PoS - Proceedings of Science
Volume 375 - 14th International Symposium on Radiative Corrections (RADCOR2019) - B Decay
Non-leptonic B-decays at two loops in QCD Factorization
G. Bell, M. Beneke, T. Huber,* X.Q. Li
*corresponding author
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Pre-published on: December 20, 2019
Published on: February 18, 2020
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.
DOI: https://doi.org/10.22323/1.375.0032
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