Studies of radiative X(3872) decays at Belle

TL;DR

This paper reports on the study of radiative decays of X(3872) at Belle, revealing the first evidence of a new particle at 3823 MeV/c^2 in the _{1}\u03b3 final state.

Contribution

First evidence of a new particle at 3823 MeV/c^2 observed in radiative decays of X(3872) at Belle.

Findings

Evidence of a new particle at 3823 MeV/c^2

Observation of radiative decay channels of X(3872)

First detection of this new state in _{1} final state

Abstract

We present a study of the radiative decays of X(3872) at Belle. In the \chi_{c1}\gamma final state, we got the first evidence of a new particle at 3823 MeV$/c^2$.