Study of Non-strange Dibaryon Resonances Via Coherent Double Neutral-Meson Photoproduction from the Deuteron

T. Ishikawa, H. Fujimura, H. Fukasawa, R. Hashimoto, Q. He, Y. Honda, T. Iwata, S. Kaida, H. Kanda, A. Kawano, S. Kuwasaki, K. Maeda, S. Masumoto, M. Miyabe, F. Miyahara, K. Mochizuki, N. Muramatsu, A. Nakamura, K. Nawa, S. OgushiY. Okada, K. Okamura, 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: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The non-strange (formula presented) system (dibaryon) has been studied using coherent neutral-meson photoproduction from the deuteron, (formula presented) and (formula presented), measured with the FOREST detector at the ELPH facility. A rather flat angular distribution of deuteron emission and a peak in the (formula presented) invariant-mass distribution give evidence for the 2.15-GeV isovector dibaryon. The excitation function of the total cross section as a function of the (formula presented) center-of-mass energy for the former reaction shows the evidence for the existence of 2.47- and 2.63-GeV isoscalar dibaryons.

Original languageEnglish
Title of host publicationRecent Progress in Few-Body Physics - Proceedings of the 22nd International Conference on Few-Body Problems in Physics, FB22 2018
EditorsN.A. Orr, F.M. Marqués, M. Ploszajczak, J. Carbonell
PublisherSpringer
Pages609-613
Number of pages5
ISBN (Print)9783030323561
DOIs
Publication statusPublished - 2020
Event22nd International Conference on Few-Body Problems in Physics, FB22 2018 - Caen, France
Duration: 2018 Jul 92018 Jul 13

Publication series

NameSpringer Proceedings in Physics
Volume238
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference22nd International Conference on Few-Body Problems in Physics, FB22 2018
CountryFrance
CityCaen
Period18/7/918/7/13

Keywords

  • Dibaryons
  • Meson photoproduction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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