{Lambda}{ital N}{r_arrow}{ital NN} weak decay in the quark model
- Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152 (Japan)
The weak {Lambda}{ital N}{r_arrow}{ital NN} transition is studied in the valence quark model approach. The two baryon system is described in the quark cluster model and the weak transition amplitude is calculated by evaluating the matrix elements of the effective weak {Delta}{ital S}=1 Hamiltonian. The results indicate some qualitative differences when compared with those in conventional meson-exchange calculations. Especially, we conclude that contributions of the {Delta}{ital I}=3/2 transition are significant and that the discrepancy in the {ital n}--{ital p} ratio between theory and experiment could be resolved by including the direct-quark processes. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 165544
- Report Number(s):
- CONF-940514--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 338; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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