Using baryon octet magnetic moments and masses to fix the pion cloud contribution

Details Using baryon octet magnetic moments and masses to fix the pion cloud contribution Using baryon octet magnetic moments and masses to fix the pion cloud contribution

2009-10-12

arxiv.org/abs/0910.2171v1

Phys.Lett.B690:183,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 figure

Scientific paper

10.1016/j.physletb.2010.05.016

Using SU(3) symmetry to constrain the pion BB' couplings, assuming SU(3) breaking comes only from one-loop pion cloud contributions, and using the the covariant spectator theory to describe the photon coupling to the quark core, we show how the experimental masses and magnetic moments of the baryon octet can be used to set a model independent constraint on the strength of the pion cloud contributions to the octet, and hence the nucleon, form factors at Q2=0.

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