First measurement of coherent double neutral-pion photoproduction on the deuteron at incident energies below 0.9 GeV

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

研究成果: Article査読

19 被引用数 (Scopus)

抄録

The total cross sections were measured for coherent double neutral-pion photoproduction on the deuteron at incident energies below 0.9 GeV for the first time. No clear resonance-like behavior is observed in the excitation function for Wγd=2.38–2.61 GeV, where the d(2380) dibaryon resonance observed at COSY is expected to appear. The measured excitation function is consistent with the existing theoretical calculation for this reaction. The upper limit of the total cross section is found to be 0.034 μb for the dibaryon resonance at Wγd=2.37 GeV (90% confidence level) in the γd→π0π0d reaction.

本文言語English
ページ(範囲)398-402
ページ数5
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
772
DOI
出版ステータスPublished - 2017 9 10

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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