Differential Cross Section and Photon-Beam Asymmetry for the gamma(->)p -> Pi(-)Delta(+ +) (1232) Reaction at Forward Pi(-) Angles for E-gamma=1.5-2.95 GeV
DC Field | Value | Language |
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dc.contributor.author | Kohri, H. | - |
dc.contributor.author | Shiu, S. H. | - |
dc.contributor.author | Chang, W. C. | - |
dc.contributor.author | Yanai, Y. | - |
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 | Hosaka, A. | - |
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 | Morino, Y. | - |
dc.contributor.author | Muramatsu, N. | - |
dc.contributor.author | Nakano, T. | - |
dc.contributor.author | Nakatsugawa, Y. | - |
dc.contributor.author | Nam, S., I | - |
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 | Strokovsky, E. A. | - |
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 | Wang, S. Y. | - |
dc.contributor.author | Yosoi, M. | - |
dc.date.accessioned | 2021-09-02T11:26:58Z | - |
dc.date.available | 2021-09-02T11:26:58Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2018-05-18 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/75511 | - |
dc.description.abstract | Differential cross sections and photon-beam asymmetries for the gamma(->)p -> Pi(-)Delta(++)(1232) reaction have been measured for 0.7 < cos Theta(c.m.)(Pi) < 1 and E-gamma= 1.5-2.95 GeV at SPring-8/LEPS. The first-ever high statistics cross-section data are obtained in this kinematical region, and the asymmetry data for 1.5 < E-gamma(GeV) < 2.8 are obtained for the first time. This reaction has a unique feature for studying the production mechanisms of a pure uu quark pair in the final state from the proton. Although there is no distinct peak structure in the cross sections, a non-negligible excess over the theoretical predictions is observed at E-gamma= 1.5-1.8 GeV. The asymmetries are found to be negative in most of the present kinematical regions, suggesting the dominance of n exchange in the t channel. The negative asymmetries at forward meson production angles are different from the asymmetries previously measured for the photoproduction reactions producing a dd(-) or an ss quark pair in the final state. Advanced theoretical models introducing nucleon resonances and additional unnatural-parity exchanges are needed to reproduce the present data. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | PSEUDOSCALAR-MESON PHOTOPRODUCTION | - |
dc.subject | POLARIZED PHOTONS | - |
dc.subject | HYDROGEN | - |
dc.subject | ENERGIES | - |
dc.subject | DEUTERIUM | - |
dc.subject | BARYONS | - |
dc.subject | PROTON | - |
dc.subject | ETA | - |
dc.title | Differential Cross Section and Photon-Beam Asymmetry for the gamma(->)p -> Pi(-)Delta(+ +) (1232) Reaction at Forward Pi(-) Angles for E-gamma=1.5-2.95 GeV | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ahn, J. K. | - |
dc.identifier.doi | 10.1103/PhysRevLett.120.202004 | - |
dc.identifier.scopusid | 2-s2.0-85047412655 | - |
dc.identifier.wosid | 000433032500005 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW LETTERS, v.120, no.20 | - |
dc.relation.isPartOf | PHYSICAL REVIEW LETTERS | - |
dc.citation.title | PHYSICAL REVIEW LETTERS | - |
dc.citation.volume | 120 | - |
dc.citation.number | 20 | - |
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.subject.keywordPlus | PSEUDOSCALAR-MESON PHOTOPRODUCTION | - |
dc.subject.keywordPlus | POLARIZED PHOTONS | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | ENERGIES | - |
dc.subject.keywordPlus | DEUTERIUM | - |
dc.subject.keywordPlus | BARYONS | - |
dc.subject.keywordPlus | PROTON | - |
dc.subject.keywordPlus | ETA | - |
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