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) |
|---|---|
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 55 |
| Issue number | 3 |
| State | Published - Feb 1 1997 |
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ASJC Scopus subject areas
- Mathematical Physics
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
Cite this
Improving flavor symmetry in the Kogut-Susskind hadron spectrum. / Blum, Tom; DeTar, Carleton; Gottlieb, Steven; Rummukainen, Kari; Heller, Urs M.; Hetrick, James E.; Toussaint, William D; Sugar, R. L.; Wingate, Matthew.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 55, No. 3, 01.02.1997.Research output: Contribution to journal › Article
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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, William D
AU - Sugar, R. L.
AU - Wingate, Matthew
PY - 1997/2/1
Y1 - 1997/2/1
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 - http://www.scopus.com/inward/record.url?scp=0000567258&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000567258&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000567258
VL - 55
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 3
ER -