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-lat/9305002 | Critical exponents of the three-dimensional classical plane rotator
model on the sc lattice from a high temperature series analysis | High temperature series expansions of the spin-spin correlation function for
the plane rotator (or XY) model on the sc lattice are extended by three terms
through order $\beta^{17}$. Tables of the expansion coefficients are reported
for the correlation function spherical moments of order $l=0,1,2$. Our analysis
of the ... | 1993-05-03 | 2019-08-15 | [
"hep-lat",
"cond-mat"
] | P. Butera, M. Comi (Istituto Nazionale di Fisica Nucleare,
Dipartimento di Fisica, Universita di Milano Via Celoria 16, 20133 Milano,
Italy) and A. J. Guttmann (Department of Mathematics, The University of
Melbourne Parkville, Victoria 3052, Australia) |
hep-lat/9305003 | The Higgs Model with a Complex Ghost Pair | A higher derivative term is introduced in the kinetic energy of the Higgs
Lagrangian in the minimal Standard Model. A logically consistent and {\it
finite} field theory is obtained when some excitations of the Higgs field are
quantized with indefinite metric in the Hilbert space. The Landau ghost
phenomenon of the conv... | 1993-05-03 | 2010-11-01 | [
"hep-lat",
"hep-ph"
] | Karl Jansen, Julius Kuti and Chuan Liu |
hep-lat/9305004 | Strongly Interacting Higgs Sector in the Minimal Standard Model? | The triviality Higgs mass bound is studied with a higher derivative regulator
in the spontaneously broken phase of the four dimensional O(4) symmetric scalar
field theory with quartic self-interaction. The phase diagram of the O(4) model
is determined in a Monte Carlo simulation which interpolates between the
hypercubi... | 1993-05-03 | 2009-10-22 | [
"hep-lat"
] | Karl Jansen, Julius Kuti and Chuan Liu |
hep-lat/9305001 | SU(2) QCD in the Path Representation: General Formalism and Mandelstam
Indentities | We introduce a path-dependent hamiltonian representation (the path
representation) for SU(2) with fermions in 3 + 1 dimensions. The
gauge-invariant operators and hamiltonian are realized in a Hilbert space of
open path and loop functionals. We obtain two new types of Mandelstam
identities one that connects open path op... | 1993-05-02 | 2010-11-01 | [
"hep-lat",
"hep-th"
] | Rodolfo Gambini and Leonardo Setaro |
hep-lat/9304015 | The XY Model on a Dynamical Random Lattice | We study the XY model on a lattice with fluctuating connectivity. The
expectation is that at an appropriate critical point such a system corresponds
to a compactified boson coupled to 2d quantum gravity. Our simulations focus,
in particular, on the important topological features of the system. The results
lend strong s... | 1993-04-27 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | S. Catterall, J. Kogut, R. Renken |
hep-lat/9304016 | Three-Dimensional Quantum Gravity Coupled to Gauge Fields | We show how to simulate U(1) gauge fields coupled to three-dimensional
quantum gravity and then examine the phase diagram of this system. Quenched
mean field theory suggests that a transition separates confined and deconfined
phases (for the gauge matter) in both the negative curvature phase and the
positive curvature ... | 1993-04-27 | 2009-10-22 | [
"hep-lat"
] | Ray L. Renken, Simon M. Catterall, and John B. Kogut |
hep-lat/9304014 | Coloured Polymers | We show that non-oriented coloured polymers (self--avoiding walks with
different types of links) are in the same universality class of the ordinary
self--avoiding walks, while the oriented coloured are not. | 1993-04-26 | 2015-06-25 | [
"hep-lat",
"cond-mat"
] | I. Pesando |
hep-lat/9304013 | O(a) Perturbative improvement for Wilson fermions | The coefficient of the O(a)-improved
Sheikholeslami-Wohlert action for Wilson fermions are perturbatively
determined at one-loop level and estimated at two-loop level. | 1993-04-23 | 2009-10-22 | [
"hep-lat"
] | Satchidananda Naik |
hep-lat/9304012 | A comprehensive lattice study of SU(3) glueballs | We present a study of the $SU(3)$ glueball spectrum for all $J^{PC}$ values
at lattice spacings down to $a^{-1}=3.73 (6)$ GeV ($\beta=6.4$) using lattices
of size up to $32^4$. We extend previous studies and show that the continuum
limit has effectively been reached. The number of clearly identified $J^{PC}$
states has... | 1993-04-21 | 2008-11-26 | [
"hep-lat"
] | UKQCD Collaboration: GS Bali, K Schilling, A Hulsebos, AC Irving, C
Michael, PW Stephenson |
hep-lat/9304011 | Lattice Calculation of Glueball Matrix Elements | Matrix elements of the form $ <0| Tr \; g^{2}GG |G> $ are calculated using
the lattice QCD Monte Carlo method. Here, $|G>$ is a glueball state with
quantum numbers $ 0^{++}$, $ 2^{++}$, $ 0^{-+}$ and $G$ is the gluon field
strength operator. The matrix elements are obtained from the hybrid correlation
functions of the ... | 1993-04-20 | 2008-11-26 | [
"hep-lat",
"hep-ph"
] | Y. Liang, K.F. Liu, B.A. Li, S.J. Dong, and K. Ishikawa |
hep-lat/9304010 | Numerical Simulations in Particle Physics | Numerical simulations have become an important tool to understand and predict
non-perturbative phenomena in particle physics. In this article we attempt to
present a general overview over the field. First, the basic concepts of lattice
gauge theories are described, including a discussion of currently used
algorithms an... | 1993-04-14 | 2010-12-17 | [
"hep-lat"
] | F.Karsch and E.Laermann |
hep-lat/9304007 | Critical Exponents of the Three Dimensional Random Field Ising Model | The phase transition of the three--dimensional random field Ising model with
a discrete ($\pm h$) field distribution is investigated by extensive Monte
Carlo simulations. Values of the critical exponents for the correlation length,
specific heat, susceptibility, disconnected susceptibility and magnetization
are determi... | 1993-04-13 | 2019-06-05 | [
"hep-lat"
] | Heiko Rieger and A. P. Young |
hep-lat/9304006 | Computing Masses from Effective Transfer Matrices | We study the use of effective transfer matrices for the numerical computation
of masses (or correlation lengths) in lattice spin models. The effective
transfer matrix has a strongly reduced number of components. Its definition is
motivated by a renormalization group transformation of the full model onto a
1-dimensional... | 1993-04-13 | 2009-10-22 | [
"hep-lat"
] | M. Hasenbusch, K. Pinn and K. Rummukainen |
hep-lat/9304009 | Bethe-Salpeter Amplitudes and Density Correlations for Mesons with
Wilson Fermions | We present an investigation of various gauge invariant definitions of the
$q\bar q$ Bethe-Salpeter (BS) amplitude for mesons in lattice QCD, and compare
them to the Coulomb and Landau gauge BS amplitudes. We show that the gauge
invariant BS amplitude is considerably broadened by the use of ``fat'' gauge
links (construc... | 1993-04-13 | 2009-10-22 | [
"hep-lat"
] | Rajan Gupta, David Daniel and Jeffrey Grandy |
hep-lat/9304008 | A Comparative Study of Some Pseudorandom Number Generators | We present results of an extensive test program of a group of pseudorandom
number generators which are commonly used in the applications of physics, in
particular in Monte Carlo simulations. The generators include public domain
programs, manufacturer installed routines and a random number sequence produced
from physica... | 1993-04-13 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | I. Vattulainen, K. Kankaala, J. Saarinen, T. Ala-Nissila |
hep-lat/9304005 | Analytic Variational Investigation of Euclidean SU(3) Gauge Theory | Analytic variational techniques for lattice gauge theories based on the
Rayleigh-Ritz(RR) method were previously developed for euclidean SU(2) gauge
theories in 3 and 4 dimensions. Their extensions to SU(3) gauge theory
including applications to correlation functions and mass gaps are presented
here. | 1993-04-12 | 2019-08-15 | [
"hep-lat"
] | N.D. Hari Dass and G.Subramoniam (Institute of Mathematical Sciences,
C.I.T Campus, Madras 600 113, India) |
hep-lat/9304003 | Charged fermion states in the quenched U(1) chiral Wilson-Yukawa model | Property of charged fermion states is investigated in the quenched U(1)
chiral Wilson-Yukawa model. Fitting the charged fermion propagator with a
single hyperbolic cosine does not yield reliable results. On the other hand the
behavior of the propagator including large lattice size dependence is well
described by the la... | 1993-04-08 | 2009-10-22 | [
"hep-lat"
] | S.Aoki, H. Hirose and Y. Kikukawa |
hep-lat/9304004 | Idealized Multigrid Algorithm for Staggered Fermions | An idealized multigrid algorithm for the computation of propagators of
staggered fermions is investigated.
Exemplified in four-dimensional $SU(2)$ gauge fields, it is shown that the
idealized algorithm preserves criticality under coarsening.
The same is not true when the coarse grid operator is defined by the Galer... | 1993-04-08 | 2009-10-22 | [
"hep-lat"
] | Thomas Kalkreuter |
hep-lat/9304002 | Comment on ``Antiferromagnetic Potts Models'' | We show that the Wang-Swendsen-Koteck\'y algorithm for antiferromagnetic
$q$-state Potts models is nonergodic at zero temperature for $q=3$ on periodic
$3m \times 3n$ lattices where $m,n$ are relatively prime. For $q \ge 4$ and/or
other lattice sizes or boundary conditions, the ergodicity at zero temperature
is an open... | 1993-04-03 | 2009-01-23 | [
"hep-lat"
] | Mona Lubin and Alan D. Sokal |
hep-lat/9304001 | Heavy Dynamical Fermions in Lattice QCD | It is expected that the only effect of heavy dynamical fermions in QCD is to
renormalize the gauge coupling. We derive a simple expression for the shift in
the gauge coupling induced by $N_f$ flavors of heavy fermions. We compare this
formula to the shift in the gauge coupling at which the
confinement-deconfinement pha... | 1993-04-01 | 2009-10-22 | [
"hep-lat"
] | Anna Hasenfratz and Thomas A. DeGrand |
hep-lat/9303016 | Critical behaviour of the 1D q-state Potts model with long-range
interactions | The critical behaviour of the one-dimensional q-state Potts model with
long-range interactions decaying with distance r as $r^{-(1+\sigma)}$ has been
studied in the wide range of parameters $0 < \sigma \le 1$ and $\frac{1}{16}
\le q \le 64$. A transfer matrix has been constructed for a truncated range of
interactions f... | 1993-03-31 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | Z Glumac and K Uzelac |
hep-lat/9303015 | The dimer partition function | We apply the Ginzburg criterion to the dimer problem and we solve the
apparent contradiction of a system with mean field $\alpha={1\over2}$, the
typical value of tricritical systems, and upper critical dimension $D_{cr}=6$.
We find that the system has upper critical dimension $D_{cr}=6$ , while for
$D\le4$ it should un... | 1993-03-30 | 2007-05-23 | [
"hep-lat"
] | I. Pesando |
hep-lat/9303014 | The Coleman-Weinberg Mechanism and First Order Phase Transitions | Revised and reduced the size of the text. Removed figure 2 in previous text.
So, old figure 3 and 4 become new figure 2 and 3, respectively. Added figure 4
for first order phase transition observation in the strong coupling region.
Postscript files for the figures are available upon request. To be published in
Phys. Le... | 1993-03-26 | 2009-10-22 | [
"hep-lat",
"cond-mat",
"hep-ph",
"hep-th"
] | Yue Shen |
hep-lat/9303013 | Nonequilibrium Dynamics and Aging in the Three--Dimensional Ising Spin
Glass Model | The low temperature dynamics of the three dimensional Ising spin glass in
zero field with a discrete bond distribution is investigated via MC
simulations. The thermoremanent magnetization is found to decay algebraically
and the temperature dependent exponents agree very well with the experimentally
determined values. T... | 1993-03-26 | 2019-06-05 | [
"hep-lat"
] | Heiko Rieger |
hep-lat/9303011 | Time-dependent correlation functions in a one-dimensional asymmetric
exclusion process | We study a one-dimensional anisotropic exclusion process describing particles
injected at the origin, moving to the right on a chain of $L$ sites and being
removed at the (right) boundary. We construct the steady state and compute the
density profile, exact expressions for all equal-time n-point density
correlation fun... | 1993-03-23 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | Gunter Schuetz |
hep-lat/9303012 | Bounds on the renormalized couplings in an SU(2)_L \otimes SU(2)_R
symmetric Yukawa model | The vacuum stability lower bound on the mass of the Higgs boson is
numerically investigated in an $SU(2)_L \otimes SU(2)_R$ symmetric Yukawa
model, which describes two heavy degenerate fermion doublets in the limit of
vanishing gauge couplings. Good agreement with perturbation theory is found,
although the couplings ar... | 1993-03-23 | 2010-12-23 | [
"hep-lat"
] | L. Lin, I. Montvay, G. Muenster, M. Plagge and H. Wittig |
hep-lat/9303010 | Study of the Asymptotic Freedom of 2D Yukawa Models on the Lattice | We investigate on the lattice the Yukawa models in 2 dimensions with Z(2) and
U(1) symmetries. These models reduce to the usual and chiral Gross-Neveu
models, respectively, when the kinetic and the selfcoupling terms of the scalar
field are turned off. The numerical data and mean field arguments suggest that,
at least ... | 1993-03-19 | 2009-10-22 | [
"hep-lat"
] | A.K.De, E.Focht, W.Franzki, J.Jersak and M.A.Stephanov |
hep-lat/9303009 | Gauge-Invariant Smearing and Matrix Correlators using Wilson Fermions at
beta=6.2 | We present an investigation of gauge-invariant smearing for Wilson fermions
in quenched lattice QCD on a $24^3 \times 48$ lattice at $\beta = 6.2$. We
demonstrate a smearing algorithm that allows a substantial improvement in the
determination of the baryon spectrum obtained using propagators smeared at both
source and ... | 1993-03-18 | 2012-08-27 | [
"hep-lat"
] | UKQCD Collaboration |
hep-lat/9303008 | Flux-tubes in three-dimensional lattice gauge theories | Flux-tubes in different representations of SU(2) and U(1) lattice gauge
theories in three dimensions are measured. Wilson loops generate heavy
``quark-antiquark'' pairs in fundamental ($j=1/2$), adjoint ($j=1$), and
quartet ($j=3/2$) representations of SU(2). The first direct lattice
measurements of the flux-tube cross... | 1993-03-17 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Howard D. Trottier, R. M. Woloshyn |
hep-lat/9303006 | Smooth Random Surfaces from Tight Immersions? | We investigate actions for dynamically triangulated random surfaces that
consist of a gaussian or area term plus the {\it modulus} of the gaussian
curvature and compare their behavior with both gaussian plus extrinsic
curvature and ``Steiner'' actions. | 1993-03-11 | 2009-10-22 | [
"hep-lat"
] | C.F. Baillie and D.A. Johnston |
hep-lat/9303007 | String Representation of the Abelian Higgs Theory and Aharonov-Bohm
Effect on the Lattice | The partition function of the $4D$ lattice Abelian Higgs theory is
represented as the sum over world sheets of Nielsen--Olesen strings. The
creation and annihilation operators of the strings are constructed. The
topological long--range interaction of the strings and charged particles is
shown to exist; it is proportion... | 1993-03-11 | 2010-05-27 | [
"hep-lat",
"hep-th"
] | M.I.Polikarpov, U.-J. Wiese and M.A. Zubkov |
hep-lat/9303005 | Chiral Fermions from Lattice Boundaries | We construct a model in which four dimensional chiral fermions arise on the
boundaries of a five dimensional lattice with free boundary conditions in the
fifth direction. The physical content is similar to Kaplan's model of domain
wall fermions, yet the present construction has several technical advantages.
We discuss ... | 1993-03-10 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Yigal Shamir |
hep-lat/9303003 | Unstable Modes in Three-Dimensional SU(2) Gauge Theory | We investigate SU(2) gauge theory in a constant chromomagnetic field in three
dimensions both in the continuum and on the lattice. Using a variational method
to stabilize the unstable modes, we evaluate the vacuum energy density in the
one-loop approximation. We compare our theoretical results with the outcomes of
the ... | 1993-03-09 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | P. Cea and L. Cosmai |
hep-lat/9303004 | Removing fermion doublers in chiral gauge theories on the lattice | A method for removing fermion doublers in anomaly free chiral gauge theories
on the lattice is proposed. It is proven that the resulting continuum theory is
gauge invariant and does not require noninvariant counterterms of fine tuning
of parameters. | 1993-03-09 | 2009-10-22 | [
"hep-lat"
] | S.A. Frolov and A.A. Slavnov |
hep-lat/9303002 | Series expansions without diagrams | We discuss the use of recursive enumeration schemes to obtain low and high
temperature series expansions for discrete statistical systems. Using linear
combinations of generalized helical lattices, the method is competitive with
diagramatic approaches and is easily generalizable. We illustrate the approach
using the Is... | 1993-03-04 | 2009-10-22 | [
"hep-lat"
] | Gyan Bhanot, Michael Creutz, Ivan Horvath Jan Lacki and John Weckel |
hep-lat/9303001 | Is the Chiral Phase Transition in Non-Compact Lattice QED Driven by
Monopole Condensation? | We investigate the recent conjecture that the chiral phase transition in
non-compact lattice QED is driven by monopole condensation. The comparison of
analytic and numerical results shows that we have a quantitative understanding
of monopoles in both the quenched and dynamical cases. We can rule out monopole
condensati... | 1993-03-04 | 2009-09-25 | [
"hep-lat"
] | M. Goeckeler, R. Horsley, P.E.L. Rakow and G. Schierholz |
hep-lat/9302012 | Meson Decay Constant Predictions of the Valence Approximation to Lattice
QCD | We evaluate $f_{\pi}/ m_{\rho}$, $f_K/ m_{\rho}$, $1/f_{\rho}$, and $
m_{\phi}/(f_{\phi} m_{\rho})$, extrapolated to physical quark mass, zero
lattice spacing and infinite volume, for lattice QCD with Wilson quarks in the
valence (quenched) approximation. The predicted $m_{\phi}/(f_{\phi} m_{\rho})$
differs from experi... | 1993-02-28 | 2008-02-03 | [
"hep-lat",
"hep-ph"
] | F. Butler, H. Chen, J. Sexton, A. Vaccarino, and D. Weingarten |
hep-lat/9302009 | SU(2) Flux Distributions on Finite Lattices | We studied SU(2) flux distributions on four dimensional euclidean lattices
with one dimension very large. By choosing the time direction appropriately we
can study physics in two cases: one is finite volume in the zero temperature
limit, another is finite temperature in the the intermediate to large volume
limit. We fo... | 1993-02-26 | 2009-10-22 | [
"hep-lat"
] | Yingcai Peng and Richard W. Haymaker |
hep-lat/9302010 | Measurement of the penetration depth and coherence length in U(1) and
SU(2) dual Abrikosov vortices | We calculate the electric field and the curl of the magnetic monopole current
for U(1) and for SU(2) in the maximal abelian gauge in the mid- plane between a
quark antiquark pair. The results can be understood as a dual Abrikosov vortex
in the Ginzburg-Landau theory. | 1993-02-26 | 2009-10-22 | [
"hep-lat"
] | Vandana Singh, Dana Browne, Richard W. Haymaker |
hep-lat/9302011 | Vacuum structure of pure gauge theories on the lattice | We present results from simulations on two aspects of quark confinement in
the pure gauge sector. First is the calculation of the profile of the flux tube
connecting a static $q \bar{q}$ pair in $SU(2)$. By using the Michael sum rules
as a constraint we give evidence that the energy density at the center of the
flux tu... | 1993-02-26 | 2007-05-23 | [
"hep-lat"
] | Richard W. Haymaker, Vandana Singh, Dana Browne and Jacek Wosiek |
hep-lat/9302008 | Prediction of Peptide Conformation by Multicanonical Algorithm: A New
Approach to the Multiple-Minima Problem | We apply a recently developed method, multicanonical algorithm, to the
problem of tertiary structure prediction of peptides and proteins. As a simple
example to test the effectiveness of the algorithm, Met-enkephalin is studied
and the ergodicity problem, or multiple-minima problem, is shown to be overcome
by this algo... | 1993-02-25 | 2009-09-25 | [
"hep-lat",
"cond-mat",
"q-bio.BM"
] | Ulrich H.E. Hansmann and Yuko Okamoto |
hep-lat/9302006 | Numerical Study of Periodic Instanton Configurations in Two-dimensional
Abelian Higgs Theory | Numerical minimization of the Euclidean action of the two-dimensional Abelian
Higgs model is used to construct periodic instantons, the euclidean field
configurations with two turning points describing transitions between the
vicinities of topologically distinct vacua. Periodic instantons are found at
any energy ( up t... | 1993-02-19 | 2009-10-22 | [
"hep-lat"
] | Victor V. Matveev |
hep-lat/9302007 | Instanton-like Contributions to the Dynamics of Yang-Mills Fields on the
Twisted Torus | We study $SU(2)$ lattice gauge theory in small volumes and with twist
$\vec{m}=(1,1,1)$. We investigate the presence of the periodic instantons of
$Q=\frac{1}{2}$ and determine their free energy and their contribution to the
splitting of energy flux sectors \mbox{$E(\vec{e}=(1,1,1))-E(\vec{e}=(0,0,0))
$.} | 1993-02-19 | 2008-11-26 | [
"hep-lat"
] | The RTN Collaboration, Garcia Perez, Gonzalez-Arroyo, Martinez,
Fernandez, Munoz Sudupe, Ruiz-Lorenzo, Azcoiti, Campos, Ciria, Cruz, Iniguez,
Lesmes, Piedrafita, Rivero, Tarancon, Tellez, Badoni and Pech |
hep-lat/9302005 | Vacuum Tunneling and Periodic Structure in Lattice Higgs Models | Using a geometric definition for the lattice Chern-Simons term in even
dimensions, we have studied the distribution of Chern-Simons numbers for the
2d-U(1) and the 4d-SU(2) lattice Higgs models. The periodic structure of the
distributions is preserved in our lattice formulation and has been examined in
detail. In both ... | 1993-02-19 | 2009-10-22 | [
"hep-lat"
] | F. Karsch, M. L. Laursen, T. Neuhaus and B. Plache |
hep-lat/9302004 | Renormalization and topological susceptibility on the lattice: SU(2)
Yang-Mills theory | The renormalization functions involved in the determination of the
topological susceptibility in the SU(2) lattice gauge theory are extracted by
direct measurements, without relying on perturbation theory. The determination
exploits the phenomenon of critical slowing down to allow the separation of
perturbative and non... | 1993-02-18 | 2009-10-22 | [
"hep-lat"
] | Bartomeu Alles, Massimo Campostrini, Adriano Di Giacomo, Yigit Gunduc,
and Ettore Vicari |
hep-lat/9302003 | New Lower Bounds on the Self-Avoiding-Walk Connective Constant | We give an elementary new method for obtaining rigorous lower bounds on the
connective constant for self-avoiding walks on the hypercubic lattice $Z^d$.
The method is based on loop erasure and restoration, and does not require exact
enumeration data. Our bounds are best for high $d$, and in fact agree with the
first fo... | 1993-02-11 | 2009-10-22 | [
"hep-lat"
] | Takashi Hara, Gordon Slade and Alan D. Sokal |
hep-lat/9302002 | Recycle of random sequences | The correlation between a random sequence and its transformed sequences is
studied. In the case of a permutation operation or, in other word, the
shuffling operation, it is shown that the correlation can be so small that the
sequences can be regarded as independent random sequences. The applications to
the Monte Carlo ... | 1993-02-07 | 2015-06-25 | [
"hep-lat"
] | Nobuyasu Ito, Macoto Kikuchi and Yutaka Okabe |
hep-lat/9302001 | Steiner Variations on Random Surfaces | Ambartzumian et.al. suggested that the modified Steiner action functional had
desirable properties for a random surface action. However, Durhuus and Jonsson
pointed out that such an action led to an ill-defined grand-canonical partition
function and suggested that the addition of an area term might improve matters.
In ... | 1993-02-03 | 2009-10-22 | [
"hep-lat"
] | C.F. Baillie, D. Espriu and D.A. Johnston |
hep-lat/9301022 | Recent Developments in Lattice QCD | I review the current status of lattice QCD results. I concentrate on new
analytical developments and on numerical results relevant to phenomenology. | 1993-02-01 | 2015-06-25 | [
"hep-lat",
"hep-ph"
] | Apoorva Patel |
hep-lat/9301020 | The Confined-Deconfined Interface Tension in Quenched QCD using the
Histogram Method | We present results for the confinement-deconfinement interface tension
$\sigma_{cd}$ of quenched QCD. They were obtained by applying Binder's
histogram method to lattices of size $L^2\times L_z\times L_t$ for $L_t=2$ and
$L=8,10,12\mbox{ and }14$ and various $L_z\in [L,\, 4\, L]$. The use of a
multicanonical algorithm ... | 1993-01-28 | 2009-10-22 | [
"hep-lat"
] | B. Grossmann, M. L. Laursen |
hep-lat/9301021 | Charge Screening, Large-N, and the Abelian Projection Model of
Confinement | We point out that the abelian projection theory of quark confinement is in
conflict with certain large-N predictions. According to both large-N and
lattice strong-coupling arguments, the perimeter law behavior of adjoint Wilson
loops at large scales is due to charge-screening, and is suppressed relative to
the area ter... | 1993-01-28 | 2008-11-26 | [
"hep-lat"
] | L. DelDebbio, M. Faber, and J. Greensite |
hep-lat/9301019 | Lattice study of sphaleron transitions in a 2D O(3) sigma model | A lattice approach is developed to measure the sphaleron free energy. Its
feasibility is demonstrated through a Monte Carlo study of the two-dimensional
O(3) sigma model. | 1993-01-27 | 2008-11-26 | [
"hep-lat"
] | J. Kripfganz and C. Michael |
hep-lat/9301018 | Simple Hadronic Matrix Elements with Wilson Valence Quarks and Dynamical
Staggered Fermions at ${\bf 6/g^2=5.6}$ | We have measured some simple matrix elements for pseudoscalar and vector
mesons made of Wilson valence quarks and staggered sea quarks at $\beta=5.6$ at
sea quark masses $am_q=0.01$ and 0.025. Our measurements include the decay
constants of pseudoscalars (including $f_D$), the wave function at the origin
(or decay cons... | 1993-01-26 | 2009-10-22 | [
"hep-lat"
] | K.M. Bitar, T. DeGrand, R. Edwards, S. Gottlieb, U.M. Heller, A.D.
Kennedy, J.B. Kogut, A. Krasnitz, W. Liu, M.C. Ogilvie, R.L. Renken, P.
Rossi, D.K. Sinclair, R.L. Sugar, D. Toussaint, K.C. Wang |
hep-lat/9301017 | Low Temperature Expansions for Potts Models | On simple cubic lattices, we compute low temperature series expansions for
the energy, magnetization and susceptibility of the three-state Potts model in
D=2 and D=3 to 45 and 39 excited bonds respectively, and the eight-state Potts
model in D=2 to 25 excited bonds. We use a recursive procedure which enumerates
states ... | 1993-01-25 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | G. Bhanot, M. Creutz, U. Glassner, I. Horvath, J. Lacki, K. Schilling,
J. Weckel |
hep-lat/9301016 | $I=2$ pion scattering amplitude with Wilson fermions | We present an exploratory calculation of the $I=2$ $\pi-\pi$ scattering
amplitude at threshold using Wilson fermions in the quenched approximation,
including all the required contractions. We find good agreement with the
predictions of chiral perturbation theory even for pions of mass 560-700 MeV.
Within the 10\% error... | 1993-01-24 | 2009-10-22 | [
"hep-lat"
] | Rajan Gupta, Apoorva Patel and Stephen Sharpe |
hep-lat/9301015 | Chiral Gauge Theories and Fermion-Higgs Systems | Summary talk presented at the Conference on Lattice Field Theory, Amsterdam,
September, 1992. Abstract: The status of several proposals for defining a
theory of chiral fermions on the lattice is reviewed and some new estimates for
the upper bound on the Higgs mass are presented. | 1993-01-22 | 2009-10-22 | [
"hep-lat"
] | Donald N. Petcher |
hep-lat/9301014 | SU(N) Quantum Antiferromagnets and the Phase Structure of QED in the
Strong Coupling Limit | We examine the strong coupling limit of both compact and non compact QED on a
lattice with staggered fermions. We show that every SU(N) antiferromagnet with
spins in a particular fundamental representation of the SU(N) Lie Algebra and
with nearest neighbor couplings on a bipartite lattice is exactly equivalent to
the i... | 1993-01-21 | 2009-10-22 | [
"hep-lat",
"cond-mat",
"hep-th"
] | M.C.Diamantini E. Langmann G.W. Semenoff P.Sodano |
hep-lat/9301013 | Landau, Abrikosov, Hofstadter: Magnetic Flux Penetration in a Lattice
Superconductor | Magnetic flux penetration in superconductors involves a rich variety of
subtle phenomena, much of which is still poorly understood. Here these
complexities are studied by formulating the Ginzburg-Landau equations as a
lattice gauge theory. Their solutions are compared and contrasted with the
(heuristic) Landau model of... | 1993-01-21 | 2009-10-22 | [
"hep-lat"
] | David J.E. Callaway (Department of Physics The Rockefeller University
1230 York Avenue New York, NY) |
hep-lat/9301012 | Lattice Perturbation Theory by Computer Algebra: A Three-Loop Result for
the Topological Susceptibility | We present a scheme for the analytic computation of renormalization functions
on the lattice, using a symbolic manipulation computer language. Our first
nontrivial application is a new three-loop result for the topological
susceptibility. | 1993-01-21 | 2009-10-22 | [
"hep-lat"
] | B. Alles, M. Campostrini, A. Feo, H. Panagopoulos |
hep-lat/9301010 | Noncompact Lattice Simulations of SU(2) Gauge Theory | Wilson loops have been measured at strong coupling, $\beta=0.5$, on a $12^4$
lattice in noncompact simulations of pure SU(2) without gauge fixing. There is
no sign of quark confinement. | 1993-01-21 | 2009-10-22 | [
"hep-lat"
] | Kevin Cahill |
hep-lat/9301011 | Multigrid Monte Carlo with higher cycles in the Sine Gordon model | We study the dynamical critical behavior of multigrid Monte Carlo for the two
dimensional Sine Gordon model on lattices up to 128 x 128. Using piecewise
constant interpolation, we perform a W-cycle (gamma=2). We examine whether one
can reduce critical slowing down caused by decreasing acceptance rates on large
blocks b... | 1993-01-21 | 2009-12-30 | [
"hep-lat",
"cond-mat"
] | Martin Grabenstein and Bernhard Mikeska |
hep-lat/9301009 | Does the 2d Higgs-Yukawa Model Have a Symmetric Phase at Small Yukawa
Coupling Region? | We show that at arbitrary value of the scalar self coupling and small Yukawa
coupling $y$ the 2d Higgs-Yukawa model with Z(2) symmetry remains in the broken
phase and the model is asymptotically free: $y \to 0$ as the cut-off $\Lambda
\to \infty$. This is in agreement with a recent conjecture based on numerical
simulat... | 1993-01-20 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | Yue Shen |
hep-lat/9301008 | Finite size scaling in CP(N-1) models | Finite size effects in Euclidean ${\rm CP}^{N-1}$ models with periodic
boundary conditions are investigated by means of the $1/N$ expansion and by
Monte Carlo simulations. Analytic and numerical results for magnetic
susceptibility and correlation length are compared and found to agree for small
volumes. For large volum... | 1993-01-18 | 2014-11-17 | [
"hep-lat"
] | Paolo Rossi and Ettore Vicari (Dipartimento di Fisica dell'Universita`
di Pisa, Italy.) |
hep-lat/9301006 | Multi-Quark Energies in SU(2) Lattice Gauge Theory | Energies of four-quark systems have been extracted in a quenched SU(2)
lattice Monte Carlo calculation for two different geometries, rectangular and
colinear, with $\beta=2.4$ and lattice size $16^3\times 32$. Also, by going to
a lattice $24^3\times 32$ and to $\beta=2.5$, the effect of the finite lattice
size and scal... | 1993-01-15 | 2008-11-26 | [
"hep-lat"
] | A.M.Green, C.Michael, J.E.Paton and M.E.Sainio |
hep-lat/9301007 | On the Crumpling Transition in Crystalline Random Surfaces | We investigate the crumpling transition on crystalline random surfaces with
extrinsic curvature on lattices up to $64^2$. Our data are consistent with a
second order phase transition and we find correlation length critical exponent
$\nu=0.89\pm 0.07$. The specific heat exponent, $\alpha=0.2\pm 0.15$, is in
much better ... | 1993-01-15 | 2009-10-22 | [
"hep-lat"
] | J.F.Wheater and P.W.Stephenson |
hep-lat/9301005 | The Heavy Quark Self-Energy in Nonrelativistic Lattice QCD | The heavy quark self-energy in nonrelativistic lattice QCD is calculated to
$O(\alpha_s)$ in perturbation theory. An action which includes all
spin-independent relativistic corrections to order $v^2$, where $v$ is the
typical heavy quark velocity, and all spin-dependent corrections to order $v^4$
is used. The standard ... | 1993-01-15 | 2010-11-01 | [
"hep-lat",
"nucl-th"
] | Colin J. Morningstar |
hep-lat/9301003 | Measuring the Decorrelation Times of Fourier Modes in Simulations | We describe a method to study the rate at which modes decorrelate in
numerical simulations. We study the XY model updated with the Metropolis and
Wolff dynamics respectively and compute the rate at which each eigenvector of
the dynamics decorrelates. Our method allows us to identify the decorrelation
time for each mode... | 1993-01-13 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | R. Ben-Av and G. Bhanot |
hep-lat/9301004 | Structure of Abrikosov Vortices in SU(2) Lattice Gauge Theory | We calculate the electric flux and magnetic monopole current distribution in
the presence of a static quark-antiquark pair for SU(2) lattice gauge theory in
the maximal Abelian gauge. The current distribution confines the flux in a dual
Abrikosov vortex whose core size is comparable to the flux penetration depth.
The o... | 1993-01-13 | 2009-10-22 | [
"hep-lat"
] | V. Singh, D. A. Browne, and R. W. Haymaker |
hep-lat/9301002 | Critical Exponents of the Classical 3D Heisenberg Model: A
Single-Cluster Monte Carlo Study | We have simulated the three-dimensional Heisenberg model on simple cubic
lattices, using the single-cluster Monte Carlo update algorithm. The expected
pronounced reduction of critical slowing down at the phase transition is
verified. This allows simulations on significantly larger lattices than in
previous studies and ... | 1993-01-08 | 2009-10-22 | [
"hep-lat"
] | Christian Holm and Wolfhard Janke |
hep-lat/9301001 | Heavy-Light Wavefunctions in Lattice QCD | Using a multistate smearing method, Coulomb gauge wave functions of
heavy-light mesons are studied in lattice QCD. Wave functions for the ground
state, the first radially excited S-wave state, and the lowest P-wave states of
a heavy-light meson are calculated in quenched approximation. The results are
found to be in re... | 1993-01-06 | 2009-10-22 | [
"hep-lat"
] | A.Duncan, E.Eichten, and H.Thacker |
hep-ph/9312359 | On the Motion of Heavy Quarks inside Hadrons: Universal Distributions
and Inclusive Decays | In previous papers we have pointed out that there exists a QCD analog of the
phenomenological concept of the so called Fermi motion for the heavy quark
inside a hadron. Here we show in a more detailed way how this comes about and
we analyze the limitations of this concept. Non-perturbative as well as
perturbative aspec... | 1993-12-31 | 2009-10-22 | [
"hep-ph"
] | I.I.Bigi, M.A.Shifman, N.G.Uraltsev, A.I.Vainshtein |
hep-ph/9312362 | Finite Temperature Correlators in the Schwinger Model | We discuss the correlation function of hadronic currents in the Schwinger
model at finite temperature $T$. We explicitly construct the retarded
correlator in real time and obtain analytical results for the Euclidean
correlator on a torus. Both constructions lead to the same finite temperature
spectral function. The spa... | 1993-12-31 | 2009-10-22 | [
"hep-ph"
] | A. Fayyazuddin, T.H. Hansson, M. A. Nowak, J.J.M. Verbaarschot and I.
Zahed |
hep-ph/9312360 | Is the Top Quark Really Heavier than the $W$ Boson? | Scalar induced top decays may drastically suppress $B(t\to \ell\nu + jet)$
and still hide the top below $M_W$. The $p\bar p$ collider experiments should
enlarge the scope and study the $m_t - B(t\to\ell\nu j)$ plane. Specific model
signatures such as $t\to ch^0\to cb\bar b$ (multiple high $p_T$ $b$-jets) and
$t\to bH^+... | 1993-12-31 | 2009-10-22 | [
"hep-ph"
] | Wei-Shu Hou |
hep-ph/9312361 | Radiative Corrections to $\zbb$ from Colored Scalars in a Model with
Dynamical Symmetry Breaking | Isodoublet color-octet scalar bosons appear in the low-energy limit of a
natural extension of the Standard Model in which the electroweak symmetry is
broken by a $t\bar t$ condensate. We briefly discuss the model and show that
radiative corrections (involving these scalars) to the branching ratio
$R_b=\Gamma (Z\rightar... | 1993-12-31 | 2009-10-22 | [
"hep-ph"
] | A. Kundu, S. Raychaudhuri, T. De and B. Dutta-Roy |
hep-ph/9312357 | Heavy Higgs Boson Production in Association with Three Jets at Hadron
Supercolliders | We consider the real emission QCD correction to heavy Higgs boson production
via weak boson fusion in high energy $pp$ collisions. The ${\cal O}(\alpha_s)$
corrections are determined for the complete electroweak $q q \rightarrow q q
W^+ W^-$ process. The presence of a third parton in the final state affects the
formati... | 1993-12-30 | 2009-10-22 | [
"hep-ph"
] | A. Duff and D. Zeppenfeld |
hep-ph/9312354 | QCD, the Parton Model, and the Nucleon Polarised Structure Functions} | The present talk summarises the 1993 situation in understanding the spin
structure of the nucleon via electron and muon polarised deep--inelastic
scattering (PDIS). The central question I shall address here is if the data can
be interpreted as evidence for polarisation in the ``strange'' nucleon ``sea'',
and I conclude... | 1993-12-30 | 2007-05-23 | [
"hep-ph"
] | Paolo M. Gensini (Dip. di Fisica dell'Universit\`a di Perugia, and
Sez. di Perugia dell'I.N.F.N.) |
hep-ph/9312358 | E+ E- -> Tau+ Tau- at the Threshold and Beyond | The excitation curve for the $\tau^+ \, \tau^-$ production in electron
positron annihilation near the threshold is revisited with the aim of updating
and extending a previous work. We find that the corrections of the relative
magnitude $O(\alpha)$ near the threshold are significantly contributed by the
radiative modifi... | 1993-12-30 | 2009-10-22 | [
"hep-ph"
] | Brian H.Smith and M.B. Voloshin |
hep-ph/9312355 | A Hierarchy of Effective Field Theories of Hot Electroweak Matter | Abst\-ract: A hierarchy of effective three-dimensional theories of finite
temperature electroweak matter is studied. First an integration over non-static
modes leads to an effective theory containing a gauge field $A_{i}^{a}$, an
adjoint Higgs field $A_{0}^a$ and the fundamental Higgs field $\phi_{\alpha}$.
We carry ou... | 1993-12-30 | 2009-10-22 | [
"hep-ph"
] | A. Jakov\'ac, K. Kajantie and A. Patk\'os |
hep-ph/9312353 | Exact Heavy to Light Meson Form Factors in the Combined Heavy Quark,
Large $N_c$ and Chiral Limits | We demonstrate that the form factors of local operators between a heavy meson
state (like the~$B$) and a light pseudoscalar state (like the pion) are given
exactly by a single pole form in the combined heavy quark, large $N_c$ (number
of colors) and chiral limits. We discuss the deviations from this exact result
from f... | 1993-12-30 | 2007-05-23 | [
"hep-ph"
] | Benjamin Grinstein and Paul F. Mende |
hep-ph/9312352 | Standard Model Expectations for CP Violation | I review the predictions and expectations of the CKM model for CP violation
in both the $K^0-\bar K^0$ and $B^0-\bar B^0$ systems. A brief discussion of CP
violation in charged $K$- and $B$-decays is also included, as well as some
remarks on the electric dipole moments of the neutron and the electron. | 1993-12-30 | 2007-05-23 | [
"hep-ph"
] | R. D. Peccei, Ucla |
hep-ph/9312356 | Finite $3\pi$ Cut Approximation for the $\pi N\bar{N}$ Form Factor | Assuming the length of the $3\pi$ cut to be finite and approximating the
integrated amplitude by a constant, we derive an expression for the $\pi
N\bar{N}$ form factor which is very close to that given by a simple pole. The
specific predictions of the obtained form factor for the region of small
momentum transfer are d... | 1993-12-30 | 2008-11-26 | [
"hep-ph"
] | A.A.Bolokhov and N.Zovko |
hep-ph/9312351 | Electromagnetic nucleon properties and quark sea polarization in the
Nambu-Jona-Lasinio model | In this paper we present the derivation as well as the numerical results for
all electromagnetic form factors of the nucleon within the semibosonized
Nambu--Jona-Lasinio (chiral quark soliton) model. Other observables, namely the
nucleon mean squared radii, the magnetic moments and the nucleon--$\Delta$
splitting are a... | 1993-12-29 | 2009-09-25 | [
"hep-ph"
] | A.Z.Gorski, Chr.V.Christov and K.Goeke |
hep-ph/9312350 | Color Confinement, Quark Pair Creation and Dynamical Chiral-Symmetry
Breaking in the Dual Ginzburg-Landau Theory | We study the color confinement, the $q$-$\bar q$ pair creation and the
dynamical chiral-symmetry breaking of nonperturbative QCD by using the dual
Ginzburg-Landau theory, where QCD-monopole condensation plays an essential role
on the nonperturbative dynamics in the infrared region. As a result of the dual
Meissner effe... | 1993-12-29 | 2009-10-22 | [
"hep-ph"
] | Hideo Suganuma (RIKEN), Shoichi Sasaki(TMU) and Hiroshi Toki(TMU,
RIKEN) |
hep-ph/9312346 | Multiplicity with a Thrust Cut | We evaluate the multiplicity of hadrons in the $e^+e^-$-annihilation at a
given thrust $T$ in the modified leading-log approximation, including
$O(\sqrt{\alpha_s})$ corrections. The calculation is done at a large value of
$\tau =1-T$ by the use of the factorisation which takes place in the
one-particle-inclusive cross ... | 1993-12-28 | 2009-10-22 | [
"hep-ph"
] | K. Kimura and K. Tesima |
hep-ph/9312349 | Larger Domains of Disoriented Chiral Condensate Through Annealing | Relativistic heavy ion collisions can generate metastable domains in which
the chiral condensate is disoriented. Nucleus-sized domains can yield
measurable fluctuations in the number of neutral and charged pions. We propose
a scenario in which domains are `annealed' by a dynamically evolving effective
potential in the ... | 1993-12-28 | 2009-10-22 | [
"hep-ph",
"nucl-th"
] | Sean Gavin and Berndt Mueller |
hep-ph/9312348 | The Origin and Mechanisms of CP Violation In the Two-Higgs Doublet Model
and Masses of the Exotic Scalars | I rebuild a conventional two-Higgs doublet model by relaxing the spontaneous
CP violation and considering approximate global U(1) family symmetries. So that
the domain-wall problem does not explicitly arise at the weak scale, but CP
violation still solely originates from a single CP-phase in the vacuum after
spontaneou... | 1993-12-28 | 2008-02-03 | [
"hep-ph"
] | Yue-Liang Wu (CMU) |
hep-ph/9312347 | Signatures of an invisibly decaying Higgs particles at LHC | The Higgs particle can decay dominantly into an invisible channel in the
Majoron models. We have explored the prospect of detecting such a Higgs
particle at LHC via its associated production with a gluon, Z or W boson. While
the signal/background ratio is too small for the first process, the latter two
provide viable s... | 1993-12-28 | 2009-09-25 | [
"hep-ph"
] | Debajyoti Choudhury and D.P. Roy |
hep-ph/9312345 | Electroweak Sphaleron in Large Higgs Boson Mass Limit | Since the TRIVIALITY argument of the Higgs sector requires the existence of
new physics beyond the standard model, there should exist a cutoff $\Lambda$
beyond which the standard model will breakdown. The cutoff can be determined
from the position of the Landau pole. We study the effects of this cutoff on
the energy of... | 1993-12-27 | 2007-05-23 | [
"hep-ph"
] | Xinmin Zhang and Bing-Lin Young |
hep-ph/9312342 | Radiative Corrections in the Presence of Majorana Neutrinos | We have studied the radiative corrections from the fourth generation leptons
in the context of the see-saw mechanism. We have estimated numerically the
differential cross section for the process (${\rm e}^{+}{\rm e}^{-}\!
\rightarrow {\rm W}^{+}{\rm W}^{-}$) at one-loop level, and found in the cross
section the thresho... | 1993-12-27 | 2007-05-23 | [
"hep-ph"
] | M. Marui |
hep-ph/9312343 | External Gauge Invariance and Anomaly in BS Vertices and Boundstates | A systematic method is given for obtaining consistent approximations to the
Schwinger-Dyson(SD) and Bethe-Salpeter(BS) equations which maintain the
external gauge invariance. We show that for any order of approximation to the
SD equation there is a corresponding approximation to the BS equations such
that the solutions... | 1993-12-27 | 2017-02-01 | [
"hep-ph"
] | Masako Bando, Masayasu Harada and Taichiro Kugo |
hep-ph/9312344 | Instantons And Baryon Mass Splittings in the MIT Bag Model | The contribution of instanton-induced effective inter-quark interactions to
the baryon mass splittings was considered in the bag model. It is found that
results are different from those obtained in the constituent quark model where
the instanton effects are like those from one-gluon exchange. This is because
in the con... | 1993-12-27 | 2009-10-22 | [
"hep-ph"
] | D. Klabu\v{c}ar |
hep-ph/9312341 | Bounds on Vector Leptoquarks | We derive bounds on vector leptoquarks coupling to the first generation,
using data from low energy experiments as well as from high energy
accelerators. Similarly to the case of scalar leptoquarks, we find that the
strongest indirect bounds arise from atomic parity violation and universality
in leptonic pi decays. The... | 1993-12-27 | 2008-11-26 | [
"hep-ph"
] | Miriam Leurer (Weizmann Institute) |
hep-ph/9312340 | On sphaleron deformations induced by Yukawa interactions | Due to the presence of the chiral anomaly sphalerons with Chern-Simons number
a half (CS=1/2) are the only static configurations that allow for a fermion
level crossing in the two-dimensional Abelian-Higgs model with massless
fermions, i.e. in the absence of Yukawa interactions. In the presence of
fermion-Higgs interac... | 1993-12-25 | 2015-06-25 | [
"hep-ph"
] | M.Axenides, A.Johansen and H.B.Nielsen |
hep-ph/9312339 | Topological Classification of Odd-Parity Sphaleron Deformations | We discuss topological aspects of the electroweak sphaleron and its
odd-parity deformations. We demonstrate that they are uniquely classified in
terms of their odd and even-parity pure gauge field behaviour at spatial
infinity. Fermion level crossing occurs only for odd-parity configurations
which are topologically dis... | 1993-12-25 | 2009-10-22 | [
"hep-ph"
] | Minos Axenides and Andrei Johansen |
hep-ph/9312337 | Corrections to Hyperfine Splitting and Lamb Shift Induced by the
Overlapping Two-Loop Electron Self-Energy Insertion in the Electron Line | Contributions to HFS and to the Lamb shift intervals of order
$\alpha^2(Z\alpha)^5$ induced by the graph with the two-loop overlapping
electron self-energy diagram inserted in the electron line are considered.
Explicit expression for the overlapping two-loop self-energy diagram in the
Fried-Yennie gauge is obtained. Co... | 1993-12-24 | 2007-05-23 | [
"hep-ph"
] | M. I. Eides, S. G. Karshenboim and V. A. Shelyuto |
hep-ph/9312338 | In Pursuit of Gamma | After reviewing techniques for extracting clean information on CP-violating
phase angles from $B$ decays, we explain the rules for finding decay modes that
can probe the phase angle $\gamma$ of the unitarity triangle. We identify the
more promising of these ``$\gamma$ modes,'' estimate their branching ratios,
and exami... | 1993-12-24 | 2009-09-25 | [
"hep-ph"
] | R. Aleksan, B. Kayser and D. London |
hep-ph/9312336 | Anomalous Neutrino Reactions at HERA | We study the sensitivity of HERA to new physics using the helicity suppressed
reaction $e_R p \rightarrow \nu X $, where the final neutrino can be a standard
model one or a heavy neutrino. The approach is model independent and is based
on an effective lagrangian parametrization. It is shown that HERA will put
significa... | 1993-12-24 | 2009-10-22 | [
"hep-ph"
] | Jose Wudka |
hep-ph/9312333 | One-Loop N Gluon Amplitudes with Maximal Helicity Violation via
Collinear Limits | We present a conjecture for the $n$-gluon one-loop amplitudes with maximal
helicity violation. The conjecture emerges from the powerful requirement that
the amplitudes have the correct behavior in the collinear limits of external
momenta. One implication is that the corresponding amplitudes where three or
more gluon le... | 1993-12-24 | 2010-11-15 | [
"hep-ph",
"hep-th"
] | Z. Bern, G. Chalmers, L. Dixon, and D. A. Kosower |
hep-ph/9312332 | Comparison of Diagnostic Z' Physics at Future pp and e+e- Colliders | We present recent developments in the diagnostic study of heavy gauge bosons
at future $pp$ (CERN LHC) and $e^+e^-$ (NLC) colliders with the emphasis on the
model independent determination of gauge couplings of $Z'$ to quarks and
leptons. The analysis reflects a complementary diagnostic power of the LHC and
the NLC (c.... | 1993-12-23 | 2009-09-25 | [
"hep-ph"
] | M. Cvetic |
hep-ph/9312334 | Quadratic Divergences in GUTs with Vanishing One-Loop Beta Functions | All members of a recently proposed new set of (non-supersymmetric) grand
unified theories with at the one-loop level vanishing beta functions for the
gauge, Yukawa, and scalar-boson self-interaction coupling constants are shown
to involve, already at the one-loop level, quadratically divergent
contributions to both the... | 1993-12-23 | 2009-10-22 | [
"hep-ph",
"hep-th"
] | Wolfgang LUCHA and Michael MOSER |
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