Backward-angle photoproduction of and ' mesons from protons in the photon energy range from 1.5 to 3.0 GeV
Year: 2015
Type: article
Abstract: 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.
DOI: 10.1093/ptep/ptu167
Authors: Y. Morino, Y. Nakatsugawa, M. Yosoi, M. Niiyama, M. Sumihama, T. Nakano, D. S. Ahn, J. K. Ahn, S. Ajimura, W. C. Chang, J. Y. Chen, S. Date, H. Fujimura, S. Fukui, K. Hicks, T. Hiraiwa, T. Hotta, S. H. Hwang, K. Imai, T. Ishikawa, Y. Kato, H. Kawai, M. J. Kim, H. Kohri, Y. Kon, P. J. Lin, K. Mase, Y. Maeda, M. Miyabe, N. Muramatsu, H. Noumi, Y. Ohashi, T. Ohta, M. Oka, J. D. Parker, C. Rangacharyulus, S. Y. Ryu, T. Saito, T. Sawada, H. Shimizu, E. A. Strokovsky, Y. Sugaya, K. Suzuki, K. Tanida, A. Tokiyasu, T. Tomioka, T. Tsunemi, M. Uchida, R. Yamamura, T. Yorita
Institutions: RIKEN Nishina Center, Research Center for Nuclear Physics, The University of Osaka, The University of Osaka, High Energy Accelerator Research Organization, Kyoto University, Gifu University, Pusan National University, Korea University, Institute of Physics, Academia Sinica, Academia Sinica, Japan Synchrotron Radiation Research Institute, Wakayama Medical University, Nagoya University, Ohio University Lancaster, Ohio University, Japan Atomic Energy Agency, Tohoku University, Chiba University, Seoul National University, Fukui Prefectural Hospital, University of Saskatchewan, Joint Institute for Nuclear Research, Tokyo Institute of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $979
OpenAlex ID: W2137880901