Nuclear structure in nonmesonic weak decay of hypernuclei - INSPIRE

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Nuclear structure in nonmesonic weak decay of hypernuclei

F. Krmpotic
(
- La Plata U.
)
,
D. Tadic
(
- Zagreb U.
)

Dec, 2002

9 pages

Part of Nuclear physics. Proceedings, 25th Workshop, Sao Pedro, Brazil, August 31-September 4, 2002

Published in:

Braz.J.Phys. 33 (2003) 187-194

Contribution to:

XXV Workshop on Nuclear Physics in Brazil

e-Print:

nucl-th/0212040 [nucl-th]

DOI:

10.1590/S0103-97332003000200005

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Abstract:

A general shell model formalism for the nonmesonic weak decay of the hypernuclei has been developed.It involves a partial wave expansion of the emitted nucleon waves,preserves naturally the antisymmetrization between the escaping particles and the residual core, and contains as a particular case the weak Lambda-core coupling formalism. The hypernuclei are grouped having in view their A-1 cores, that is in those with even-even, even-odd and odd-odd cores.It is shown that in all three cases the nuclear structure manifests itself basically through Pauli Principle, and very simple expressions are derived for the neutron and proton induced decays rates, which does not involve the spectroscopic factors.

Note:

18 pages, 4 figures, Proceedings of XXV RTFNB (Sept. 2002), Brazil

Lambda: hypernucleus
hypernucleus: hadronic decay
final state: (0meson)
nuclear properties
shell model
hypernucleus: lifetime
numerical calculations: interpretation of experiments
bibliography

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Figures(0)

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