Towards NNLO corrections in B --> D pi
High Energy Physics - Phenomenology
2014-05-26 v1
Abstract
We describe the status of the calculation of the branching ratio for the decay \bar B^0 --> D^+ pi^- to NNLO in QCD factorization. Here, we present the result for the colour-singlet hard-scattering kernel. The calculation has been performed using multi-loop techniques like Laporta's reduction to master integrals, and Mellin-Barnes representations and differential equations for evaluating the latter.
Cite
@article{arxiv.1405.5911,
title = {Towards NNLO corrections in B --> D pi},
author = {T. Huber and S. Krankl},
journal= {arXiv preprint arXiv:1405.5911},
year = {2014}
}
Comments
6 pages, 1 figure. Talk given at the 42nd ITEP winter school, February 2014, Moscow, Russia