Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays

Preprint

23 December 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0408126

Abstract

We report the observation of a near-threshold enhancement in the omega-J/psi invariant mass distribution for exclusive B-->K omega J/psi decays. The results are obtained from a 253 fb-1 data sample that contains 275 million BB-bar meson pairs that were collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The statistical significance of the omega-J/psi mass enhancement is estimated to be greater than 8 sigma.

Keywords

J/PSI MASS ENHANCEMENT
OMEGA J/PSI MASS
THRESHOLD OMEGA
J/PSI DECAYS
DATA SAMPLE
K OMEGA

All Related Versions

Version 1, 2004-08-25, ArXiv
Version 2, 2004-12-23, ArXiv
Published version: Physical Review Letters, 94 (18), 182002.

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