Chiral forms and three-flavor operators for staggered baryons

Details Chiral forms and three-flavor operators for staggered baryons Chiral forms and three-flavor operators for staggered baryons

2006-10-20

arxiv.org/abs/hep-lat/0610113v1

PoSLAT2006:167,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 1 figure. Talk presented at Lattice 2006 (Hadron Spectroscopy), to appear in Proceedings of Science

Scientific paper

In staggered QCD, many staggered baryons correspond to each physical state. Taste violations lift the continuum degeneracies of the baryons and introduce nonzero off-diagonal elements in the mass matrix. While presenting no problem of principle, these splittings and mixings complicate analyses of simulation results. However, in special cases operators with good SU(3) quantum numbers can be used to circumvent the splittings and mixings. I review what has been learned from staggered chiral perturbation theory, outline a program of attack for the amenable cases, and summarize the present status of work on the staggered chiral forms and operators with good SU(3)xGTS quantum numbers.

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