Accounting for Slow J/psi from B Decay
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
A slow J/psi excess exists in the inclusive B -> J/psi+X spectrum, and is indicative of some hadronic effect. From color octet nature of c cbar pair in b-> c cbar s decay, one such possibility would be B -> J/psi+ K_g decay, where K_g is a hybrid resonance with sbar g q constituents. We show that a K_g resonance of ~ 2 GeV mass and suitably broad width could be behind the excess.
Keywords
Cite
@article{arxiv.hep-ph/0305180,
title = {Accounting for Slow J/psi from B Decay},
author = {Chun-Khiang Chua and Wei-Shu Hou and Gwo-Guang Wong},
journal= {arXiv preprint arXiv:hep-ph/0305180},
year = {2009}
}
Comments
4 pages, 2 figures. To appear in Phys. Rev. D