An event excess observed in the deeply bound region of the C-12(K-,p) missing-mass spectrum
DC Field | Value | Language |
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dc.contributor.author | Ichikawa, Yudai | - |
dc.contributor.author | Yamagata-Sekihara, Junko | - |
dc.contributor.author | Ahn, Jung Keun | - |
dc.contributor.author | Akazawa, Yuya | - |
dc.contributor.author | Aoki, Kanae | - |
dc.contributor.author | Botta, Elena | - |
dc.contributor.author | Ekawa, Hiroyuki | - |
dc.contributor.author | Evtoukhovitch, Petr | - |
dc.contributor.author | Feliciello, Alessandro | - |
dc.contributor.author | Fujita, Manami | - |
dc.contributor.author | Gogami, Toshiyuki | - |
dc.contributor.author | Hasegawa, Shoichi | - |
dc.contributor.author | Hasegawa, Tomoyuki | - |
dc.contributor.author | Hayakawa, Shuhei | - |
dc.contributor.author | Hayakawa, Tomonori | - |
dc.contributor.author | Hirenzaki, Satoru | - |
dc.contributor.author | Honda, Ryotaro | - |
dc.contributor.author | Hosomi, Kenji | - |
dc.contributor.author | Imai, Ken'ichi | - |
dc.contributor.author | Jung, Wooseung | - |
dc.contributor.author | Kanatsuki, Shunsuke | - |
dc.contributor.author | Kim, Shin Hyung | - |
dc.contributor.author | Kinbara, Shinji | - |
dc.contributor.author | Kobayashi, Kazuya | - |
dc.contributor.author | Lee, Jaeyong | - |
dc.contributor.author | Marcello, Simonetta | - |
dc.contributor.author | Miwa, Koji | - |
dc.contributor.author | Moon, Taejin | - |
dc.contributor.author | Nagae, Tomofumi | - |
dc.contributor.author | Nakada, Yoshiyuki | - |
dc.contributor.author | Nakagawa, Manami | - |
dc.contributor.author | Nanamura, Takuya | - |
dc.contributor.author | Naruki, Megumi | - |
dc.contributor.author | Sakaguchi, Atsushi | - |
dc.contributor.author | Sako, Hiroyuki | - |
dc.contributor.author | Sato, Susumu | - |
dc.contributor.author | Sasaki, Yuki | - |
dc.contributor.author | Shirotori, Kotaro | - |
dc.contributor.author | Sugimura, Hitoshi | - |
dc.contributor.author | Takahashi, Toshiyuki | - |
dc.contributor.author | Tamura, Hirokazu | - |
dc.contributor.author | Tanida, Kiyoshi | - |
dc.contributor.author | Tsamalaidze, Zviadi | - |
dc.contributor.author | Ukai, Mifuyu | - |
dc.contributor.author | Yamamoto, Takeshi O. | - |
dc.date.accessioned | 2021-12-08T14:41:28Z | - |
dc.date.available | 2021-12-08T14:41:28Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.issn | 2050-3911 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/130345 | - |
dc.description.abstract | We have measured, for the first time, the inclusive missing-mass spectrum of the C-12(K-,p) reaction at an incident kaon momentum of 1.8 GeV/c at the J-PARC K1.8 beamline. We observed a prominent quasi-elastic peak (K- p -> K- p) in this spectrum. In the quasi-elastic peak region, the effect of secondary interaction is apparently observed as a peak shift, and the peak exhibits a tail in the bound region. We compared the spectrum with a theoretical calculation based on the Green's function method by assuming different values of the parameters for the (K) over bar -nucleus optical potential. We found that the spectrum shape in the binding-energy region -300 MeV < B-K < 40 MeV is best reproduced with the potential depths V-0 = -80 MeV (real part) and W-0 = -40 MeV (imaginary part). On the other hand, we observed a significant event excess in the deeply bound region around B-K similar to 100 MeV, where the major decay channel of K- NN -> pi Sigma N is energetically closed, and the non-mesonic decay modes (K- NN -> Lambda N and Sigma N) should mainly contribute. The enhancement is fitted well by a Breit-Wigner function with a kaon-binding energy of 90 MeV and width 100 MeV. A possible interpretation is a deeply bound state of a Y*-nucleus system. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | OXFORD UNIV PRESS INC | - |
dc.subject | PARTIAL-WAVE ANALYSIS | - |
dc.subject | P ELASTIC-SCATTERING | - |
dc.subject | ENERGY-RANGE 1915 | - |
dc.subject | K-P | - |
dc.subject | KAONIC ATOMS | - |
dc.subject | SIGMA-HYPERNUCLEI | - |
dc.subject | CROSS-SECTIONS | - |
dc.subject | LAMBDA | - |
dc.subject | NUCLEI | - |
dc.subject | STATE | - |
dc.title | An event excess observed in the deeply bound region of the C-12(K-,p) missing-mass spectrum | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ahn, Jung Keun | - |
dc.identifier.doi | 10.1093/ptep/ptaa139 | - |
dc.identifier.wosid | 000606173000009 | - |
dc.identifier.bibliographicCitation | PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, v.2020, no.12 | - |
dc.relation.isPartOf | PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | - |
dc.citation.title | PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | - |
dc.citation.volume | 2020 | - |
dc.citation.number | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Particles & Fields | - |
dc.subject.keywordPlus | PARTIAL-WAVE ANALYSIS | - |
dc.subject.keywordPlus | P ELASTIC-SCATTERING | - |
dc.subject.keywordPlus | ENERGY-RANGE 1915 | - |
dc.subject.keywordPlus | K-P | - |
dc.subject.keywordPlus | KAONIC ATOMS | - |
dc.subject.keywordPlus | SIGMA-HYPERNUCLEI | - |
dc.subject.keywordPlus | CROSS-SECTIONS | - |
dc.subject.keywordPlus | LAMBDA | - |
dc.subject.keywordPlus | NUCLEI | - |
dc.subject.keywordPlus | STATE | - |
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