Computing non-factorizable pQCD corrections to hadronic B^0 - \bar B^0 mixing matrix element within sum rules technique for three point Green functions
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
In this talk I report on the results of a recent calculation of the \alpha_s corrections to a three-point correlation function at the three-loop level in QCD perturbation theory, which allows one to extract the matrix element of B^0 -\bar B^0 mixing with next-to-leading order accuracy. The evaluation of mixing parameter at NLO allows for a consistent analysis of B^0 -\bar B^0 mixing since the coefficient functions of the effective Hamiltonian for this process are known with the necessary accuracy.
Keywords
Cite
@article{arxiv.hep-ph/0409257,
title = {Computing non-factorizable pQCD corrections to hadronic B^0 - \bar B^0 mixing matrix element within sum rules technique for three point Green functions},
author = {A. A. Pivovarov},
journal= {arXiv preprint arXiv:hep-ph/0409257},
year = {2007}
}
Comments
10 pages, Latex, 4 figures, Q-2004 talk