Measurement of the 3-α decay from the Hoyle and the broad 10 MeV states in12C

M. Itoh, S. Ando, T. Aoki, H. Arikawa, S. Ezure, Kenichi Harada, T. Hayamizu, T. Inoue, T. Ishikawa, K. Kato, Hirokazu Kawamura, Yasuhiro Sakemi, A. Uchiyama

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Abstract

The measurements of the 3-α decay from the Hoyle and the broad 10 MeV state in12C have been performed using an inverse kinematic method of the12C(12C,3α)12C reaction at E12C = 110 MeV. In the measurement of the Hoyle state, the upper limit of the direct decay was improved to be 0.2 %. This was inconsistent with the recent reported nonzero value of 0.9 %, but an order larger than the direct decay branch predicted in the 3-α model. The branching ratios of the sequtial decay for the broad 10 MeV state were also obtained. They were higher than those obtained in the RCNP experiment, since they contained the contributions of higer multipole components. Their contributions will be estimated.

Original languageEnglish
Article number012019
JournalJournal of Physics: Conference Series
Volume863
Issue number1
DOIs
Publication statusPublished - 2017 Jul 4
Event11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, CLUSTER 2016 - Napoli, Italy
Duration: 2016 May 232016 May 27

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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