2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 12, 271-276
DOI 10.1007/s100529900264

Weak magnetism in chiral quark models

T. Ohlsson - H. Snellman

Theoretical Physics, Department of Physics, Royal Institute of Technology, 100 44 Stockholm, Sweden
snell@theophys.kth.se

Received: 29 June 1999 / Revised version: 15 September 1999 / Published online: 8 December 1999

Abstract
We discuss symmetry breaking in the weak magnetism form factors for the semileptonic octet baryon decays. In the chiral quark model, the symmetry breaking can be accounted for in the masses and the quark spin polarizations can take on more general values due to Goldstone boson depolarization. Here we clarify some features of the chiral quark model prediction for the weak magnetism and compare to the corresponding result of the chiral quark soliton model.


Copyright Springer-Verlag 2000