High-resolution study of the 18Ne excited states relevant to the hot CNO cycle

S. H. Park, S. Kubono, K. I. Hahn, C. S. Lee, J. C. Kim, P. Strasser, S. C. Jeong, M. H. Tanaka, C. Lee, J. H. Lee, S. Kato, T. Miyachi, H. Kawashima, H. Utsunomiya, M. Yasue, M. Kurokawa, Y. Fuchi, X. Liu, K. Abe, K. Kumagai, M. S. Smith, and P. D. Parker
Phys. Rev. C 59, 1182 – Published 1 February 1999
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Abstract

The 20Ne(p,t)18Ne reaction has been studied in order to investigate the properties of 18Ne excited states. A missing 3+ state of 18Ne, which could have a great influence on the 17F(p,γ)18Ne reaction rate, was searched for, but the existence of this state was not clearly verified. The spins and parities of the 5.11- and 5.15-MeV states were assigned tentatively by angular distribution measurements, as 2+ and 3, respectively. We were able to resolve the doublets at 4.5, 5.1, and 6.3 MeV clearly for the first time due to our high precision system, which allowed us to determine the widths of some critical states above the proton threshold of 18Ne more precisely.

  • Received 8 June 1998

DOI:https://doi.org/10.1103/PhysRevC.59.1182

©1999 American Physical Society

Authors & Affiliations

S. H. Park1, S. Kubono2, K. I. Hahn3, C. S. Lee4, J. C. Kim1, P. Strasser3, S. C. Jeong5, M. H. Tanaka5, C. Lee1, J. H. Lee4, S. Kato6, T. Miyachi2, H. Kawashima2, H. Utsunomiya7, M. Yasue8, M. Kurokawa3, Y. Fuchi5, X. Liu2, K. Abe2,9, K. Kumagai2,10, M. S. Smith11, and P. D. Parker12

  • 1Department of Physics, Seoul National University, Seoul 151-742, South Korea
  • 2Center for Nuclear Study (CNS), University of Tokyo, 3-2-1 Midoricho, Tanashi, Tokyo 188, Japan
  • 3RIKEN, Hirosawa, 2-1 Wako, Saitama 351-01, Japan
  • 4Department of Physics, Chung-Ang University, Seoul 156-756, South Korea
  • 5IPNP-Tanashi, KEK, Tanashi, Tokyo 188, Japan
  • 6Physics Department, Yamagata University, Yamagata 990, Japan
  • 7Department of Physics, Konan University, Higashi-Nada, Kobe 658, Japan
  • 8Miyagi University of Education, Aoba-ku, Sendai 980, Japan
  • 9Physics Department, Yamagata University, Yamagata 990, Japan
  • 10Physics Department, Tohoku University, Sendai 980, Japan
  • 11Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6354
  • 12Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8124

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Vol. 59, Iss. 2 — February 1999

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