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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
1월-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
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/132765
DOI
10.1093/ptep/ptu167
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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