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Title

The Mathematica Package for Calculation of One-Loop Penguins in FCNC Processes
Authors

A.V. Bednyakov
S.H. Tanyildizi
Journal / Anthology

arXiv:1311.5546 [hep-ph]
Year: 2013
Volume: November
Description

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.
Subject

*Science > Physics
URL

http://lanl.arxiv.org/abs/1311.5546


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