The momentum distribution of J/psi in B decays
High Energy Physics - Phenomenology
2015-03-19 v2
Abstract
The discrepancy between theory and data in the momentum distribution of slow J/psi in B decays has been several times addressed as a puzzle. Using the most recent results on exclusive B decays into J/psi and heavy kaons or exotic mesons and reconsidering the non-relativistic-QCD calculation of the color octet fragmentation component, we show that an improvement in the comparison between data and theory can be obtained. There is still room for a better fit to data and this may imply that new exotic mesons of the XYZ kind have yet to be discovered.
Cite
@article{arxiv.1104.1781,
title = {The momentum distribution of J/psi in B decays},
author = {TJ Burns and F Piccinini and AD Polosa and V Prosperi and C Sabelli},
journal= {arXiv preprint arXiv:1104.1781},
year = {2015}
}
Comments
4 pages, 2 figures, 2 tables. To appear in Physical Review D