Search for the D_(sJ)(2632)^+ at BaBar

TL;DR

This study searches for the $D_{sJ}(2632)^+$ particle reported by SELEX using BaBar data but finds no evidence of its existence in multiple decay channels, challenging previous claims.

Contribution

The paper provides a comprehensive search for the $D_{sJ}(2632)^+$ state using a large BaBar dataset, offering the first independent verification with null results.

Findings

No evidence for $D_{sJ}(2632)^+$ in $D_s o ext{eta}$ and $D^0 K^+$ spectra.

No signal observed in $D^{*+} K_S$ spectrum.

Results challenge previous observations by SELEX.

Abstract

We have performed a search for the $D^*_{sJ}(2632)^+$ state recently reported by the SELEX Collaboration at FNAL. This preliminary analysis makes use of an integrated luminosity of 125 ${\rm fb}^{-1}$ collected by the BaBar detector at the PEP-II asymmetric-energy $e^+e^-$ collider. The resulting $D_s \eta$ and $D^0 K^+$ mass spectra show no evidence for the $D^*_{sJ}(2632)^+$ state. In addition, no signal is observed in the $D^{*+} K_S$ mass spectrum.