Alpha Decay Processes under a Diproton, Dineutron and Deuteron Pairing Scheme

TL;DR

This paper models alpha decay processes considering diproton, dineutron, and deuteron pairing schemes, using superconductivity theories to estimate half-lives and explore photon emission roles, achieving good agreement with experimental data.

Contribution

It introduces a novel model combining pairing schemes and superconductivity theories to predict alpha decay half-lives and photon emission roles.

Findings

Half-life times estimated with good experimental agreement.

Photon emission plays a significant role in alpha decay.

Two distinct pairing channels for alpha formation are proposed.

Abstract

In this paper we are able to justify the existence or no of photons emitted during $\alpha$ decay, based on the average half life times using the BCS superconductivity and superfluidity theories. The proposed model suggests two possible channels. A first channel where the protons and neutrons interact separately through a spin coupling, giving rise to diprotons and dineutrons which in turn interact through an isospin coupling to form an $\alpha$ particle, and a second channel where the protons and neutrons are treated as nucleons that interact through an isospin coupling, giving rise to deuterons, which in turn interact through a spin coupling to form an $\alpha$ particle. Due to the nature of the involved particles, the systems considered are homogeneous. For the second channel, the photon play a very important role for the possible escape of the $\alpha$ particle. Within these premises the half life times of a considerable number of heavy nuclei with spherical symmetry can be estimated with good experimental agreement.