18-24 June 2017
Palacio de Congresos
Europe/Madrid timezone
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Contribution Parallel

Seminarios 1+2
Chiral Symmetry

SU(3) breaking and the pseudoscalar spectrum in multi-taste QCD


Using the Sigma model to explore the lowest order pseudoscalar spectrum with SU(3) breaking, I consider an additional exact "taste" symmetry to mimic species doubling. I find that 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.