Meson exchange in the weak decay of Λ hypernuclei and the Γn/Γp ratio
✍ Scribed by D. Jido; E. Oset; J.E. Palomar
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 295 KB
- Volume
- 694
- Category
- Article
- ISSN
- 0375-9474
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📜 SIMILAR VOLUMES
The contribution of Pauli exchange terms to the two-nucleon induced non-mesonic weak decay of 12 Λ C hypernuclei, ΛN N → nN N (N = n or p), is studied within a nuclear matter formalism implemented in a local density approximation. We have adopted a weak transition potential including the exchange of
Contributions of the direct quark mechanism are studied in the non-mesonic weak decays of light hypernuclei. The AN --~ NN transition is described by the one pion exchange mechanism and the direct quark mechanism, induced by the four-quark vertices in the effective weak Hamiitonian. By employing a r