Charmonium transition in electromagnetic and rotational fields

TL;DR

This paper investigates how electromagnetic and rotational fields influence charmonium states, revealing a transition from isotropic to anisotropic bound states due to competing interactions, with potential implications for high energy nuclear collisions.

Contribution

It introduces a potential model analysis of charmonium transitions under electromagnetic and rotational fields, highlighting anisotropic effects and state transitions.

Findings

Charmonium states become anisotropic under electromagnetic and rotational fields.

A transition from positive to negative binding energy states is observed.

Potential relevance for high energy nuclear collision experiments.

Abstract

We study charmonia in electromagnetic and rotational fields in the frame of a potential model. Different from the temperature field which is isotropic and leads to the well-known charmonium dissociation, the electromagnetic and rotational fields break down the radial symmetry, and the competition between strong interaction and electromagnetic and rotational interaction in the direction of Lorentz force makes the charmonia transit from an isotropic bound state of strong interaction with positive binding energy to an anisotropic bound state of electromagnetic and rotational interaction with negative binding energy. The transition seems possible to be realized in high energy nuclear collisions.