Eur. Phys. J. A (2003) 18: 559-562
https://doi.org/10.1140/epja/i2002-10283-5

Flavor symmetry breaking and strangeness in the nucleon

Institute for Theoretical Physics, Tübingen University, D-72076, Tübingen, Germany

^* e-mail: herbert.weigel@uni-tuebingen.de

Abstract

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.