Improving flavor symmetry in the Kogut-Susskind hadron spectrum

Tom Blum, Carleton DeTar, Steven Gottlieb, Kari Rummukainen, Urs M. Heller, James E. Hetrick, Doug Toussaint, R. L. Sugar, Matthew Wingate

Research output: Contribution to journalArticle

136 Scopus citations

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 languageEnglish (US)
Pages (from-to)R1133-R1137
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume55
Issue number3
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Improving flavor symmetry in the Kogut-Susskind hadron spectrum'. Together they form a unique fingerprint.

  • Cite this

    Blum, T., DeTar, C., Gottlieb, S., Rummukainen, K., Heller, U. M., Hetrick, J. E., Toussaint, D., Sugar, R. L., & Wingate, M. (1997). Improving flavor symmetry in the Kogut-Susskind hadron spectrum. Physical Review D - Particles, Fields, Gravitation and Cosmology, 55(3), R1133-R1137. https://doi.org/10.1103/PhysRevD.55.R1133