Neutron capture cross sections of radioactive nuclei

TL;DR

This paper introduces new theoretical methods based on INEB and coupled-channels theory to indirectly calculate neutron capture cross sections of radioactive nuclei, expanding the tools available for nuclear physics research.

Contribution

It extends existing theories to include complex cluster reactions and applies them to radioactive nuclei, offering novel indirect calculation approaches.

Findings

Developed an extended INEB-based method for radioactive nuclei

Analyzed reactions involving two- and three-cluster systems

Proposed new theoretical frameworks for indirect cross section estimation

Abstract

Alternative methods to calculate neutron capture cross sections on radioactive nuclei are reported using the theory of Inclusive Non-Elastic Breakup (INEB) developed by Hussein and McVoy [1]. The statistical coupled-channels theory proposed in Ref. [2] is further extended in the realm of random matrices. The case of reactions with the projectile and the target being two-cluster nuclei is also analyzed and applications are made for scattering from a deuteron target [3]. An extension of the theory to a three-cluster projectile incident on a two-cluster target is also discussed. The theoretical developments described here should open new possibilities to obtain information on the neutron capture cross sections of radioactive nuclei using indirect methods.