Photoproduction of Lambda and Sigma(0) hyperons off protons with linearly polarized photons at E-gamma=1.5-3.0 GeV
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shiu, S. H. | - |
dc.contributor.author | Kohri, H. | - |
dc.contributor.author | Chang, W. C. | - |
dc.contributor.author | Ahn, D. S. | - |
dc.contributor.author | Ahn, J. K. | - |
dc.contributor.author | Chen, J. Y. | - |
dc.contributor.author | Date, S. | - |
dc.contributor.author | Ejiri, H. | - |
dc.contributor.author | Fujimura, H. | - |
dc.contributor.author | Fujiwara, M. | - |
dc.contributor.author | Fukui, S. | - |
dc.contributor.author | Gohn, W. | - |
dc.contributor.author | Hicks, K. | - |
dc.contributor.author | Hotta, T. | - |
dc.contributor.author | Hwang, S. H. | - |
dc.contributor.author | Imai, K. | - |
dc.contributor.author | Ishikawa, T. | - |
dc.contributor.author | Joo, K. | - |
dc.contributor.author | Kato, Y. | - |
dc.contributor.author | Kon, Y. | - |
dc.contributor.author | Lee, H. S. | - |
dc.contributor.author | Maeda, Y. | - |
dc.contributor.author | Mibe, T. | - |
dc.contributor.author | Miyabe, M. | - |
dc.contributor.author | Mizutani, K. | - |
dc.contributor.author | Morino, Y. | - |
dc.contributor.author | Muramatsu, N. | - |
dc.contributor.author | Nakano, T. | - |
dc.contributor.author | Nakatsugawa, Y. | - |
dc.contributor.author | Niiyama, M. | - |
dc.contributor.author | Noumi, H. | - |
dc.contributor.author | Ohashi, Y. | - |
dc.contributor.author | Ohta, T. | - |
dc.contributor.author | Oka, M. | - |
dc.contributor.author | Parker, J. D. | - |
dc.contributor.author | Rangacharyulu, C. | - |
dc.contributor.author | Ryu, S. Y. | - |
dc.contributor.author | Sawada, T. | - |
dc.contributor.author | Shimizu, H. | - |
dc.contributor.author | Sugaya, Y. | - |
dc.contributor.author | Sumihama, M. | - |
dc.contributor.author | Tsunemi, T. | - |
dc.contributor.author | Uchida, M. | - |
dc.contributor.author | Ungaro, M. | - |
dc.contributor.author | Yosoi, M. | - |
dc.date.accessioned | 2021-09-02T16:00:44Z | - |
dc.date.available | 2021-09-02T16:00:44Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-01-31 | - |
dc.identifier.issn | 2469-9985 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/77915 | - |
dc.description.abstract | We report the measurement of the gamma p -> K+Lambda and gamma p -> K+Sigma(0) reactions at SPring-8. The differential cross sections and photon-beam asymmetries are measured at forward K+ production angles using linearly polarized tagged-photon beams in the range of E-gamma = 1.5-3.0 GeV. With increasing photon energy, the cross sections for both gamma p -> K+Lambda and gamma p -> K+Sigma(0) reactions decrease slowly. Distinct narrow structures in the production cross section have not been found at E gamma = 1.5-3.0 GeV. The forward peaking in the angular distributions of cross sections, a characteristic feature of t-channel exchange, is observed for the production of Lambda in the whole observed energy range. A lack of similar feature for Sigma(0) production reflects a less dominant role of t-channel contribution in this channel. The photon-beam asymmetries remain positive for both reactions, suggesting the dominance of K* exchange in the t channel. These asymmetries increase gradually with the photon energy, and have a maximum value of +0.6 for both reactions. Comparison with theoretical predictions based on the Regge trajectory in the t channel and the contributions of nucleon resonances indicates the major role of t-channel contributions as well as non-negligible effects of nucleon resonances in accounting for the reaction mechanism of hyperon photoproduction in this photon energy regime. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | REACTION GAMMA-P | - |
dc.subject | BARYON RESONANCES | - |
dc.subject | CROSS-SECTION | - |
dc.subject | K+ SIGMA(0) | - |
dc.subject | ENERGIES | - |
dc.subject | HYDROGEN | - |
dc.subject | K+LAMBDA | - |
dc.subject | NUCLEON | - |
dc.subject | 16-GEV | - |
dc.subject | KAON | - |
dc.title | Photoproduction of Lambda and Sigma(0) hyperons off protons with linearly polarized photons at E-gamma=1.5-3.0 GeV | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ahn, J. K. | - |
dc.identifier.doi | 10.1103/PhysRevC.97.015208 | - |
dc.identifier.scopusid | 2-s2.0-85041608228 | - |
dc.identifier.wosid | 000423656700007 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW C, v.97, no.1 | - |
dc.relation.isPartOf | PHYSICAL REVIEW C | - |
dc.citation.title | PHYSICAL REVIEW C | - |
dc.citation.volume | 97 | - |
dc.citation.number | 1 | - |
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, Nuclear | - |
dc.subject.keywordPlus | REACTION GAMMA-P | - |
dc.subject.keywordPlus | BARYON RESONANCES | - |
dc.subject.keywordPlus | CROSS-SECTION | - |
dc.subject.keywordPlus | K+ SIGMA(0) | - |
dc.subject.keywordPlus | ENERGIES | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | K+LAMBDA | - |
dc.subject.keywordPlus | NUCLEON | - |
dc.subject.keywordPlus | 16-GEV | - |
dc.subject.keywordPlus | KAON | - |
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