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| 題名: | 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. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2015-01-01 |
| 上傳時間: | 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 |
| 顯示於類別: | [物理學系] 期刊論文
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