Differential cross sections, photon beam asymmetries, and spin density matrix elements of omega photoproduction off the proton at E-gamma=1.3-2.4 GeV

Muramatsu, N.; Ahn, J. K.; Chang, W. C.; Chen, J. Y.; Chu, M. L.; Date, S.; Gogami, T.; Goto, H.; Hamano, H.; Hashimoto, T.; He, Q. H.; Hicks, K.; Hiraiwa, T.; Honda, Y.; Hotta, T.; Ikuno, H.; Inoue, Y.; Ishikawa, T.; Jaegle, I; Jo, J. M.; Kasamatsu, Y.; Katsuragawa, H.; Kido, S.; Kon, Y.; Masumoto, S.; Matsumura, Y.; Miyabe, M.; Mizutani, K.; Nakamura, T.; Nakano, T.; Nam, T.; Ngan, T. N. T.; Niiyama, M.; Nozawa, Y.; Ohashi, Y.; Ohnishi, H.; Ohta, T.; Ozawa, K.; Rangacharyulu, C.; Ryu, S. Y.; Sada, Y.; Shibukawa, T.; Shimizu, H.; Shirai, R.; Shiraishi, K.; Strokovsky, E. A.; Sugaya, Y.; Sumihama, M.; Suzuki, S.; Tanaka, S.; Taniguchi, Y.; Tokiyasu, A.; Tomida, N.; Tsuchikawa, Y.; Ueda, T.; Yamazaki, H.; Yamazaki, R.; Yanai, Y.; Yorita, T.; Yoshida, C.; Yosoi, M.

doi:10.1103/PhysRevC.102.025201

상세 보기

Differential cross sections, photon beam asymmetries, and spin density matrix elements of omega photoproduction off the proton at E-gamma=1.3-2.4 GeV

Muramatsu, N.;
Ahn, J. K.;
Chang, W. C.;
Chen, J. Y.;
Chu, M. L.;
외 56명

Citations

WEB OF SCIENCE

11

Citations

SCOPUS

9

초록

For the reaction gamma p -> omega p, differential cross sections, photon beam asymmetries, and spin density matrix elements have been measured in the BGOegg experiment at the SPring-8 LEPS2 beamline by using a large acceptance electromagnetic calorimeter. A 1.3-2.4 GeV photon beam with high linear polarization has enabled a precision measurement of photon beam asymmetries Sigma and polarized spin density matrix elements rho(1)(1-1) over a wide angular range, especially above the total energy of about 2 GeV for the first time. The measured p(1-1)(1) indicates the dominance of s-channel resonances even at higher energies. The Sigma values at backward angles are not reproduced by the existing partial-wave analysis in the highest-energy region, providing new constraints to the contribution of nucleon resonances with high spins.

제목: Differential cross sections, photon beam asymmetries, and spin density matrix elements of omega photoproduction off the proton at E-gamma=1.3-2.4 GeV

저자: Muramatsu, N.; Ahn, J. K.; Chang, W. C.; Chen, J. Y.; Chu, M. L.; Date, S.; Gogami, T.; Goto, H.; Hamano, H.; Hashimoto, T.; He, Q. H.; Hicks, K.; Hiraiwa, T.; Honda, Y.; Hotta, T.; Ikuno, H.; Inoue, Y.; Ishikawa, T.; Jaegle, I; Jo, J. M.; Kasamatsu, Y.; Katsuragawa, H.; Kido, S.; Kon, Y.; Masumoto, S.; Matsumura, Y.; Miyabe, M.; Mizutani, K.; Nakamura, T.; Nakano, T.; Nam, T.; Ngan, T. N. T.; Niiyama, M.; Nozawa, Y.; Ohashi, Y.; Ohnishi, H.; Ohta, T.; Ozawa, K.; Rangacharyulu, C.; Ryu, S. Y.; Sada, Y.; Shibukawa, T.; Shimizu, H.; Shirai, R.; Shiraishi, K.; Strokovsky, E. A.; Sugaya, Y.; Sumihama, M.; Suzuki, S.; Tanaka, S.; Taniguchi, Y.; Tokiyasu, A.; Tomida, N.; Tsuchikawa, Y.; Ueda, T.; Yamazaki, H.; Yamazaki, R.; Yanai, Y.; Yorita, T.; Yoshida, C.; Yosoi, M.

DOI: 10.1103/PhysRevC.102.025201

발행일: 2020-08-03

유형: Article

저널명: Physical Review C - Nuclear Physics

권: 102

호: 2