We study how to assign the recently observed DsJ(2700) meson to an appropriate level of the csˉ spectrum by the analysis of its decay modes in final states comprising a light pseudoscalar meson. We use an effective lagrangian approach with heavy quark and chiral symmetries, obtaining that the measurement of the D∗K decay width would allow to distinguish between two possible assignments.
@article{arxiv.0710.3068,
title = {Identifying $D_{sJ}(2700)$ through its decay modes},
author = {P. Colangelo and F. De Fazio and S. Nicotri and M. Rizzi},
journal= {arXiv preprint arXiv:0710.3068},
year = {2008}
}