A quark model study of strong decays of $X\left( 3915\right) $

TL;DR

This paper investigates the strong decay mechanisms of the particle X(3915) using two quark models, aiming to explain experimental decay patterns and assess the particle's nature.

Contribution

It compares conventional and unconventional quark model descriptions of X(3915) to interpret its decay behaviors and experimental observations.

Findings

Suppression of X(3915) → D D̄ decay can be explained by momentum-dependent decay amplitudes.

The decay X(3915) → ω J/ψ may favor an unconventional quark model description.

Both models can account for the suppression of certain decay channels.

Abstract

Strong decays of $X\left( 3915\right) $ are analyzed from two quark model descriptions of $X\left( 3915\right) $, a conventional one in terms of the Cornell potential and an unconventional one from a Generalized Screened potential. We conclude that the experimental suppression of the OZI allowed decay $X\left( 3915\right) \rightarrow D\overline{D}$ might be explained in both cases as due to the momentum dependence of the decay amplitude. However, the experimental significance of the OZI forbidden decay $X\left( 3915\right) \rightarrow\omega J/\psi$ could favor an unconventional description.