Double neutral pion photoproduction off the proton with FOREST at ELPH

Q. He, H. Fujimura, H. Fukasawa, R. Hashimoto, Y. Honda, T. Ishikawa, T. Iwata, S. Kaida, J. Kasagi, A. Kawano, S. Kuwasaki, K. Maeda, S. Masumoto, M. Miyabe, F. Miyahara, K. Mochizuki, N. Muramatsu, A. Nakamura, K. Nawa, S. OgushiY. Okada, Y. Onodera, K. Ozawa, Y. Sakamoto, M. Sato, H. Shimizu, H. Sugai, K. Suzuki, Y. Tajima, S. Takahashi, Y. Taniguchi, Y. Tsuchikawa, H. Yamazaki, R. Yamazaki, H. Y. Yoshida

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Total cross section for the double neutral pion photoproduction off the proton is presented in the incident photon energy range of 0.58 to 1.15 GeV. The data were accumulated in the years 2009-2010, recorded by a 4π EM calorimeter at ELPH, named FOREST. The number of recorded events obtained during this period is 1.6×109 for a hydrogen target. Two neutral pions are reconstructed via detecting their decay products, four gammas (2π0 → 4γ). Compared to the previous results obtained by other groups, our data are in good agreement with theirs within error bars.

Original languageEnglish
Article number04004
JournalEPJ Web of Conferences
Publication statusPublished - 2016 Feb 12
Event13th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2015 - Beijing, China
Duration: 2015 Jun 242015 Jun 27


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