The molecular systems composed of the charmed mesons in the $H\bar{S}+h.c.$ doublet

TL;DR

This paper explores the theoretical possibility of heavy molecular states formed by charm mesons in specific doublets, highlighting potential experimental signatures and the importance of certain quantum numbers for detection.

Contribution

It proposes the existence of heavy molecular states composed of charm mesons in the H and S doublets, emphasizing their potential observability in future experiments.

Findings

Possible heavy molecular states involving charm mesons are theoretically feasible.

Certain states with $J^{PC}=1^{--}$ could be detected via initial state radiation.

The narrowness of specific charm-strange mesons makes experimental observation promising.

Abstract

We study the possible heavy molecular states composed of a pair of charm mesons in the H and S doublets. Since the P-wave charm-strange mesons $D_{s0}(2317)$ and $D_{s1}(2460)$ are extremely narrow, the future experimental observation of the possible heavy molecular states composed of $D_s/D_s^\ast$ and $D_{s0}(2317)/D_{s1}(2460)$ may be feasible if they really exist. Especially the possible $J^{PC}=1^{--}$ states may be searched for via the initial state radiation technique.