On the Delta I = 1/2 rule in the Lambda N ----> N N reaction

Eur.Phys.J.A5:127-129,1999 It is shown that the mass dependence of the $\Lambda$-lifetime in heavy hypernuclei is sensitive to the ratio of neutron-induced to proton-induced non-mesonic decay rates R_n/R_p. A comparison of the experimental mass dependence of the lifetimes with the calculated ones fo...

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Bibliographic Details
Main Authors Rudy, Z, Cassing, W, Jarczyk, L, Kamys, B, Kulessa, P, Schult, O. W. B, Strzalkowski, A
Format Journal Article
LanguageEnglish
Published 12.04.1999
Subjects
Physics - Nuclear Theory
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Summary:Eur.Phys.J.A5:127-129,1999 It is shown that the mass dependence of the $\Lambda$-lifetime in heavy hypernuclei is sensitive to the ratio of neutron-induced to proton-induced non-mesonic decay rates R_n/R_p. A comparison of the experimental mass dependence of the lifetimes with the calculated ones for different values of R_n/R_p leads to the conclusion that this ratio is larger than 2 on the confidence level of 0.75. This suggests that the phenomenological $\Delta$I=1/2 rule might be violated for the nonmesonic decay of the $\Lambda$-hyperon.
DOI:10.48550/arxiv.nucl-th/9904032