Abstract
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.
Original language | English (US) |
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Pages (from-to) | R1133-R1137 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 55 |
Issue number | 3 |
DOIs | |
State | Published - 1997 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)