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

doi:10.1103/PhysRevD.55.R1133

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

Physics

Research output: Contribution to journal › Article › peer-review

135 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 language	English (US)
Pages (from-to)	R1133-R1137
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	55
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.55.R1133
State	Published - 1997

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.55.R1133

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title = "Improving flavor symmetry in the Kogut-Susskind hadron spectrum",

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 {\textquotedblleft}fat link,{\textquotedblright} 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.",

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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

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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.

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UR - https://www.scopus.com/pages/publications/0000567258#tab=citedBy

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DO - 10.1103/PhysRevD.55.R1133

M3 - Article

AN - SCOPUS:0000567258

SN - 1550-7998

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JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

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IS - 3

ER -

Improving flavor symmetry in the Kogut-Susskind hadron spectrum

Abstract

ASJC Scopus subject areas

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