Open charm meson spectroscopy: Where to place the latest piece of the puzzle

TL;DR

This paper explores the classification of the recently discovered $D_{sJ}(3040)$ meson, proposing methods to distinguish among four possible theoretical assignments based on experimental signatures.

Contribution

It introduces a framework for classifying the $D_{sJ}(3040)$ meson and suggests experimental signatures to differentiate between potential theoretical models.

Findings

Proposes four possible assignments for $D_{sJ}(3040)$

Identifies signatures to distinguish among these assignments

Provides guidance for future experimental verification

Abstract

We discuss how to classify the $c{\bar s}$ meson $D_{sJ}(3040)$ recently discovered by the BaBar Collaboration. We consider four possible assignments, together with signatures useful to distinguish among them.