Hybrid model for two-proton radioactivity

B. A. Brown, B. Blank, and J. Giovinazzo

Phys. Rev. C 100, 054332 – Published 26 November 2019

Abstract

A hybrid model is proposed which combines the nuclear structure part from configuration-interaction (CI) calculations and the emission dynamics from a three-body approach. By normalizing the partial half-lives from the three-body model with CI amplitudes, we can reasonably well reproduce all known experimental two-proton ( $2 p$ ) emission half-lives, except for ${}^{67}{Kr}$ . For the purpose of the present paper, the full body of experimental $2 p$ radioactivity data for nuclei for which the half-life and the $2 p$ emission branching ratio are experimentally known has been analyzed in our hybrid model.

Received 6 March 2019
Revised 15 October 2019

DOI:https://doi.org/10.1103/PhysRevC.100.054332

Physics Subject Headings (PhySH)

Lifetimes & widths Nuclear structure & decays Proton emission

39 ≤ A ≤ 58

Nuclear Physics

Authors & Affiliations

B. A. Brown

Department of Physics and Astronomy, and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA

B. Blank and J. Giovinazzo