Pionic transitions from X(3872) to chi_{cJ}

TL;DR

This paper investigates the decay transitions from the X(3872) resonance to chi_{cJ} states via pion emission, aiming to understand its internal structure by analyzing how transition rates vary with different J states.

Contribution

It introduces a method to distinguish the nature of X(3872) by comparing transition rates to various chi_{cJ} states based on their internal configurations.

Findings

Transition rates vary significantly depending on whether X(3872) is a charmonium or a molecular state.

The study provides a way to identify the structure of X(3872) through experimental measurement of decay ratios.

Theoretical predictions suggest measurable differences in decay patterns for different internal models.

Abstract

We consider transitions from the resonance X(3872) to the chi_{cJ} states of charmonium with emission of one or two pions as a means of studying the structure of the X resonance. We find that the relative rates for these transitions to the final states with different J significantly depend on whether the initial state is a pure charmonium state or a four-quark/molecular state.