EPJ Web of Conferences (Jan 2016)
Double neutral pion photoproduction off the proton with FOREST at ELPH
- He Q.,
- Fujimura H.,
- Fukasawa H.,
- Hashimoto R.,
- Honda Y.,
- Ishikawa T.,
- Iwata T.,
- Kaida S.,
- Kasagi J.,
- Kawano A.,
- Kuwasaki S.,
- Maeda K.,
- Masumoto S.,
- Miyabe M.,
- Miyahara F.,
- Mochizuki K.,
- Muramatsu N.,
- Nakamura A.,
- Nawa K.,
- Ogushi S.,
- Okada Y.,
- Onodera Y.,
- Ozawa K.,
- Sakamoto Y.,
- Sato M.,
- Shimizu H.,
- Sugai H.,
- Suzuki K.,
- Tajima Y.,
- Takahashi S.,
- Taniguchi Y.,
- Tsuchikawa Y.,
- Yamazaki H.,
- Yamazaki R.,
- Yoshida H. Y.
Affiliations
- He Q.
- Research Center for Electron Photon Science, Tohoku University
- Fujimura H.
- Department of Physics, Yamagata University
- Fukasawa H.
- Department of Information Science, Tohoku Gakuin University
- Hashimoto R.
- Research Center for Electron Photon Science, Tohoku University
- Honda Y.
- Research Center for Electron Photon Science, Tohoku University
- Ishikawa T.
- Research Center for Electron Photon Science, Tohoku University
- Iwata T.
- Department of Physics, Yamagata University
- Kaida S.
- Research Center for Electron Photon Science, Tohoku University
- Kasagi J.
- Research Center for Electron Photon Science, Tohoku University
- Kawano A.
- Department of Information Science, Tohoku Gakuin University
- Kuwasaki S.
- Research Center for Electron Photon Science, Tohoku University
- Maeda K.
- Department of Physics, Tohoku University
- Masumoto S.
- Department of Physics, University of Tokyo
- Miyabe M.
- Research Center for Electron Photon Science, Tohoku University
- Miyahara F.
- Research Center for Electron Photon Science, Tohoku University
- Mochizuki K.
- Research Center for Electron Photon Science, Tohoku University
- Muramatsu N.
- Research Center for Electron Photon Science, Tohoku University
- Nakamura A.
- Research Center for Electron Photon Science, Tohoku University
- Nawa K.
- Research Center for Electron Photon Science, Tohoku University
- Ogushi S.
- Research Center for Electron Photon Science, Tohoku University
- Okada Y.
- Research Center for Electron Photon Science, Tohoku University
- Onodera Y.
- Research Center for Electron Photon Science, Tohoku University
- Ozawa K.
- Institute of Particle and Nuclear Studies, KEK
- Sakamoto Y.
- Department of Information Science, Tohoku Gakuin University
- Sato M.
- Research Center for Electron Photon Science, Tohoku University
- Shimizu H.
- Research Center for Electron Photon Science, Tohoku University
- Sugai H.
- Research Center for Electron Photon Science, Tohoku University
- Suzuki K.
- Research Center for Electron Photon Science, Tohoku University
- Tajima Y.
- Department of Physics, Yamagata University
- Takahashi S.
- Research Center for Electron Photon Science, Tohoku University
- Taniguchi Y.
- Research Center for Electron Photon Science, Tohoku University
- Tsuchikawa Y.
- Research Center for Electron Photon Science, Tohoku University
- Yamazaki H.
- Research Center for Electron Photon Science, Tohoku University
- Yamazaki R.
- Research Center for Electron Photon Science, Tohoku University
- Yoshida H. Y.
- Department of Physics, Yamagata University
- DOI
- https://doi.org/10.1051/epjconf/201610904004
- Journal volume & issue
-
Vol. 109
p. 04004
Abstract
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.
