Tensor Force Manifestations in Ab Initio Study of the H2(d,γ)He4, H2(d,p)H3, and H2(d,n)He3 Reactions

K. Arai, S. Aoyama, Y. Suzuki, P. Descouvemont, and D. Baye
Phys. Rev. Lett. 107, 132502 – Published 23 September 2011


The H2(d,p)H3, H2(d,n)He3, and H2(d,γ)He4 reactions are studied at low energies in a multichannel ab initio model that takes into account the distortions of the nuclei. The internal wave functions of these nuclei are given by the stochastic variational method with the AV8 realistic interaction and a phenomenological three-body force included to reproduce the two-body thresholds. The obtained astrophysical S factors are all in very good agreement with the experiment. The most important channels for both transfer and radiative capture are identified by comparing to calculations with an effective central force. They are all found to dominate thanks to the tensor force.

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  • Received 20 June 2011


© 2011 American Physical Society

Authors & Affiliations

K. Arai1,*, S. Aoyama2, Y. Suzuki3,4, P. Descouvemont5, and D. Baye6,5

  • 1Division of General Education, Nagaoka National College of Technology, 888 Nishikatakai, Nagaoka, Niigata 940-8532, Japan
  • 2Center for Academic Information Service, Niigata University, Niigata 950-2181, Japan
  • 3Physics Department, Niigata University, Niigata 950-2181, Japan
  • 4RIKEN Nishina Center, Wako 351-0198, Japan
  • 5Physique Nucléaire Théorique et Physique Mathématique, C.P.229, Université Libre de Bruxelles, B-1050 Brussels, Belgium
  • 6Physique Quantique, CP165/82, Université Libre de Bruxelles, B-1050 Brussels, Belgium

  • *arai@nagaoka-ct.ac.jp

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Vol. 107, Iss. 13 — 23 September 2011

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