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aMCfast: automation of fast NLO computations for PDF fits

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posted on 2023-06-21, 06:01 authored by Valerio Bertone, Rikkert Frederix, Stefano Frixione, Juan Rojo, Mark SuttonMark Sutton
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.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of High Energy Physics

ISSN

1029-8479

Publisher

Springer Verlag

Volume

1408

Page range

166

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-10-04

First Open Access (FOA) Date

2016-10-04

First Compliant Deposit (FCD) Date

2016-10-04

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