Improving flavor symmetry in the Kogut-Susskind hadron spectrum

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 {open_quotes}fat link,{close_quotes} or sum of link plus three-link paths. Flavor symmetry breaking, determined by the mass difference between the Goldstone...

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Veröffentlicht in:	Physical Review, D D, 1997-02, Vol.55 (3), p.R1133-R1137
Hauptverfasser:	Blum, Tom, DeTar, Carleton, Gottlieb, Steven, Rummukainen, Kari, Heller, Urs M., Hetrick, James E., Toussaint, Doug, Sugar, R. L., Wingate, Matthew
Format:	Artikel
Sprache:	eng
Schlagworte:	BARYON NUMBER COUPLING FLAVOR GOLDSTONE BOSONS HADRONS MASS DIFFERENCE MASS SPECTRA PHYSICS QUANTUM CHROMODYNAMICS QUARKS RENORMALIZATION SYMMETRY BREAKING
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