Strongly Distorted Baryon Wave–functions: Hyperon Beta–decay and the Spin of the Λ and the Nucleon∗)
نویسندگان
چکیده
Within the collective coordinate approach to chiral soliton models 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) symmetry breaking components. In this framework we study the gA/gV ratios for hyperon beta–decay as well as the various quark flavor components of the axial charge of the nucleon and the Λ–hyperon.
منابع مشابه
Hyperon Beta–Decay and Axial Charges of the Lambda in view of Strongly Distorted Baryon Wave–Functions
Within the collective coordinate approach to chiral soliton models we suggest that breaking of SU(3) flavor symmetry mainly resides in the baryon wave–functions while the charge operators maintain a symmetric structure. Sizable symmetry breaking in the wave–functions is required to reproduce the observed spacing in the spectrum of the 1 2 + baryons. The matrix elements of the flavor symmetric c...
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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 gA/gV ratios for hyperon beta–decay and the strangeness contribution to the nucleon axia...
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