Enhanced radiative strength in the quasi-continuum of 117Sn

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

doi:10.1103/PhysRevLett.102.162504

Enhanced radiative strength in the quasi-continuum of 117Sn

Nuclear Experiment 2009-06-16 v3

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

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Abstract

Radiative strength functions of 117Sn has been measured below the neutron separation energy using the (3He,3He'gamma) reactions. An increase in the slope of the strength functions around E_gamma= 4.5 MeV indicates the onset of a resonance-like structure, giving a significant enhancement of the radiative strength function compared to standard models in the energy region 4.5 <= E_gamma <= 8.0 MeV. For the first time, the functional form of this resonance-like structure has been measured in an odd tin nucleus below neutron threshold in the quasi-continuum region.

Keywords

radiative strength function quasi-continuum tin-117 resonance-like structure nuclear reaction gamma-ray spectroscopy

Cite

@article{arxiv.0808.3648,
  title  = {Enhanced radiative strength in the quasi-continuum of 117Sn},
  author = {U. Agvaanluvsan and A. C. Larsen and R. Chankova and M. Guttormsen and G. E. Mitchell and A. Schiller and S. Siem and A. Voinov},
  journal= {arXiv preprint arXiv:0808.3648},
  year   = {2009}
}

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4 pages, 3 figures

Enhanced radiative strength in the quasi-continuum of 117Sn

Abstract

Keywords

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