SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD
Physics Department, Brookhaven National Lab, Upton, NY 11973, USA
** Speaker, e-mail: firstname.lastname@example.org
Published online: 26 March 2018
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.
Acknowledges partial travel support under contract number DE-AC02-98CH10886 with the U.S. Department of Energy. Accordingly, the U.S. Government retains a non-exclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes.
© The Authors, published by EDP Sciences, 2018
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