Charm Spectroscopy at BaBar

TL;DR

This paper reviews charm spectroscopy results from BaBar, including precise measurements of mesons and recent discoveries of charmed baryons, highlighting new states and properties observed since 2003.

Contribution

It provides a comprehensive overview of charm meson and baryon spectroscopy at BaBar, including new state discoveries and precise measurements of known particles.

Findings

Precise measurement of the $D_{s1}(2536)$ meson

Discovery of new charm meson states ($D_{s0}^*(2317)$, $D_{s1}(2460)$, etc.)

Observation of new charmed baryons ($\,Omega_c^0$, $\,Lambda_c(2940)^+$)

Abstract

We present a mini-review on charm spectroscopy at the BaBar experiment. We first report on the $c\bar{s}$ meson spectrum, and present precise measurements of the $D_{s1}(2536)$ meson as well as the properties of the many new states discovered since 2003 ($D_{s0}^*(2317)$, $D_{s1}(2460)$, $D_{sJ}^*(2860)$, and $D_{sJ}(2700)$ mesons). We then discuss about charmed baryons observed recently in the BaBar experiment: $\Omega_c^0$ and $\Omega_c^{*0}$ $css$ baryons, $\Lambda_c(2940)^+$ $udc$ baryon and the $\Xi_c$ $usc/dsc$ baryons.