y.C. Lin, Tung-Mow Yan,
and Hoi-Lai Yu |
hep-ph/9407304 | On the analytic properties of chiral solitons in the presence of the
$\omega$--meson | A thorough study is performed of the analytical properties of the fermion
determinant for the case that the time components of (axial) vector fields do
not vanish. For this purpose the non--Hermitian Euclidean Dirac Hamiltonian is
generalized to the whole complex plane. The Laurent series are proven to reduce
to Taylor... | 1994-07-15 | 2009-09-25 | [
"hep-ph"
] | H. Weigel, U. Z\"uckert, R. Alkofer, and H. Reinhardt |
hep-ph/9407302 | Random and Correlated Phases of Primordial Gravitaional Waves | The phases of primordial gravity waves is analysed in detail within a quantum
mechanical context following the formalism developed by Grishchuk and Sidorov.
It is found that for physically relevant wavelengths both the phase of each
individual mode and the phase {\it difference} between modes are randomly
distributed. ... | 1994-07-15 | 2009-10-28 | [
"hep-ph"
] | Kin-Wang Ng and A. D. Speliotopoulos |
hep-ph/9407293 | Non-leading Logarithms in Principal Value Resummation | We apply the method of principal value resummation of large
momentum-dependent radiative corrections to the calculation of the Drell Yan
cross section. We sum all next-to-leading logarithms and provide numerical
results for the resummed exponent and the corresponding hard scattering
function. | 1994-07-14 | 2014-11-17 | [
"hep-ph",
"hep-th"
] | L. Alvero and H. Contopanagos |
hep-ph/9407296 | How to Measure Kinetic Energy of the Heavy Quark Inside B Mesons? | We discuss how one can determine the average kinetic energy of the heavy
quark inside heavy mesons from differential distributions in $B$ decays. A new,
so-called third, sum rule for the $b\rightarrow c$ transition is derived in the
small velocity (SV) limit. Using this sum rule and the existing data on the
momentum de... | 1994-07-14 | 2009-10-28 | [
"hep-ph"
] | I. Bigi, A. Grozin, M. Shifman, N. Uraltsev and A. Vainshtein |
hep-ph/9407291 | Decoupling of the $\epsilon$-scalar mass in softly broken supersymmetry | It has been shown recently that the introduction of an unphysical
$\epsilon$-scalar mass $\tilde{m}$ is necessary for the proper renormalization
of softly broken supersymmetric theories by dimensional reduction ($\drbar$).
In these theories, both the two-loop $\beta$-functions of the scalar masses and
their one-loop fi... | 1994-07-14 | 2009-12-30 | [
"hep-ph"
] | Ian Jack, D. R. Timothy Jones, Stephen P. Martin, Michael T. Vaughn
and Youichi Yamada |
hep-ph/9407295 | Theoretical Predictions for Pion Polarizabilities | The polarizabilities of the pion have been predicted in several different
theoretical frameworks. The status of these is reviewed. | 1994-07-14 | 2008-02-03 | [
"hep-ph"
] | J. Portoles and M.R. Pennington (Durham University) |
hep-ph/9407297 | CEBAF at Higher Energies | This report summarizes topics in hadron spectroscopy and production which
could be addressed at CEBAF with an energy upgrade to $E_\gamma=8$ GeV and
beyond. The topics discussed include conventional meson and baryon
spectroscopy, spectroscopy of exotica (especially molecules and hybrids), CP
and CPT tests using $\phi$ ... | 1994-07-14 | 2009-09-25 | [
"hep-ph"
] | T.Barnes and J.Napolitano |
hep-ph/9407299 | High energy Scattering in 2+1 QCD: A Dipole Picture | A dipole picture of high energy scattering is developed in the 2+1
dimensional QCD, following Mueller. A generalized integral equation for the
dipole density with a given separation and center of mass position is derived,
and meson-meson non-forward scattering amplitude is therefore calculated. We
also calculate the am... | 1994-07-14 | 2016-08-24 | [
"hep-ph",
"hep-th"
] | Miao Li and Chung-I Tan |
hep-ph/9407292 | Some Remarks on the Matching Conditions | We analyze the matching conditions to determine the values that the ${\cal
O}(p^4)$ coefficients of an Effective Chiral Lagrangian take in the Standard
Model in the limit of a large Higgs mass, pointing out a number of subtleties
that appear to have gone unnoticed previously. We apply the resulting Effective
Chiral Lag... | 1994-07-14 | 2009-10-28 | [
"hep-ph"
] | D.Espriu and J.Matias |
hep-ph/9407294 | CP violation in the cubic coupling of neutral gauge bosons | We investigate the CP violating form factor of the ZZZ$ and $ZZ\gamma$
vertices in the pair production of $Z^0$ bosons. Useful observables in
azimuthal distributions are constructed to probe $CP$ nonconservation which may
originate from these vertices. A simple Two Higgs Model of $CP$ violation is
used as an illustrati... | 1994-07-14 | 2009-09-25 | [
"hep-ph"
] | Darwin Chang, Wai-Yee Keung and Palash Pal |
hep-ph/9407298 | Diphoton Production at Hadron Colliders and New Contact Interactions | We explore the capability of the Tevatron and LHC to place limits on the
possible existence of flavor-independent $q \bar q \gamma\gamma$ contact
interactions which can lead to an excess of diphoton events with large
invariant masses. Assuming no departure from the Standard Model is observed, we
show that the Tevatron ... | 1994-07-14 | 2009-10-28 | [
"hep-ph"
] | Thomas G. Rizzo |
hep-ph/9407290 | Gluino Production in Electron-Positron Annihilation | We discuss the pair production of gluinos in electron-positron annihilation
at LEP, in a model with soft supersymmetry breaking, allowing for mixing
between the squarks. In much of the parameter space of the Minimal
Supersymmetric Model (MSSM) the cross section corresponds to a $Z$ branching
ratio above $10^{-5}$, even... | 1994-07-14 | 2009-10-28 | [
"hep-ph"
] | Bjarte Kileng and Per Osland |
hep-ph/9407285 | A SUSY SO(10) Model with Large $tan \beta$ | We construct a supersymmetric SO(10) model with the asymptotic relation
tan$\beta \simeq m_t/m_b$ automatically arising from its structure. The model
retains the significant Minimal Supersymmetric Standard Model predictions for
$sin^2 \theta_w$ and $\alpha_s$ and contains an automatic $Z_2$ matter parity.
Proton decay ... | 1994-07-13 | 2008-11-26 | [
"hep-ph"
] | G. Lazarides and C. Panagiotakopoulos |
hep-ph/9407287 | Determination of $\alpha_s$ and the Nucleon Spin Decomposition Using
Recent Polarized Structure Function Data | New data on polarized $\mu-p$ and $e-p$ scattering permit a first
determination of $\alpha_s$ using the Bjorken sum rule, as well as higher
precision in determining the nucleon spin decomposition. Using perturbative QCD
calculations to $O(\alpha_s^4)$ for the non-singlet combination of structure
functions, we find $\al... | 1994-07-13 | 2009-09-25 | [
"hep-ph"
] | John Ellis and Marek Karliner |
hep-ph/9407288 | A Further Study of $CP$ Asymmetries in Pure Penguin-induced
$B^{\pm}_{u}$ Decays | We make a further study of $CP$ asymmetries in the pure penguin-induced decay
modes $B^{-}_{u}\rightarrow K^{(*)0} + K^{(*)-}$ and $B^{-}_{u} \rightarrow
\bar{K}^{(*)0} + (\pi^{-}, \rho^{-}, a^{-}_{1})$ by using the two-loop
renormalization-group-improved effective Hamiltonian and factorization
approximation. Different... | 1994-07-13 | 2010-11-01 | [
"hep-ph"
] | Dongsheng DU and Zhi-zhong XING |
hep-ph/9407289 | Test of $CPT$ Symmetry in $CP$-violating $B$ Decays | Considering that the existing experimental limit for $CPT$ violation is still
poor, we explore various possible ways to test $CPT$ symmetry in $CP$-violating
$B$ decays at $e^{+}e^{-}$ $B$ factories. We find that it is difficult to
distinguish between the effect of direct $CP$ violation and that of $CPT$
violation in t... | 1994-07-13 | 2009-12-30 | [
"hep-ph"
] | Zhi-zhong Xing |
hep-ph/9407284 | Anomalous Generation Numbers in SO(10) and Supersymmetric SO(10)
Unification Theories | One of the interesting features in unification models and supersymmetric
unification models is that the chiral states of quarks and leptons in a family
including a right-handed neutrino can be fitted neatly into a fundamental
spinor representation (f.s) of dimension 16 for the SO(10) gauge group.
However, it is shown i... | 1994-07-13 | 2008-02-03 | [
"hep-ph"
] | Huazhong Zhang |
hep-ph/9407286 | MSSM and Large $tan\beta$ from SUSY Trinification | We construct a supersymmetric model based on the semi-simple gauge group
$SU(3)_c \times SU(3)_L \times SU(3)_R$ with the relation $tan\beta \simeq
m_t/m_b$ automatically arising from its structure. The model below a scale
$\sim 10^{16}$ GeV gives naturally rise just to the minimal supersymmetric
standard model and the... | 1994-07-13 | 2008-11-26 | [
"hep-ph"
] | G. Lazarides and C. Panagiotakopoulos |
hep-ph/9407277 | Accuracies of K_{e4} Parameters at Daphne | We estimate the experimental accuracies to which the Ke4 parameters will be
measured at DAPHNE. We consider the accuracies obtainable using asymmetries,
and the maximum likelihood method. We find the current determinations of the
relevant parameters will be improved by a factor of five to ten after a year of
running at... | 1994-07-12 | 2007-05-23 | [
"hep-ph"
] | Marc Baillargeon, Paula Franzini |
hep-ph/9407280 | Fluctuations in the Mixed Event Technique | A method for an evaluation of fluctuations in the mixed event technique is
proposed. It is shown, that, generally, the magnitude of the fluctuations is
proportional to $N^{3/4}$, where $N$ is the number of produced events, which
should be compared with $N^{1/2}$ for the case of independent events. The
formula eligible ... | 1994-07-12 | 2007-05-23 | [
"hep-ph"
] | Sergei Voloshin |
hep-ph/9407283 | On the Derivative Expansion at Finite Temperature | In this short note, we indicate the origin of nonanalyticity in the method of
derivative expansion at finite temperature and discuss some of its
consequences. | 1994-07-12 | 2009-10-28 | [
"hep-ph"
] | Ashok Das and Marcelo Hott |
hep-ph/9407279 | Nonperturbative effects in low energy effective theories of QCD | In this talk I concentrate on the role of chiral symmetry realisation by
spin-1 fields in the low energy QCD effective lagrangian. I assume that chiral
symmetry is nonlinearly realised and that spin-1 fields transform homogeneously
under chiral rotations, which is in sharp contrast to previous works where the
$\rho$ an... | 1994-07-12 | 2007-05-23 | [
"hep-ph"
] | D. Kalafatis |
hep-ph/9407276 | Top Quark Mass and Supersymmetry | We summarize the expectations for the top quark mass in supersymmetric models
and discuss the potential implications of its value measured by the CDF group
in Fermilab. | 1994-07-12 | 2009-10-28 | [
"hep-ph"
] | Stefan Pokorski |
hep-ph/9407278 | Energy-Charge Correlation in the $\pi^+\pi^-\pi^0$ Decay of $K_L$ and of
Tagged Neutral Kaons | We relate the asymmetries in the charged pions energy in the decay into
$\pi^+\pi^-\pi^0$ of $K_L$ and of the tagged neutral kaons. The former
asymmetry is a given combination of $\Re(\epsilon)$, $\Im(\epsilon)$, and
$|\epsilon'|$. Moreover, the non-violating CP asymmetry allows a test for the
$\chi$PT predictions with... | 1994-07-12 | 2009-10-28 | [
"hep-ph"
] | F. Buccella, O. Pisanti, and F. Sannino |
hep-ph/9407275 | Spin Effects in pp-scattering at difraction range and RHIC energies | The spin effects in nucleon-nucleon scattering are calculated in the
framework of the dynamic model taking into account interactions at large
distances and the strong form factors; the model factorization of the $NN$
amplitude into the spin-dependent hadron-pomeron vertex and high-energy
spinless pomeron is obtained. T... | 1994-07-12 | 2009-09-25 | [
"hep-ph"
] | S.V.Goloskokov, O.V.Selyugin |
hep-ph/9407281 | Aspects of Supersymmetry at LEP II | We give a short introduction to the concept of low energy supersymmetric
models and their phenomenological predictions. In view of the future LEP II
results we have to parametrize these predictions in a model independent way
without too many simplifying assumptions. The study must therefore include
models with {\it non... | 1994-07-12 | 2009-10-28 | [
"hep-ph"
] | D. Matalliotakis and H.P. Nilles |
hep-ph/9407274 | The Geometrical Color Optics Of Coherent High Energy Processes | CONTENTS. 1.Introduction, 1.1 QCD ideas to be tested; 2. Coherence phenomena
in QED, 2.1 Charge transparency, 2.2 Charge filtering, 2.3 Charge opacity; 3.
Color transparency in perturbative QCD, 3.1 Coherence length in QCD, 3.2
Bjorken scaling for deep inelastic processes, 3.3 Hard Coherent Diffraction
{}From Nucleons ... | 1994-07-12 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | L.L.Frankfurt, G.A. Miller, M. Strikman |
hep-ph/9407282 | Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of
Azimuthal Particle Distributions | We propose a new method to study transverse flow effects in relativistic
nuclear collisions by Fourier analysis of the azimuthal distribution on an
event-by-event basis in relatively narrow rapidity windows. The distributions
of Fourier coefficients provide direct information on the magnitude and type of
flow. Directiv... | 1994-07-12 | 2011-05-05 | [
"hep-ph"
] | S. Voloshin and Y. Zhang |
hep-ph/9407264 | New Predictive Framework for Fermion Masses in SUSY SO(10) | We present a new predictive approach based on SUSY $SO(10)$ theory. The
inter-family hierarchy is first generated in the sector of hypothetical
superheavy fermions and then transfered inversely to ordinary quarks and
leptons by means of the universal seesaw mechanism. The obtained mass matrices
are simply parametrized ... | 1994-07-11 | 2009-09-25 | [
"hep-ph"
] | Zurab G. Berezhiani |
hep-ph/9407272 | Consequences of Nuclear Shadowing for Heavy Quarkonium Production in
Hadron-Nucleus Interactions | We study nuclear shadowing in $J/\psi$ and $\Upsilon$ production in
hadron-nucleus interactions and in nucleus-nucleus collisions at the
Relativistic Heavy Ion Collider and the Large Hadron Collider. %We define the
regions in $x_f$ where nuclear shadowing begins %to set in for \jp\ and \up. As
a consequence of the pert... | 1994-07-11 | 2009-09-25 | [
"hep-ph"
] | S. Liuti and R. Vogt |
hep-ph/9407265 | Majoron Decay in Matter | It is well known that the matter can significantly alter the picture of
neutrino oscillation \cite{W} or neutrino decay \cite{BV}. Here we show that
the presence of dense matter induces also the decay of {\it massless} majoron,
a Goldstone boson associated with the spontaneous lepton number violation, into
a couple of ... | 1994-07-11 | 2009-10-28 | [
"hep-ph"
] | Zurab G. Berezhiani and Anna Rossi |
hep-ph/9407267 | Non-Perturbative Analysis of the Coleman-Weinberg Phase Transition | We perform a non-perturbative study of the Coleman-Weinberg phase transition
in scalar QED. Our method permits a consistent treatment of the effective
potential near the origin, a region not accessible to perturbation theory. As a
result, we establish reliably the first order character of the phase transition
for arbit... | 1994-07-11 | 2009-10-28 | [
"hep-ph"
] | D. Litim, C. Wetterich and N. Tetradis |
hep-ph/9407270 | Predictions of noncommutative space-time | An unified structure of noncommutative space-time for both gravity and
particle physics is presented. This gives possibilities of testing the idea of
noncommutative space-time at the currently available energy scale. There are
several arguments indicating that noncommutative space-time is visible already
at the electro... | 1994-07-11 | 2008-02-03 | [
"hep-ph",
"gr-qc",
"hep-th"
] | Nguyen Ai Viet |
hep-ph/9407271 | Perturbative QCD Corrections to the $Z$ Boson Width and the Higgs Decay
Rate | Radiative QCD corrections significantly influence the theoretical predictions
for the decay rates of the $Z$ and the Higgs boson. The status of the QCD
calculations to the hadronic $Z$ width is reviewed. The role of mass
corrections from bottom quark final states is emphasized. An estimate of the
theoretical uncertaint... | 1994-07-11 | 2007-05-23 | [
"hep-ph"
] | K.G. Chetyrkin, J.H. K\"uhn, A. Kwiatkowski |
hep-ph/9407269 | Higgs and Top Quark Masses in the Standard Model without Elementary
Higgs Boson | In this short note I present a simple calculation of the top quark and Higgs
masses, based on the idea that in the standard model without elementary Higgs,
the fact that the $U(1)_Y$ coupling becomes of the order of unity at the Landau
scale $\lambda$ leads to spontaneous symmetry breaking and generation of
masses. | 1994-07-11 | 2009-10-28 | [
"hep-ph"
] | V. Gribov |
hep-ph/9407268 | Renormalon Singularities of the QCD Vacuum Polarization Function to
Leading Order in $1/N_{f}$ | We explicitly determine the residues and orders of all the ultra-violet (UV)
and infra-red (IR) renormalon poles in the Borel plane for the QCD vacuum
polarization function (Adler D-function), to leading order in an expansion in
the number of quark flavours, $N_{f}$. The singularity structure is precisely
as anticipate... | 1994-07-11 | 2009-10-28 | [
"hep-ph"
] | C.N. Lovett-Turner and C.J. Maxwell |
hep-ph/9407273 | Constraints on SUSY-GUT unification from $b\to s\gamma$ decay | The top-quark Yukawa infrared fixed-point solution of the renormalization
group equations, with minimal supersymmetry and GUT unification, defines a
low-energy spectrum of supersymmetric particle masses in terms of a few
GUT-scale parameters assuming universal boundary conditions. We give
predictions in this model for ... | 1994-07-11 | 2009-09-25 | [
"hep-ph"
] | V. Barger, M. S. Berger, P. Ohmann, and R. J. N. Phillips |
hep-ph/9407266 | Model independent QED corrections to the process $ep \longrightarrow eX$ | We give an exhaustive presentation of the semi-analytical approach to the
model independent leptonic QED corrections to deep inelastic neutral current
lepton-nucleon scattering. These corrections include photonic bremsstrahlung
from and vertex corrections to the lepton current of the order ${\cal
O}(\alpha)$ with soft ... | 1994-07-11 | 2009-10-28 | [
"hep-ph"
] | Arif Akhundov, Dima Bardin, Lida Kalinovskaya, Tord Riemann |
hep-ph/9407263 | Semileptonic Decays of Heavy to Light Mesons from an Mit Bag Model | Using the (modified) MIT bag model we calculated formfactors and decay widths
for pseudoscalar - pseudoscalar and pseudoscalar - vector semileptonic decays
of heavy to light mesons. We discuss the physical phenomena which are important
in these processes and their influence on the measurable quantities. Our
results are... | 1994-07-11 | 2011-07-19 | [
"hep-ph"
] | M. Sadzikowski |
hep-ph/9407261 | On the scheme dependence of the Electroweak radiative corrections | We study the scheme dependence of the two-loop expression for the
$\rho$-parameter of the Standard Model in the heavy $t$-quark mass limit $m_{t}
\gg m_{w}$. In the $\ms$-scheme the two-loop electroweak correction to the
${\cal O}(m_{t}^{2})$ term in $\dr$ is found greater than the QCD
$\as$-correction. | 1994-07-09 | 2009-12-30 | [
"hep-ph"
] | A.I.Bochkarev and R.S.Willey |
hep-ph/9407262 | Strangeness Production in pp,pA,AA Interactions at SPS Energies.HIJING
Approach | In this report we have made a systematic study of strangeness production in
proton-proton(pp),proton-nucleus(pA) and nucleus- nucleus(AA) collisions at
CERN Super Proton Synchroton energies, using$\,\,\, HIJING\,\,\, MONTE
\,\,\,CARLO \,\,\,MODEL $ \\ (version $HIJ.01$). Numerical results for mean
multiplicities of neu... | 1994-07-08 | 2019-08-17 | [
"hep-ph"
] | V.Topor Pop, A.Andrighetto, M.Morando, F.Pellegrini, R.A.Ricci,
G.Segato |
hep-ph/9407260 | Strong $\Lambda \pi$ Phase Shifts for CP Violation in Weak $\Xi
\rightarrow \Lambda \pi$ Decay | Strong interaction $\Lambda\pi$ phase shifts relevant for the weak
nonleptonic decay $\Xi \rightarrow \Lambda \pi$ are calculated using baryon
chiral perturbation theory. We find in leading order that the S-wave phase
shift vanishes and the $J={1 \over 2}$ P-wave phase shift is $-1.7 ^{\rm o} $.
The small phase shifts ... | 1994-07-08 | 2010-11-01 | [
"hep-ph",
"nucl-th"
] | Ming Lu, Martin J. Savage and Mark B. Wise |
hep-ph/9407255 | Maximal $CP$ violation in the Higgs Sector and its Effect on the $\rho$
Parameter | We study the conditions of maximal $CP$ violation in the neutral Higgs mass
matrix of the two Higgs doublet model. We get fixed values of $\tan\b$ and
constraints on the Higgs potential parameters. Two neutral Higgs scalars are
constrained to be lighter than the charged Higgs scalar and these two Higgs
scalars are expe... | 1994-07-08 | 2010-11-01 | [
"hep-ph"
] | Grish C. Joshi, Masahisa Matsuda and Morimitsu Tanimoto |
hep-ph/9407259 | Phenomenology of a non-standard top quark Yukawa coupling | There are theoretical speculations that the top quark may have different
properties from that predicted by the standard model. We use an effective
Lagrangian technique to model such a non-standard top quark scenario and study
its effects on the electroweak baryogenesis, low and high energy physics. | 1994-07-08 | 2010-11-01 | [
"hep-ph"
] | X. Zhang, S.K. Lee, K. Whisnant and B.-L. Young |
hep-ph/9407258 | The Spin Structure of the Proton in a Non-relativistic Quark Model | The spin structure of the proton is investigated in the framework of an
extended quark potential model which in addition to the conventional
$3q$--structure also takes into account $(3q)(q\bar q)$--admixtures in the
proton wave function. For reasons of parity such admixtures contain an odd
orbital angular momentum thus... | 1994-07-08 | 2009-10-28 | [
"hep-ph",
"nucl-th"
] | J. Keppler and H.M. Hofmann (University of Erlangen, Germany) |
hep-ph/9407249 | Resummation of Perturbation Series in Non-Equilibrium Scalar Field
Theory | The general behaviour of perturbation series in non-equilibrium scalar field
theory is analysed in some detail, with a particular emphasis on the
``pathological terms'', generated by multiple products of $\delta$-functions.
Using an intuitive regularization method, it is shown that these terms give
large contributions ... | 1994-07-07 | 2016-09-01 | [
"hep-ph"
] | T. Altherr |
hep-ph/9407254 | Phenomenology of the Minimal Supergravity SU(5) Model | The minimal grand unified supergravity model is discussed. Requiring
radiative breaking of the electroweak gauge symmetry, the unification of b and
tau Yukawa couplings, a sufficiently stable nucleon, and not too large a relic
density of neutralinos produced in the Big Bang constrains the parameter space
significantly.... | 1994-07-07 | 2009-10-28 | [
"hep-ph"
] | M. Drees |
hep-ph/9407250 | Intrinsic Transverse Size Effect | Two recently proposed concepts to improve the perturbative calculation of
exclusive amplitudes, gluonic radiative corrections (Sudakov factor) and
confinement size effects (intrinsic transverse momentum) are combined to study
the neutron magnetic form factor in the space-like region. We find that nucleon
distribution a... | 1994-07-07 | 2009-09-25 | [
"hep-ph"
] | J. Bolz, R. Jakob, P. Kroll, M. Bergmann, N.G. Stefanis |
hep-ph/9407245 | Relativistic Oscillator Model and Delbr\"uck scattering | Elastic scattering of photons in a Lorentz-scalar potential via virtual
spin-zero particle-antiparticle pairs (`` Delbr\"uck scattering") is
considered. An analytic expression for the Delbr\"uck amplitude is found
exactly in case of an oscillator potential. General properties of the amplitude
and its asymptotics are di... | 1994-07-07 | 2009-10-28 | [
"hep-ph"
] | A.I. L'vov and A.I. Milstein |
hep-ph/9407256 | What Charm Can Tell Us About Beauty | A number of ways are reviewed in which the study of charmed particles can
answer corresponding questions about particles containing $b$ quarks. Topics
include the properties of resonances, the magnitude of decay constants, the
size of spin-dependent effects, and the hierarchy of lifetime differences. | 1994-07-07 | 2009-09-25 | [
"hep-ph"
] | J. Rosner (University of Chicago) |
hep-ph/9407251 | Implications of non-universality of soft terms in supersymmetric grand
unified theories | Most discussions of supersymmetric grand unified theories assume universality
of the soft supersymmetry breaking terms at the grand scale. We point out that
the behaviour of these theories might change significantly in the presence of
non--universal soft terms. Particularly in SO(10)--like models with a large
value of ... | 1994-07-07 | 2009-10-28 | [
"hep-ph"
] | D. Matalliotakis and H.P. Nilles |
hep-ph/9407257 | Our Present Understanding of CP Violation | If CP violation in the decays of neutral kaons is due to phases in the weak
couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix,
there are many other experimental consequences. Notable among these are
CP-violating rate asymmetries and triangle relations among decay rates in $B$
meson decays, w... | 1994-07-07 | 2009-09-25 | [
"hep-ph"
] | J. Rosner (University of Chicago) |
hep-ph/9407252 | Quantum Phenomenology for the Disoriented Chiral Condensate | We consider the quantum state describing theDisoriented Chiral Condensate
(DCC), which may be produced in high energy collisions. We show how a mean
field treatment of the quantum equations corresponding to the classical linear
sigma model leads to a squeezed state description of the pions emerging from
the DCC. We exa... | 1994-07-07 | 2009-10-28 | [
"hep-ph"
] | R. D. Amado and Ian I. Kogan |
hep-ph/9407248 | Solving the Cosmological Moduli Problem with Weak Scale Inflation | Many models of supersymmetry breaking involve particles with weak scale mass
and Planck mass suppressed couplings. Coherent production of such particles in
the early universe destroys the successful predictions of nucleosynthesis. We
show that this problem may be solved by a brief period of weak scale inflation.
Furthe... | 1994-07-07 | 2009-09-15 | [
"hep-ph",
"astro-ph"
] | Lisa Randall and Scott Thomas |
hep-ph/9407244 | A Dynamical Origin for the Top Mass | We describe a dynamical scheme by which isospin breaking feeds strongly into
the $t$ and $b$ masses and not into the $W$ and $Z$ masses. The third family
feels a new gauge interaction broken close to a TeV. | 1994-07-06 | 2009-10-28 | [
"hep-ph"
] | B. Holdom |
hep-ph/9407243 | CP Violation in Beauty Decays -- the Standard Model Paradigm of Large
Effects | The Standard Model contains a natural source for CP asymmetries in weak
decays, which is described by the KM mechanism. Beyond $\epsilon _K$ it
generates only elusive manifestations of CP violation in {\em light-}quark
systems. On the other hand it naturally leads to large asymmetries in certain
non-leptonic beauty dec... | 1994-07-06 | 2009-09-25 | [
"hep-ph"
] | I.I. Bigi |
hep-ph/9407240 | The pion-nucleon interaction as an effective field theory | After a brief survey of effective field theories, the linear sigma model is
discussed as a prototype of an effective field theory of the standard model
below the chiral-symmetry-breaking scale. Although it can serve as a toy model
for the pion-nucleon interaction, the linear sigma model is not a realistic
alternative t... | 1994-07-06 | 2011-04-15 | [
"hep-ph",
"nucl-th"
] | G. Ecker |
hep-ph/9407242 | Beauty Physics in the Next 15 Years -- an Itinerary for a Long Journey
towards an Essential Goal | After re-stating why beauty physics is so special and sketching its present
status I attempt to map out an itinerary for the next fifteen years. The basic
elements are listed for a research program that allows to define and probe the
KM unitarity triangle in a manner where the numerical uncertainties are reduced
to the... | 1994-07-06 | 2010-11-01 | [
"hep-ph"
] | I.I.Bigi |
hep-ph/9407237 | New Tensor Interactions and the $K_L$-$K_S$ Mass Difference | The minimal standard electroweak model yields approximately half the observed
value of the $K_L$-$K_S$ mass difference. Antisymmetric tensor fields
incorporated into the standard model can provide the rest $0.5\times(\Delta
m_{LS})_{\exp}$. The effective lepton--lepton, quark--lepton and quark--quark
tensor interaction... | 1994-07-06 | 2009-09-25 | [
"hep-ph"
] | M.V.Chizhov |
hep-ph/9407235 | Application of conformal mapping and Pad\'{e} approximants $(\omega
P's)$ to the calculation of various two-loop Feynman diagrams | Feynman diagrams are calculated by means of their Taylor series expansion in
terms of external momenta squared. It is demonstrated in various examples that
by the application of conformal mapping and Pad\'{e} approximants, it is
possible to obtain high precision results in the spacelike as well as in the
timelike regio... | 1994-07-06 | 2009-10-28 | [
"hep-ph"
] | J. Fleischer and O.V. Tarasov |
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