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Backward-angle photoproduction of omega and eta ' mesons from protons in the photon energy range from 1.5 to 3.0 GeV
- Authors
- 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.; Date, 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.
- Issue Date
- Jan-2015
- Publisher
- OXFORD UNIV PRESS INC
- Keywords
- D24; D25
- Citation
- PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, v.2015, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
- Volume
- 2015
- Number
- 1
- ISSN
- 2050-3911
- Abstract
- We report the measurement of differential cross sections for omega and eta' photoproduction from protons at backward angles (-1.0 < cos Theta(X)(C. M) < -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 <= root s <= 2.4 GeV. The differential cross sections for omega and eta' mesons become closer to the predicted u-channel contribution at root s > 2.4 GeV. A bump structure in the root s dependence of the differential cross sections for eta' mesons was observed at root s similar to 2.35 GeV.
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Related Researcher
- Ahn, Jung Keun
- College of Science (Department of Physics)