Flavor-Singlet B-Decay Amplitudes in QCD Factorization
高能物理 - 唯象学
2011-01-27 v1
摘要
Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an eta or eta' meson are of great phenomenological interest. Their theoretical analysis involves decay mechanisms that are unique to flavor-singlet states, such as their coupling to gluons or their ``intrinsic charm'' content. These issues are studied systematically in the context of QCD factorization and the heavy-quark expansion. Theory can account for the experimental data on the B->K^{(*)} eta^{(')} branching fractions, albeit within large uncertainties.
引用
@article{arxiv.hep-ph/0210085,
title = {Flavor-Singlet B-Decay Amplitudes in QCD Factorization},
author = {Martin Beneke and Matthias Neubert},
journal= {arXiv preprint arXiv:hep-ph/0210085},
year = {2011}
}
备注
25 pages, 5 figures