Spin contribution to the dissociation of bound states in rotating medium in magnetic field

TL;DR

This paper investigates how the spin of particles influences the probability of bound state dissociation in a rotating magnetic medium, revealing that spin significantly enhances the dissociation likelihood, with implications for quark-gluon plasma studies.

Contribution

It introduces a quantum correction to dissociation probability accounting for particle spin using the Bargmann--Michel--Telegdi equation in a rotating frame.

Findings

Spin increases dissociation probability significantly.

Quantum corrections depend on particle spin dynamics.

Implications for quark-gluon plasma dissociation processes.

Abstract

Magneto-rotational dissociation is the decay, by the way of tunneling, of a rotating bound state in the magnetic field. The corresponding probability was recently computed in the quasi-classical approximation using the Imaginary Time Method and was shown to increase with the angular velocity and decrease with the magnetic field strength \cite{Tuchin:2021lxl}. This letter reports the calculation of the quantum correction to the dissociation probability associated with the spin of the tunneling particle. The quasi-classical motion of spin is described by the Bargmann--Michel--Telegdi equation in the rotating frame. It is shown that the spin contribution significantly increases the dissociation probability. Applications to the Quark-Gluon Plasma are touched upon.