Rikkert Frederix
Senior lecturer
Amcfast : Automation of fast NLO computations for PDF fits
Author
Summary, in English
We present the interface between MadGraph5-aMC@NLO, a self-contained program that calculates cross sections up to next-to-leading order accuracy in an automated manner, and APPLgrid, a code that parametrises such cross sections in the form of look-up tables which can be used for the fast computations needed in the context of PDF fits. The main characteristic of this interface, which we dub aMCfast, is its being fully automated as well, which removes the need to extract manually the process-specific information for additional physics processes, as is the case with other matrix-element calculators, and renders it straightforward to include any new process in the PDF fits. We demonstrate this by studying several cases which are easily measured at the LHC, have a good constraining power on PDFs, and some of which were previously unavailable in the form of a fast interface.
Publishing year
2014-08
Language
English
Publication/Series
Journal of High Energy Physics
Volume
2014
Issue
8
Document type
Journal article
Publisher
Springer
Topic
- Other Physics Topics
Keywords
- NLO Computations
- QCD Phenomenology
Status
Published
ISBN/ISSN/Other
- ISSN: 1029-8479