Why is the B -> eta' X decay width so large ?
High Energy Physics - Phenomenology
2009-10-30 v2 High Energy Physics - Experiment
Abstract
New mechanism for the observed inclusive B -> \eta'X decay is suggested. We argue that the dominant contribution to this amplitude is due to the Cabbibo favored b -> \bar{c}cs process followed by the transition \bar{c}c -> \eta'. A large magnitude of the "intrinsic charm" component of \eta' is of critical importance in our approach. Our results are consistent with an unexpectedly large Br(B -> \eta'+X) \sim 10^{-3} recently announced by CLEO. We stress the uniqueness of this channel for 0^{-+} gluonia search.
Cite
@article{arxiv.hep-ph/9705251,
title = {Why is the B -> eta' X decay width so large ?},
author = {Igor Halperin and Ariel Zhitnitsky},
journal= {arXiv preprint arXiv:hep-ph/9705251},
year = {2009}
}
Comments
Comments on a mixing model for intrinsic charm and pre-asymptotic effects and some references are added. Latex, 9 pages