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Observation of Coulomb-Assisted Nuclear Bound State of Xi(-) -N-14 System
- Authors
- Hayakawa, S. H.; Agari, K.; Ahn, J. K.; Akaishi, T.; Akazawa, Y.; Ashikaga, S.; Bassalleck, B.; Bleser, S.; Ekawa, H.; Endo, Y.; Fujikawa, Y.; Fujioka, N.; Fujita, M.; Goto, R.; Han, Y.; Hasegawa, S.; Hashimoto, T.; Hayakawa, T.; Hayata, E.; Hicks, K.; Hirose, E.; Hirose, M.; Honda, R.; Hoshino, K.; Hoshino, S.; Hosomi, K.; Hwang, S. H.; Ichikawa, Y.; Ichikawa, M.; Imai, K.; Inaba, K.; Ishikawa, Y.; Ito, H.; Ito, K.; Jung, W. S.; Kanatsuki, S.; Kanauchi, H.; Kasagi, A.; Kawai, T.; Kim, M. H.; Kim, S. H.; Kinbara, S.; Kiuchi, R.; Kobayashi, H.; Kobayashi, K.; Koike, T.; Koshikawa, A.; Lee, J. Y.; Ma, T. L.; Matsumoto, S. Y.; Minakawa, M.; Miwa, K.; Moe, A. T.; Moon, T. J.; Moritsu, M.; Nagase, Y.; Nakada, Y.; Nakagawa, M.; Nakashima, D.; Nakazawa, K.; Nanamura, T.; Naruki, M.; Nyaw, A. N. L.; Ogura, Y.; Ohashi, M.; Oue, K.; Ozawa, S.; Pochodzalla, J.; Ryu, S. Y.; Sako, H.; Sato, S.; Sato, Y.; Schupp, F.; Shirotori, K.; Soe, M. M.; Soe, M. K.; Sohn, J. Y.; Sugimura, H.; Suzuki, K. N.; Takahashi, H.; Takahashi, T.; Takeda, T.; Tamura, H.; Tanida, K.; Theint, A. M. M.; Tint, K. T.; Toyama, Y.; Ukai, M.; Umezaki, E.; Watabe, T.; Watanabe, K.; Yamamoto, T. O.; Yang, S. B.; Yoon, C. S.; Yoshida, J.; Yoshimoto, M.; Zhang, D. H.; Zhang, Z.
- Issue Date
- 11-2월-2021
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.126, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 126
- Number
- 6
- ISSN
- 0031-9007
- Abstract
- In an emulsion-counter hybrid experiment performed at J-PARC, a Xi(-) absorption event was observed which decayed into twin single-Lambda hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Xi(-) +N-14 -> Be-10(Lambda) + He-5(Lambda). For the binding energy of the Xi(-) hyperon in the Xi(-) -N-14 system a value of 1.27 +/- 0.21 MeV was deduced. The energy level of Xi(-) is likely a nuclear 1p state which indicates a weak Xi N-Lambda Lambda coupling.
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