Backward-angle photoproduction of ω and ν ′ mesons from protons in the photon energy range from 1.5 to 3.0 GeV

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题名:	Backward-angle photoproduction of ω and ν ′ mesons from protons in the photon energy range from 1.5 to 3.0 GeV
作者:	林伯儒;Morino, Y.;Nakatsugawa, Y.;Yosoi, M.;Niiyama, M.;Sumihama, M.;Nakano, T.;Ahn, D. S.;Ahn, J. K.;Ajimura, S.;Chang, W. C.;Chen, J. Y.;Daté, S.;Fujimura, H.;Fukui, S.;Hicks, K.;Hiraiwa, T.;Hotta, T.;Hwang, S. H.;Imai, K.;Ishikawa, T.;Kato, Y.;Kawai, H.;Kim, M. J.;Kohri, H.;Kon, Y.;Lin, P. J.;Mase, K.;Maeda, Y.;Miyabe, M.;Muramatsu, N.;Noumi, H.;Ohashi, Y.;Ohta, T.;Oka, M.;Parker, J. D.;Rangacharyulus, C.;Ryu, S. Y.;Saito, T.;Sawada, T.;Shimizu, H.;Strokovsky, E. A.;Sugaya, Y.;Suzuki, K.;Tanida, K.;Tokiyasu, A.;Tomioka, T.;Tsunemi, T.;Uchida, M.;Yamamura, R.;Yorita, T.
贡献者:	理學院物理學系
日期:	2015-01-01
上传时间:	2026-04-23 11:43:43 (UTC+8)
出版者:	Oxford University Press;Oxford: Oxford University Press
摘要:	摘要： We report the measurement of differential cross sections for $\omega$ and $\eta '$ photoproduction from protons at backward angles ($-1.0\lt \cos \Theta _{C.M}^{X}\lt -0.8$) using linearly polarized photons at $E_{\gamma }=1.5$–$3.0$GeV. The differential cross sections for $\omega$ mesons are larger than the predicted $u$-channel contribution based on amplitude analysis in the energy range $2.0\leq \sqrt {s}\leq 2.4$GeV. The differential cross sections for $\omega$ and $\eta '$ mesons become closer to the predicted $u$-channel contribution at $\sqrt {s}>2.4$GeV. A bump structure in the $\sqrt {s}$ dependence of the differential cross sections for $\eta '$ mesons was observed at $\sqrt {s}\sim 2.35$GeV. 出版者： Oxford: Oxford University Press 出版日期： 2015-01-01 出處： Progress of theoretical and experimental physics, 2015-01, Vol.2015 (1) 資源來源： Oxford Journals Open Access Collection 版權： The Author(s) 2015. Published by Oxford University Press on behalf of the Physical Society of Japan. 2015 版權： The Author(s) 2015. Published by Oxford University Press on behalf of the Physical Society of Japan. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： EISSN: 2050-3911 識別號： DOI: 10.1093/ptep/ptu167
显示于类别:	[物理學系] 期刊論文

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