Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- University of California, RiversideUS1.9k papers
- University of VirginiaUS1.8k papers
- Rice UniversityUS1.8k papers
- Fermi National Accelerator LaboratoryUS1.8k papers
- Princeton UniversityUS1.8k papers
- Charles UniversityCZ1.8k papers
- University of Maryland, College ParkUS1.7k papers
- Tata Institute of Fundamental ResearchIN1.7k papers
- University of Notre DameUS1.7k papers
32 papers · 2 filters
Quenched hadron spectroscopy with improved staggered quark action
MILC Collaboration, Claude Bernard, Tom Blum +9
We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an…
A quark action for very coarse lattices
M. Alford, Timothy Klassen, Peter Lepage
We investigate a tree-level O(a^3)-accurate action, D234c, on coarse lattices. For the improvement terms we use tadpole-improved coefficients, with the tadpole contribution measure…
Light quark spectrum with improved gauge and fermion actions
MILC Collaboration, Claude Bernard, Tom DeGrand +9
We report on a study of the light quark spectrum using an improved gauge action and both Kogut-Susskind and Naik quark actions. We have studied six different lattice spacings, corr…
The Effectiveness of Non-Perturbative O(a) Improvement in Lattice QCD
R. G. Edwards, U. M. Heller, T. R. Klassen
The ALPHA collaboration has determined the O(a) improved Wilson quark action for lattice spacings fm, in the quenched approximation. We extend this result to coarser la…
Probing the Region of Massless Quarks in Quenched Lattice QCD using Wilson Fermions
Robert G. Edwards, Urs M. Heller, Rajamani Narayanan +1
We study the spectrum of with being the Wilson-Dirac operator on the lattice with bare mass equal to . The background gauge fields are generated using th…
Accurate Scale Determinations for the Wilson Gauge Action
R. G. Edwards, U. M. Heller, T. R. Klassen
Accurate determinations of the physical scale of a lattice action are required to check scaling and take the continuum limit. We present a high statistics study of the static poten…
Update on the hadron spectrum with two flavors of staggered quarks
The MILC Collaboration, C. Bernard, T. Blum +9
We present an update on the MILC Collaboration's light hadron spectrum calculation with two flavors of dynamical, staggered quarks. We present extrapolations of the nucleon to rho…
The Schrödinger Functional and Non-Perturbative Improvement
R. G. Edwards, U. M. Heller, T. R. Klassen
After describing the Schrödinger functional for standard and improved gluon and quark actions we present results for the non-perturbative clover coefficients of the SW quark action…
Critical Behavior at the Chiral Phase Transition
C. Bernard, T. Blum, C. E. DeTar +8
Quantum chromodynamics with two zero mass flavors is expected to exhibit a phase transition with O(4) critical behavior. Fixing the universality class is important for phenomenolog…
The Gluon Propagator at High Temperature: Screening, Improvement and Non-Zero Momenta
U. M. Heller, F. Karsch, J. Rank
We study the gluon propagator and the singlet potential in Landau gauge in the deconfined phase of SU(2) lattice gauge theory, using both the standard Wilson action and a tree-leve…
SCRI Results With the Tadpole-Improved Clover Action
Sara Collins, Robert G. Edwards, Urs. M. Heller +1
We compare light hadron spectroscopy using the Wilson and Clover fermionic actions. We show that a Clover coefficient chosen using tadpole-improved tree-level perturbation theory e…
The Schrödinger functional running coupling with staggered fermions and its application to many flavor QCD
Urs M. Heller
We discuss the Schrödinger functional in lattice QCD with staggered fermions and relate it, in the classical continuum limit, to the Schrödinger functional regularized with Wilson…
Heavy-Light Decay Constants from Wilson and Static Quarks
C. Bernard, T. DeGrand, C. DeTar +8
MILC collaboration results for \fB, \fBs, \fD, \fDs and their ratios are presented. These results are still preliminary, but the analysis is close to being completed. Sources of sy…
QCDSP - A status report
QCDSP Collaboration, Dong Chen, Ping Chen +16
The QCDSP machine at Columbia University has grown to 2,048 nodes achieving a peak speed of 100 Gigaflops. Software for quenched and Hybrid Monte Carlo (HMC) evolution schemes has…
Mean-link tadpole improvement of SW and D234 actions
Mark Alford, Timothy R. Klassen, Peter Lepage
We investigate a tadpole-improved tree-level-O(a^3)-accurate action, D234c, on coarse lattices, using the mean link in Landau gauge to measure the tadpole contribution. We find tha…
Non-perturbative quark mass renormalization
S. Capitani, M. Guagnelli, M. Luescher +4
We show that the renormalization factor relating the renormalization group invariant quark masses to the bare quark masses computed in lattice QCD can be determined non-perturbativ…
Further one-loop results in O(a) improved lattice QCD
Stefan Sint, Peter Weisz
Using the Schrödinger functional we have computed a variety of renormalized on-shell correlation functions to one-loop order of perturbation theory. By studying their approach to t…
On the Parity-Flavor-Breaking Phase in QCD With Two Flavors of Wilson Fermions
Khalil M. Bitar
We present further data in search of a parity-flavor-breaking phase in simulations of dynamical QCD with two flavors of light Wilson fermions in the strong coupling region. This is…
Screening Masses and Improvement in Pure SU(2) Lattice Gauge Theory at High Temperatures
U. M. Heller, F. Karsch, J. Rank
From the long-distance behaviour of gluon and Polyakov loop correlation functions we extract masses resp. energies in the electric and magnetic sectors. We discuss their dependence…
The Overlap Formalism and Topological Susceptibility on the Lattice
Rajamani Narayanan, Robert L. Singleton
Recent lattice measurements of the topological susceptibility of SU(2) gauge theory using improved cooling and inverse-blocking are in disagreement. We use the overlap method, whic…
The LHMC Algorithm for Free Field Theory: Reexamining Overrelaxation
Ivan Horvath, A. D. Kennedy
We analyze the autocorrelations for the LHMC algorithm in the context of free field theory. In this case this is just Adler's overrelaxation algorithm. We consider the algorithm wi…
Algorithmic aspects of multicanonical simulations
Bernd A. Berg
Monte Carlo (MC) simulations of many systems, in particular those with conflicting constraints, can be considerably speeded up by using multicanonical or related methods. Some of t…
Light hadron spectrum---MILC results with the Kogut-Susskind and Wilson actions
MILC Collaboration, Claude Bernard, Tom Blum +9
We present the current status of our ongoing calculations of the light hadron spectrum with both Kogut-Susskind (KS) and Wilson quarks in the valence or quenched approximation. We…
Heavy-light decay constants---MILC results with the Wilson action
MILC Collaboration, Claude Bernard, Tom Blum +11
We present the current status of our ongoing calculations of pseudoscalar meson decay constants for mesons that contain one light and one heavy quark (f_B, f_{B_s}, f_D, f_{D_s}).…