Experimental results of K+ photoproduction at SPring-8/LEPS

M. Sumiham, D. S. Ahn, J. K. Ahn, H. Akimune, Y. Asano, W. C. Chang, S. Date, H. Ejiri, H. Fujimura, M. Fujiwara, K. Hicks, T. Hotta, K. Imai, T. Ishikawa, T. Iwata, H. Kawai, Z. Y. Kim, K. Kino, H. Kohri, N. KumagaiS. Makino, T. Matsumura, N. Matsuoka, T. Mibe, K. Miwa, M. Miyabe, Y. Miyachi, M. Morita, N. Muramatsu, T. Nakano, M. Niiyama, M. Nomachi, Y. Ohashi, T. Ooba, H. Ookuma, D. S. Oshuev, C. Rangacharyulu, A. Sakaguchi, T. Sasaki, P. M. Shagin, Y. Shiino, Y. Sugaya, H. Toyokawa, A. Wakai, C. W. Wang, S. C. Wang, K. Yonehara, T. Yorita, M. Yosoi, R. G.T. Zegers

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Abstract

Photon beam asymmetries for the γ p → K+ Λ and γ p → K+ Σ0 reactions have been measured for the photon energy range from 1.5 GeV to 2.4 GeV and for the angular range of 0 ° < ΘcmK+ < 60 ° at the SPring-8/LEPS facility. The observed asymmetries are found to be positive and increase with increasing the photon energy. Present theoretical calculations do not reproduce the data. To extend our knowledge on the K+ photoproduction mechanism including the effect of nucleon resonances, further theoretical development is required to fit both the cross section and asymmetry data.

Original languageEnglish
Pages (from-to)303c-309c
JournalNuclear Physics A
Volume754
Issue number1-4 SPEC. ISS.
DOIs
Publication statusPublished - 2005 May 30

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Sumiham, M., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., Date, S., Ejiri, H., Fujimura, H., Fujiwara, M., Hicks, K., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., Kawai, H., Kim, Z. Y., Kino, K., Kohri, H., ... Zegers, R. G. T. (2005). Experimental results of K+ photoproduction at SPring-8/LEPS. Nuclear Physics A, 754(1-4 SPEC. ISS.), 303c-309c. https://doi.org/10.1016/j.nuclphysa.2005.02.079