A new interpretation for the $D_{s2}^{\ast }(2573)$ and the prediction of novel exotic charmed mesons

Abstract

In this manuscript we study the vector - vector interaction within the hidden gauge formalism in a coupled channel unitary approach. In the sector $C=1,S=1,J=2$ we get a pole in the T-matrix around $2572$ MeV that we identify with the $D_{s2}^{\ast }(2573)$, coupling strongly to the $D^{\ast }{K}^{\ast }$($D_s^{\ast }\ddot{I}•$($\ddot{I}‰$)) channels. In addition we obtain resonances in other exotic sectors which have not been studied before such as $C=1,S=-1$, $C=2,S=0$ and $C=2,S=1$. This 'flavor-exotic' states are interpreted as $D^{\ast }\overline{K^{\ast }}$, $D^{\ast }{D}^{\ast }$ and $D_s^{\ast }{D}^{\ast }$ molecular states but have not been observed yet. In total we obtain nine states with different spin, isospin, charm and strangeness of non $C=0,S=0$ and $C=1,S=0$ character, which have been reported before.