Light hadron spectrum — MILC results with the Kogut - Susskind and Wilson actions ∗
نویسندگان
چکیده
Light hadron spectrum—MILC results with the Kogut-Susskind and Wilson actions∗ Claude Bernard, Tom Blum, Carleton DeTar, Steven Gottlieb, Urs M. Heller, Jim Hetrick, Craig McNeile, Kari Rummukainen, Bob Sugar, Doug Toussaint, and Matthew Wingate i Department of Physics, Washington University, St. Louis, MO 63130, USA Department of Physics, Brookhaven National Lab, Upton, NY 11973, USA Physics Department, University of Utah, Salt Lake City, UT 84112, USA Department of Physics, Indiana University, Bloomington, IN 47405, USA SCRI, Florida State University, Tallahassee, FL 32306-4052, USA Universität Bielefeld, Fakultät für Physik, Postfach 100131, D-33501 Bielefeld, Germany Department of Physics, University of California, Santa Barbara, CA 93106, USA Department of Physics, University of Arizona, Tucson, AZ 85721, USA Physics Department, University of Colorado, Boulder, CO 80309, USA
منابع مشابه
ar X iv : h ep - l at / 9 60 81 44 v 1 2 8 A ug 1 99 6 1 Topics in Light Hadron Mass Spectrum in Quenched QCD ∗
Several topics concerning the light hadron spectrum are discussed. Flavor symmetry breaking effects and the problem of quenched chiral logarithm are examined with pion mass data for the Kogut-Susskind quark action, and light meson decay constants for the Wilson action calculated with non-perturbative renormalization constants are discussed. Results for quark masses are also given both for the K...
متن کاملVariants of fattening and flavor symmetry restoration
The MILC Collaboration We study the effects of different " fat link " actions for Kogut-Susskind quarks on flavor symmetry breaking. Our method is mostly empirical-we compute the pion spectrum with different valence quark actions on common sets of sample lattices. Different actions are compared, as best we can, at equivalent physical points. We find significant reductions in flavor symmetry bre...
متن کاملVariants of Fattening and Avor Symmetry Restoration
The MILC Collaboration We study the eeects of diierent \fat link" actions for Kogut-Susskind quarks on avor symmetry breaking. Our method is mostly empirical-we compute the pion spectrum with diierent valence quark actions on common sets of sample lattices. Diierent actions are compared, as best we can, at equivalent physical points. We nd signiicant reductions in avor symmetry breaking relativ...
متن کاملExotic hybrid mesons from improved Kogut-Susskind fermions
Experimental evidence suggests the existence of particles with “exotic” quantum numbers J = 1−+, such as the π1(1400) [1] and the π1(1600) [2]. Explanations of these include fourquark states and hybrid mesons — mesons with gluonic excitations. Several lattice studies [3–5] have used quenched Wilson and improved Wilson fermions to explore the possibility of such hybrid states. Using both quenche...
متن کاملTesting improved actions for dynamical Kogut-Susskind quarks
The MILC Collaboration We extend tests of \Naik" and \fat link" improvements of the Kogut-Susskind quark action to full QCD simulations, and verify that the improvements previously demonstrated in the quenched approximation apply also to dynamical quark simulations. We extend the study of avor symmetry improvement to the complete set of pions, and nd that the nonlocal pions are signiicantly hea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1997