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Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment
http://hdl.handle.net/20.500.12678/0000000758
http://hdl.handle.net/20.500.12678/0000000758442e2070-fa60-4381-8191-e5c0dc9b49ad
de49d22f-931a-4b60-acb7-c67d07ed6f35
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Publication type | ||||||
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Journal article | ||||||
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Publication | ||||||
Title | ||||||
Title | Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment | |||||
Language | en | |||||
Publication date | 2019 | |||||
Authors | ||||||
Ekawa, H. | ||||||
Nakazawa, K. | ||||||
Khin Than Tint, et.al | ||||||
Description | ||||||
A double-Λ hypernucleus, ΛΛBe, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (K−,K+) reaction. This event was interpreted as the production and decay of 10ΛΛBe, 11ΛΛBe, or 12ΛΛBe∗ via Ξ− capture in 16O. By assuming capture in the atomic 3D state, the binding energies of two Λ hyperons (BΛΛ) of these double-Λ hypernuclei are obtained to be 15.05±0.11MeV, 19.07±0.11MeV, and 13.68±0.11MeV, respectively. Based on the kinematic fitting, 11ΛΛBe is the most likely explanation for the observed event. |
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Keywords | ||||||
double-Lambda | ||||||
Identifier | https://umoar.mu.edu.mm/handle/123456789/376 | |||||
Journal articles | ||||||
2 | ||||||
Progress of Theoretical and Experimental Physics | ||||||
2019 | ||||||
Conference papaers | ||||||
Books/reports/chapters | ||||||
Thesis/dissertations |