Abstract: We perform theoretical analysis on structure and weak decay of a double strangeness five-body system which consists of Ξ5H and ΛΛ5H. Two coupled-channel Schrödinger's equations are solved to find that there is a bound ΛΛ5H state with 6.3 MeV below the threshold of t+Λ+Λ and in the Ξ-channel a resonance Ξ5H state appears at 1.7 MeV below the threshold of α+Ξ−. The latter is a halo nuclear state with 0.2 MeV conversion width which is extremely narrow. It is also found that the Ξ mixing in the ΛΛ5H ground state is small with 1.0%. For the ΛΛ5H state, the weak decay to the α+Σ− final state would produce a high energy monoenergetic Σ− which would become a clear signature of the forming of the ΛΛ hypernucleus.
Publication Year: 1992
Publication Date: 1992-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 10
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