Improving flavor symmetry in the Kogut-Susskind hadron spectrum
Journal Article
·
· Physical Review, D
- Department of Physics, Brookhaven National Lab, Upton, New York 11973 (United States)
- Physics Department, University of Utah, Salt Lake City, Utah 84112 (United States)
- Department of Physics, Indiana University, Bloomington, Indiana 47405 (United States)
- SCRI, Florida State University, Tallahassee, Florida 32306-4052 (United States)
- Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)
- Department of Physics, University of California, Santa Barbara, California 93106 (United States)
- Physics Department, University of Colorado, Boulder, Colorado 80309 (United States)
We study the effect of modifying the coupling of Kogut-Susskind quarks to the gauge field by replacing the link matrix in the quark action by a {open_quotes}fat link,{close_quotes} or sum of link plus three-link paths. Flavor symmetry breaking, determined by the mass difference between the Goldstone and non-Goldstone local pions, is reduced by approximately a factor of 2 by this modification. {copyright} {ital 1997} {ital The American Physical Society}
- DOE Contract Number:
- AC02-86ER40253; FG02-91ER40628; FG02-91ER40661; FG03-95ER40906; FG05-85ER25000; FG05-92ER40742
- OSTI ID:
- 450572
- Journal Information:
- Physical Review, D, Vol. 55, Issue 3; Other Information: PBD: Feb 1997
- Country of Publication:
- United States
- Language:
- English
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