TY - JOUR
T1 - Improving flavor symmetry in the Kogut-Susskind hadron spectrum
AU - Blum, Tom
AU - DeTar, Carleton
AU - Gottlieb, Steven
AU - Rummukainen, Kari
AU - Heller, Urs M.
AU - Hetrick, James E.
AU - Toussaint, Doug
AU - Sugar, R. L.
AU - Wingate, Matthew
PY - 1997
Y1 - 1997
N2 - 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 “fat link,” 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.
AB - 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 “fat link,” 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.
UR - https://www.scopus.com/pages/publications/0000567258
UR - https://www.scopus.com/pages/publications/0000567258#tab=citedBy
U2 - 10.1103/PhysRevD.55.R1133
DO - 10.1103/PhysRevD.55.R1133
M3 - Article
SN - 1550-7998
VL - 55
SP - R1133-R1137
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 3
ER -