Publication Date

2004

Comments

This is the pre-published version which is collected from arXiv. The published version is at http://prc.aps.org/abstract/PRC/v70/i5/e051601

Abstract

The nonleptonic weak ∣ΔS∣=1 ΛN interaction, responsible for the dominant nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective-field theory. The long-range physics is described through tree-level exchange of the SU(3) Goldstone bosons, while the short-range potential is parametrized in terms of the lowest-order contact terms. We obtain reasonable fits to available weak hypernuclear decay rates and quote the values for the parity-violating asymmetry as predicted by the present effective-field theory.

Pages

-

Volume

70

Issue

5

Journal Title

PHYSICAL REVIEW C