Calculating multileg one-loop processes. The case of gg -> t bar_t+gg

This study is targeted to the NLO corrections of multileg processes, very important for the LHC. Starting from the construction of Feynman diagrams, the analytical reduction of general one-loop integrals to scalar master ones, the calculation of color structures, manipulation of spinor lines and oth...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2010-06
Main Authors: Diakonidis, Theodoros, Tausk, Bas
Format: Article
Language:English
Subjects:
Feynman diagrams
FORTRAN
Mathematical analysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study is targeted to the NLO corrections of multileg processes, very important for the LHC. Starting from the construction of Feynman diagrams, the analytical reduction of general one-loop integrals to scalar master ones, the calculation of color structures, manipulation of spinor lines and other amplitude constituents and finally phase space point selection are obtained by use of a program producing Fortran code for numerical calculation of one-loop corrections for processes like gg -> t bar_t+gg.
ISSN:2331-8422
DOI:10.48550/arxiv.1005.5256