Probing the mass degeneracy of particles with different spins

TL;DR

This paper introduces a method to investigate potential mass degeneracy between particles of different spins using cascade decay processes, which could reveal interesting behaviors if such degeneracy exists.

Contribution

The paper proposes a novel approach to probe mass degeneracy across particles with different spins through cascade decay analysis.

Findings

Potential mass degeneracy of X(3872) can cause distinctive decay behaviors

Method provides a new way to test spin-related mass similarities

Applicable to other particle decay channels

Abstract

The spin is an important property of a particle. Although it is unlikely to happen, there is still a possibility that two particle with different spins share similar masses. In this paper, we propose a method to probe this kind of mass degeneracy of particles with different spins. We will use the cascade decay $B^+\to X(3872)K^+$, $X(3872)\to D^+D^-$ to explain our method. It can be seen that the possible mass degeneracy of $X(3872)$ can lead interesting behavior in the corresponding cascade decay.