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

Morino, Yuhei*; Hwang, S.; Imai, Kenichi; Tanida, Kiyoshi ; LEPS Collaboration*; 46 of others*

We report the measurement of differential cross sections for and photoproduction from protons at backward angles ( $-1.0 < cos Theta_{C.M}^{X} < -0.8$ ) using linearly polarized photons at $E_{gamma }=1.5$ - GeV. The differential cross sections for mesons are larger than the predicted -channel contribution based on amplitude analysis in the energy range GeV. The differential cross sections for and mesons become closer to the predicted -channel contribution at GeV. A bump structure in the dependence of the differential cross sections for mesons was observed at GeV.

Language	:	English
Journal	:	Progress of Theoretical and Experimental Physics (Internet)
Volume	:	2015
Number	:	1
Pages	:	p.013D01_1 - 013D01_11
Publication Year/Month	:	2015/01
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PDF	:	AA2015-0719.pdf:1.08MB
Paper URL	:	https://doi.org/10.1093/ptep/ptu167
DOI for research data	:
Keywords	:	ハドロン分光
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Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	大阪大学

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Registration No. : AA20150719
JAEA Abstracts No. : 44000249
Paper Submission No. : 16938

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