A Mathematica Package for Calculation of One-Loop Penguins in FCNC Processes
High Energy Physics - Phenomenology
2014-09-05 v5
Abstract
In this work, we present a Mathematica package Peng4BSM@LO which calculates the contributions to the Wilson Coefficients of certain effective operators originating from the one-loop penguin Feynman diagrams. Both vector and scalar external legs are considered. The key feature of our package is the ability to find the corresponding expressions in almost any New Physics model which extends the SM and has no flavour changing neutral current (FCNC) transitions at the tree level.
Keywords
Cite
@article{arxiv.1311.5546,
title = {A Mathematica Package for Calculation of One-Loop Penguins in FCNC Processes},
author = {A. V. Bednyakov and S. H. Tanyildizi},
journal= {arXiv preprint arXiv:1311.5546},
year = {2014}
}
Comments
16 pages, 7 figures. The version accepted for publication in IJMPC