Pionic decay of Lambda Hypernuclei in a Continuum Shell Model

Details Pionic decay of Lambda Hypernuclei in a Continuum Shell Model Pionic decay of Lambda Hypernuclei in a Continuum Shell Model

2002-10-04

arxiv.org/abs/nucl-th/0210009v2

Phys.Rev.C67:034604,2003

Physics

Nuclear Physics

Nuclear Theory

19 pages, 4 figures, 7 tables, revised version to be published in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.67.034604

We evaluate pionic decay widths of Lambda hypernuclei using a shell model for, both the nuclear bound and the continuum nucleon wave functions in the final state, and distorted waves for the outgoing pion. An excellent agreement with the recent KEK measurement of $\pi^-$-decay widths of $^{12}_\Lambda$C and $^{28}_\Lambda$Si is found. Besides, results for $^{56}_\Lambda$Fe are consistent with the existing upper bound.

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