Candidates for the 5α condensed state in 20Ne

S. Adachi, Y. Fujikawa, T. Kawabata, H. Akimune, T. Doi, T. Furuno, T. Harada, K. Inaba, S. Ishida, M. Itoh, C. Iwamoto, N. Kobayashi, Y. Maeda, Yohei Matsuda, M. Murata, S. Okamoto, A. Sakaue, R. Sekiya, A. Tamii, M. Tsumura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We conducted the coincidence measurement of α particles inelastically scattered from 20Ne at 0° and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at Ex=23.6, 21.8, and 21.2 MeV in 20Ne are strongly coupled to a candidate for the 4α condensed state in 16O. This result presents the first strong evidence that these states are the candidates for the 5α condensed state.

Original languageEnglish
Article number136411
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume819
DOIs
Publication statusPublished - 2021 Aug 10

Keywords

  • Alpha decay
  • Alpha-particle condensed state
  • Cluster structure
  • Inelastic alpha scattering
  • Ne

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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