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Observation of Coulomb-Assisted Nuclear Bound State of Ξ^{-}-^{14}N System.
- Source :
-
Physical review letters [Phys Rev Lett] 2021 Feb 12; Vol. 126 (6), pp. 062501. - Publication Year :
- 2021
-
Abstract
- In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 126
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 33635678
- Full Text :
- https://doi.org/10.1103/PhysRevLett.126.062501