Validating (d,p γ) as (n, γ) surrogate in normal kinematics
Abstract
Neutron capture through the s and r processes is responsible for almost all of the synthesis of the heavy elements. However, it is very difficult to measure (n, γ) reactions on unstable nuclei especially when t1 / 2 < 100 days. Given the importance of (n, γ) reactions for understanding nucleosynthesis and applications in nuclear energy and national security, it is critical that a valid surrogate for (n, γ) be developed. The 95Mo(d,p γ) reaction was measured in normal kinematics at TAMU with the STARLiTER system of segmented annular silicon strip detectors and clover HPGe detectors. Preliminary calculations of the formation of the compound nucleus and Hauser-Feshbach decay reproduce the measured 95Mo(n, γ) cross sections. By incorporating a calculation of the transferred angular momentum in the (d,p) reaction as a function of excitation energy, preliminary analysis reproduces the observed (d,p) gamma-ray transition probabilities as a function of excitation energy. This preliminary analysis and those from using the observed gamma-ray transition probabilities to predict (n, γ) cross sections will be presented.
This work is supported in part by the U.S. Department of Energy.- Publication:
-
APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- September 2016
- Bibcode:
- 2016APS..DNP.HF003C