Precise predictions for B -> Xc tau nu decay distributions
High Energy Physics - Phenomenology
2014-09-05 v2
Abstract
We derive precise standard model predictions for the dilepton invariant mass and the tau energy distributions in inclusive B -> Xc tau nu decay. We include Lambda_QCD^2/m_b^2 and alpha_s corrections using the 1S short-distance mass scheme, and estimate shape function effects near maximal tau energy. These results can improve the sensitivity of b -> c tau nu related observables to beyond standard model physics.
Cite
@article{arxiv.1406.7013,
title = {Precise predictions for B -> Xc tau nu decay distributions},
author = {Zoltan Ligeti and Frank J. Tackmann},
journal= {arXiv preprint arXiv:1406.7013},
year = {2014}
}
Comments
7 pages, 4 figures; v2: journal version