Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-02-28
Phys.Rev. D54 (1996) 2108-2113
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 3 eps figures, use epsfig.sty
Scientific paper
10.1103/PhysRevD.54.2108
It is shown that hyperon beta decay data can be well accommodated within the framework of Cabbibo's SU(3) symmetric description if one allows for a small SU(3) symmetry breaking proportional to the mass difference between strange and nonstrange quarks. The F/D ratio does not depend sensitively on the exact form of the symmetry-breaking, and the best fits are close to the value previously used in the analysis of deep inelastic scattering of electrons or muons on polarized nucleons. The total quark helicity and strange quark polarization in the nucleon are discussed.
Kabir P. K.
McCarthy J. S.
Song Xianfa
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