Photoproduction of η-mesons off C and Cu nuclei for photon energies below 1.1 GeV

T. Kinoshita, H. Yamazaki, H. Fukasawa, K. Hirota, T. Ishikawa, J. Kasagi, A. Kato, T. Katsuyama, K. Kino, F. Miyahara, T. Nakabayashi, K. Nawa, K. Okamura, Y. Saitoh, K. Satou, M. Sengoku, H. Shimizu, K. Suzuki, S. Suzuki, T. TerasawaH. Kanda, K. Maeda, T. Takahashi, Y. Aruga, T. Fujinoya, A. Iijima, M. Itaya, Y. Ito, T. Iwata, H. Kato, T. Kawamura, T. Michigami, M. Moriya, T. Sasaki, Y. Tajima, S. Takita, T. Noma, M. Yamamoto, H. Y. Yoshida, Y. Yoshida, O. Konno, T. Maruyama, T. Yorita

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20 Citations (Scopus)

Abstract

The η-meson photoproduction cross sections have been measured on C and Cu targets for the photon energies between 600 and 1100 MeV to investigate the behavior of the S11 (1535) resonance in a nucleus. The excitation functions of the cross section as well as the angular and momentum distributions of η-mesons are in quantitative agreement with the Quantum Molecular Dynamics (QMD) model calculations in which the η-meson emission processes other than the S11 (1535) resonance are also incorporated. It is shown that the η production in the γ N → π η N reaction and the D15 (1675) resonance formation in the γ n → η n reaction play an important role for Eγ > 900   MeV.

Original languageEnglish
Pages (from-to)429-435
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume639
Issue number5
DOIs
Publication statusPublished - 2006 Aug 17

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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