Experimentally constrained (p,γ)89 and (n,γ)89 reaction rates relevant to p-process nucleosynthesis

Larsen, A. C. and Guttormsen, M. and Schwengner, R. and Bleuel, D. L. and Goriely, S. and Tornyi, Tamás Gábor (2016) Experimentally constrained (p,γ)89 and (n,γ)89 reaction rates relevant to p-process nucleosynthesis. PHYSICAL REVIEW C, 93 (4). ISSN 2469-9985

Preview

Text 1510.00969.pdf Available under License Creative Commons Attribution. Download (1MB) | Preview

Abstract

The nuclear level density and the γ-ray strength function have been extracted for Y89 by using the Oslo method on Y89(p,p′γ)Y89 coincidence data. The γ-ray strength function displays a low-energy enhancement consistent with previous observations in this mass region (Mo93-98). Shell-model calculations support the conclusion that the observed enhancement is due to strong, low-energy M1 transitions at high excitation energies. The data were further used as input for calculations of the Sr88(p,γ)Y89 and Y88(n,γ)Y89 cross sections with the talys reaction code. Comparison with cross-section data, where available, as well as with values from the BRUSLIB library, shows a satisfying agreement.

Actions (login required)

Edit Item