A Study of the DsJ(2317) and DsJ(2460) Mesons in Inclusive ccbar Production Near sqrt(s) = 10.6 GeV

TL;DR

This paper investigates the properties of specific charm-strange mesons, including mass and width measurements, using a large dataset from the BaBar experiment, and searches for related partner states.

Contribution

It provides new measurements of the masses and limits on the widths of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons, and searches for their neutral and doubly-charged partners.

Findings

Mass estimates and width limits for $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$

No evidence found for neutral or doubly-charged partners

Enhanced understanding of charm-strange meson spectroscopy

Abstract

A study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons in inclusive $c\bar{c}$ production is presented using 232 ${\rm fb}^{-1}$ of data collected by the BaBar experiment near $\sqrt{s} = 10.6$ \gev. Final states consisting of a $D_s^+$ meson along with one or more $\pi^0$, $\pi^\pm$, or $\gamma$ particles are considered. Estimates of the mass and limits on the width are provided for both mesons and for the $D_{s1}(2536)^+$ meson. A search is also performed for neutral and doubly-charged partners of the $D_{sJ}^*(2317)^+$ meson.