Final State Interactions in Hypernuclear Decay

Details Final State Interactions in Hypernuclear Decay Final State Interactions in Hypernuclear Decay

2001-04-27

arxiv.org/abs/nucl-th/0104080v1

Phys.Rev.C65:015204,2002

Physics

Nuclear Physics

Nuclear Theory

20 pages, 2 eps figures

Scientific paper

10.1103/PhysRevC.65.015204

We present an update of the One-Meson-Exchange (OME) results for the weak decay of s- and p-shell hypernuclei (Ref. Phys. Rev. C {\bf 56}, 339 (1997)), paying special attention to the role played by final state interactions between the emitted nucleons. The present study also corrects for a mistake in the inclusion of the $K$ and $K^*$ exchange mechanisms, which substantially increases the ratio of neutron-induced to proton-induced transitions, $\Gamma_n/\Gamma_p$. With the most up-to-date model ingredients, we find that the OME approach is able to describe very satisfactorily most of the measured observables, including the ratio $\Gamma_n/\Gamma_p$.

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