Published November 8, 1999
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Chiral approach to weak radiative hyperon decays and the Ξ0→Λγ asymmetry
- 1. Dept. of Theor. Physics, Institute of Nuclear Physics, Cracow (Poland)
Description
We reanalyse the recent version of the chiral model of weak radiative hyperon decays, proposed by Borasoy and Holstein. It is shown that predictions of the analysed model are significantly changed when one accepts the usual classification of Λ(1405) as an SU(3)-singlet. In particular, for the Ξ0→Λγ decay large negative asymmetry is obtained. This is contrasted with the Hara's-theorem-violating approaches where this asymmetry is large and positive. (author)
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Additional details
Publishing Information
- Imprint Pagination
- 15 p.
- Report number
- INP--1833/PH
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 31011638
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; DECAY AMPLITUDES; HYPERONS; LAMBDA-1405 BARYONS; LAMBDA-1670 BARYONS; N-1535 BARYONS; O GROUPS; P INVARIANCE; PARTICLE MODELS; QUARK MODEL; RADIATIVE DECAY; SIGMA-1750 BARYONS; SU-3 GROUPS; SU-6 GROUPS; WEAK PARTICLE DECAY; XI BARYONS
- Descriptors DEC
- AMPLITUDES; BARYONS; COMPOSITE MODELS; DECAY; DYNAMICAL GROUPS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYPERONS; INVARIANCE PRINCIPLES; LAMBDA BARYONS; LIE GROUPS; MATHEMATICAL MODELS; N BARYONS; N*BARYONS; PARTICLE DECAY; PARTICLE MODELS; SIGMA BARYONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY GROUPS; TRANSITION AMPLITUDES
Optional Information
- Notes
- 18 refs, 1 fig