Masses and radiative decay widths of the $D_{s0}^*(2317)$ and $D_{s1}^{\prime}(2460)$ and their bottom analogs

TL;DR

This paper investigates the mass spectra and radiative decay widths of the $D_{s0}^*(2317)$, $D_{s1}^{oldsymbol{ extprime}}(2460)$, and their bottom analogs, emphasizing unquenched effects and coupled channel interactions.

Contribution

It introduces a comprehensive unquenched framework including coupled channel effects and self interactions to accurately reproduce the spectra and decay properties of these mesons.

Findings

Successfully reproduces the mass spectra of $D_{s0}^*(2317)$ and $D_{s1}^{oldsymbol{ extprime}}(2460)$

Provides detailed calculations of their radiative decay widths

Extends analysis to bottom analogs using heavy quark symmetry

Abstract

We study the mass spectra and radiative decays of $D_{s0}^*(2317)$ and $D_{s1}^{\prime}(2460)$ in an unquenched framework. In addition to coupled channel effects between the $c\bar{s}$ cores and $D^{(*)}K$ channels, $D^{(*)}K$-$D^{(*)}K$ self interactions are also considered in this work and we succeed to reproduce their mass spectra. Furthermore, we study the radiative decays of the $D_{s0}^*(2317)$ and $D_{s1}^{\prime}(2460)$ by simultaneously including the compound structures of conventional $c\bar{s}$ cores and $D^{(*)}K$ components. We also calculate their bottom analogs with heavy quark symmetry. Our study offers useful insights into the important unquenched effects in the formation of $D_{s0}^*(2317)$, $D_{s1}^{\prime}(2460)$ and the bottom counterparts.