Evidence for the pair-breaking process in 116,117Sn

U. Agvaanluvsan; A. C. Larsen; M. Guttormsen; R. Chankova; G. E. Mitchell; A. Schiller; S. Siem; A. Voinov

doi:10.1103/PhysRevC.79.014320

Evidence for the pair-breaking process in 116,117Sn

Nuclear Experiment 2009-04-28 v2

Authors: U. Agvaanluvsan , A. C. Larsen , M. Guttormsen , R. Chankova , G. E. Mitchell , A. Schiller , S. Siem , A. Voinov

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Abstract

The nuclear level densities of 116,117Sn below the neutron separation energy have been determined experimentally from the (3He,alpha gamma) and (3He,3He gamma') reactions, respectively. The level densities show a characteristic exponential increase and a difference in magnitude due to the odd-even effect of the nuclear systems. In addition, the level densities display pronounced step-like structures that are interpreted as signatures of subsequent breaking of nucleon pairs.

Keywords

nuclear physics nuclear reactions nuclear structure

Cite

@article{arxiv.0810.4406,
  title  = {Evidence for the pair-breaking process in 116,117Sn},
  author = {U. Agvaanluvsan and A. C. Larsen and M. Guttormsen and R. Chankova and G. E. Mitchell and A. Schiller and S. Siem and A. Voinov},
  journal= {arXiv preprint arXiv:0810.4406},
  year   = {2009}
}

Comments

7 pages, 5 figures, accepted for publication in Phys. Rev. C, 22 December 2008

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