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Four-baryon point interactions for nonmesonic weak decay of hypernuclei He-4(Lambda) and He-5(Lambda)
- Issue Date
- Jul-1999
- Publisher
- EDITRICE COMPOSITORI BOLOGNA
- Citation
- NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, v.112, no.7, pp 649 - 659
- Pages
- 11
- Journal Title
- NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS
- Volume
- 112
- Number
- 7
- Start Page
- 649
- End Page
- 659
- ISSN
- 1124-1861
- Abstract
- Four-baryon point interactions with Delta T = 3/2 component are suggested as a new model for the short-range part of the nonmesonic decay of hyper nuclei. For the long-range part we used the traditional one-pion exchange model. The result of our calculation and fitting for the total and partial decay rates and the ratio Gamma(n)/Gamma(p) of the hypernuclei He-4(Lambda) and He-5(Lambda) shows that they are in good agreement with the experimental data.
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