Magnetic moments of the 3/2 resonances and their quark spin structure

Details Magnetic moments of the 3/2 resonances and their quark spin structure Magnetic moments of the 3/2 resonances and their quark spin structure

1995-10-24

arxiv.org/abs/hep-ph/9510381v2

Phys.Rev. D53 (1996) 2337-2342

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, REVTeX, 2 figures, minor clarifying changes

Scientific paper

10.1103/PhysRevD.53.2337

We discuss magnetic moments of the $J=3/2$ baryons based on an earlier model for the baryon magnetic moments, allowing for flavor symmetry breaking in the quark magnetic moments as well as a general quark spin structure. From our earlier analysis of the nucleon-hyperon magnetic moments and the measured values of the magnetic moments of $\Delta^{++}$ and $\Omega^{-}$ we predict the other magnetic moments and deduce the spin structure of the resonance particles. We find from experiment that the total spin polarization of the decuplet baryons, $\Delta\Sigma(3/2)$, is considerably smaller than the non-relativistic quark model value of 3, although the data is still not good enough to give a precise determination.

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