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On the ΔI= 1/2 rule in the ΛN→NN reaction (1999)

Rudy, Z. ; Cassing, W. ; Jarczyk, L. ; [et al.]

Springer

The European physical journal 5 (1999), S. 127-129

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ISSN: 1434-601X

Keywords: PACS: 13.30.-a Decays of baryons – 13.75.Ev Hyperon-nucleon interaction – 21.80 Hypernuclei – 25.80.Pw Hyperon-induced reactions

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: It is shown that the mass dependence of the Λ-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 ΔI= 1/2 rule might be violated for the nonmesonic decay of the Λ-hyperon.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100500050267

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