Theoretical Analysis of Cross Sections for n+^{46,47,49,50,nat.}Ti Reactions

Abstract

All of the reaction cross sections, angular distributions, energy spectra, and double-differential cross sections are consistently calculated and analyzed for the neutron-induced ^{46,47,49,50,nat.}Ti reactions below 20 MeV. Concurrently, the present work uses the optical model; the unified Hauser-Feshbach theory; the exciton model, which includes the improved Iwamoto-Harada model; and the distorted wave Born approximation theory. Especially, the recoil effect is taken into account in the calculation to keep the energy balance of whole reaction processes. Theoretical calculations are compared with existing experimental data and other evaluated data in ENDF/B-VIII, JENDL-4, and JEFF-3 below 20 MeV. Our theoretical calculated results agree with the experimental data and give a better description than the other evaluations for all reactions.

Keywords:

• Reaction cross sections
• energy spectra
• angular distributions
• nuclear theoretical models

Acknowledgments

This work is supported by China National Natural Science Foundation-NSAF (grant number U1630122), by the Open Project of Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology (grant number NLK2020-04). This work is also supported by Science Foundation for General in Shanxi of China (grant number 201901D111317) and by the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi of China (grant number 2019L0743).

Disclosure Statement

No potential conflict of interest was reported by the author(s).