Photoproduction of Positive and Negative Pions from Protons in the Energy Range from 710 MeV to 950 MeV

Koichi Maruyama; Hirofumi Fujii; Saburo Homma; Hideki Okuno; Nobuyuki Yamashita; Ichiro Arai; Hirokazu Ikeda; Akifumi Itano; Eiichi Ohshima; Yoshimoto Hoshi; Takanobu Ishii; Atsushi Sasaki

doi:10.1143/JPSJ.46.1403

Koichi Maruyama, Hirofumi Fujii, Saburo Homma, Hideki Okuno, Nobuyuki Yamashita, Ichiro Arai, Hirokazu Ikeda, Akifumi Itano, Eiichi Ohshima, Yoshimoto Hoshi, Takanobu Ishii, Atsushi Sasaki

著者情報

Koichi Maruyama
Department of Physics, Kyoto University
Hirofumi Fujii
Institute for Nuclear Study, University of Tokyo
Saburo Homma
Institute for Nuclear Study, University of Tokyo
Hideki Okuno
Institute for Nuclear Study, University of Tokyo
Nobuyuki Yamashita
Institute for Nuclear Study, University of Tokyo
Ichiro Arai
Department of Physics, University of Tokyo
Hirokazu Ikeda
Department of Physics, University of Tokyo
Akifumi Itano
Department of Physics, University of Tokyo
Eiichi Ohshima
Department of Physics, University of Tokyo
Yoshimoto Hoshi
Department of Physics, Waseda University
Takanobu Ishii
Department of Physics, Kyoto University
Atsushi Sasaki
Department of Physics, Faculty of Education, Akita University

ジャーナル認証あり

1979 年 46 巻 5 号 p. 1403-1411

DOI https://doi.org/10.1143/JPSJ.46.1403

詳細

抄録

The momentum spectra of the photoproduced positive and negative pions from the reaction γp→ππN have been measured using a tagged photon beam in the energy range from 710 MeV to 950 MeV. A magnetic spectrometer at 40° in the laboratory system is used to detect positive and negative pions. A hodoscope array which surrounded the liquid hydrogen target was used to identify the double pion photoproduction process. From the measured momentum spectra, the cross sections of the reaction, γ+p→Δ+π were extracted. The results are well reproduced by the coherent sum of GIOPE rnodel and s-channel resonance contributions.

責任著者(Corresponding author)

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