Identifying $D_{sJ}(2700)$ through its decay modes

TL;DR

This paper analyzes the decay modes of the $D_{sJ}(2700)$ meson to determine its placement in the charm-strange meson spectrum, using an effective Lagrangian approach with symmetries.

Contribution

It introduces a method to assign the $D_{sJ}(2700)$ meson to a specific level in the spectrum based on decay mode analysis and effective Lagrangian techniques.

Findings

Measurement of the $D^* K$ decay width can distinguish between possible assignments.

Effective Lagrangian approach with heavy quark and chiral symmetries is effective for decay analysis.

Provides a framework for identifying meson states through decay mode measurements.

Abstract

We study how to assign the recently observed $D_{sJ}(2700)$ meson to an appropriate level of the $c \bar s$ 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.