Flavor Symmetry Breaking and Strangeness in the Nucleon

Details Flavor Symmetry Breaking and Strangeness in the Nucleon Flavor Symmetry Breaking and Strangeness in the Nucleon

2002-12-12

arxiv.org/abs/hep-ph/0212170v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, EJPA-style. Based on talks presented at QNP 2002, Juelich, June 2002 and ''workshop on the structure of the nucleon''

Scientific paper

10.1140/epja/i2002-10283-5

We suggest that breaking of SU(3) flavor symmetry mainly resides in the baryon wave--functions while the charge operators have no (or only small) explicit symmetry breaking components. We utilize the collective coordinate approach to chiral soliton models to support this picture. In particular we compute the $g_A/g_V$ ratios for hyperon beta--decay and the strangeness contribution to the nucleon axial current matrix elements and analyze their variation with increasing flavor symmetry breaking.

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