Non-leptonic B-decays at two loops in QCD Factorization
High Energy Physics - Phenomenology
2019-12-19 v1
Abstract
We report on the calculation of the two-loop penguin amplitudes in non-leptonic B decays in the framework of QCD factorization. We discuss the computation of this genuine two-loop, two-scale problem and provide details on the matching from QCD onto SCET, the evaluation of the master integrals, and the convolution of the hard scattering kernels with the light-cone distribution amplitude of the light meson. Preliminary results on the size of the two-loop correction are given.
Keywords
Cite
@article{arxiv.1912.08429,
title = {Non-leptonic B-decays at two loops in QCD Factorization},
author = {Guido Bell and Martin Beneke and Tobias Huber and Xin-Qiang Li},
journal= {arXiv preprint arXiv:1912.08429},
year = {2019}
}
Comments
11 pages, 5 figures. Contribution to the 14th International Symposium on Radiative Corrections (RADCOR2019), 9-13 September 2019, Palais des Papes, Avignon, France