Higher-twist B-meson Distribution Amplitudes in HQET
High Energy Physics - Phenomenology
2017-05-24 v1
Abstract
We present a systematic study of higher-twist distribution amplitudes (DAs) of the B-meson which give rise to power-suppressed contributions to B-decays in final states with energetic light particles in the framework of QCD factorization. As the main result, we find that the renormalization group equations for the three-particle distributions are completely integrable in the large limit and can be solved exactly. General properties of the solutions are studied. We propose simple models for higher-twist DAs which satify all existing constraints and can be used in phenomenological studies.
Cite
@article{arxiv.1703.02446,
title = {Higher-twist B-meson Distribution Amplitudes in HQET},
author = {V. M. Braun and Yao Ji and A. N. Manashov},
journal= {arXiv preprint arXiv:1703.02446},
year = {2017}
}
Comments
42 pages, 4 figures