SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD
Using the Sigma model to explore the lowest order pseudo-scalar spectrum with SU(3) breaking, this talk considers an additional exact “taste” symmetry to mimic species doubling. Rooting replicas of a valid approach such as Wilson fermions reproduces the desired physical spectrum. In contrast, extra symmetries of the rooted staggered approach leave spurious states and a flavor dependent taste multiplicity.
1996 ◽
Vol 29
(12)
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pp. 3299-3310
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2003 ◽
Vol 119
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pp. 122-130
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