Revealing the inner structure of the newly observed $D_2^*(3000)$

TL;DR

This paper analyzes the decay properties of potential charmed mesons to identify the nature of the recently observed $D_2^*(3000)$, suggesting it is most likely a $3^3P_2$ state, with implications for future experimental searches.

Contribution

The study provides a detailed comparison of decay behaviors of $3P$ and $2F$ charmed mesons, proposing the $3^3P_2$ assignment for $D_2^*(3000)$ and guiding future experimental searches.

Findings

$D_2^*(3000)$ likely a $3^3P_2$ charmed meson

Decay properties support the $3^3P_2$ assignment

Results aid future searches at LHCb and Belle II

Abstract

Stimulated by the recent observation of the $D_2^\ast(3000)$, we study the decay behaviors of the $3P$ and $2F$ charmed mesons in the present work. By comparing the masses and decay properties of the $3^3P_2$ and $2^3F_2$ charmed mesons with the observation of the $D_2^\ast(3000)$, we conclude that the most possible assignment of the $D_2^\ast(3000)$ is the $3^3P_2$ charmed meson, while the assignment of the $2^3F_2$ charmed meson could not be fully exclude. The results of the unobserved $3P$ and $2F$ charmed mesons in this work could provide some fundamental information of searching for these charmed mesons in the further experiments by LHCb and forthcoming Belle II.