Novel technique for constraining r-process (n,γ) reaction rates

2014/08/27 by A. Spyrou, S. N. Liddick, A. C. Larsen +12 · 2 citations
Physics and Astronomy · #nucl-ex

paper · pdf · doi:10.1103/physrevlett.113.232502

published as Phys. Rev. Lett. 113, 232502 (2014) · 5 pages, 3 figures

arxiv created 2014/08/27 · arxiv updated 2014/12/10

Abstract

A novel technique has been developed, which will open exciting new opportunities for studying the very neutron-rich nuclei involved in the r-process. As a proof-of-principle, the γ-spectra from the β-decay of ⁷⁶Ga have been measured with the SuN detector at the National Superconducting Cyclotron Laboratory. The nuclear level density and γ-ray strength function are extracted and used as input to Hauser-Feshbach calculations. The present technique is shown to strongly constrain the ⁷⁵Ge(n,γ)⁷⁶Ge cross section and reaction rate.

Cited by

• Microscopic Statistical Calculation of Nuclear Level Density Based on Relativistic Density Functional Theory
• Correlated and uncorrelated Monte Carlo neutron capture rate variations in weak r-process simulations

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