Proposal for the validation of Monte Carlo implementations of the standard model effective field theory

Gauthier Durieux (ed.) , Ilaria Brivio (ed.) , Fabio Maltoni (ed. ex officio) , Michael Trott (ed. ex officio) , Simone Alioli , Andy Buckley , Mauro Chiesa , Jorge de Blas

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Athanasios Dedes C\'eline Degrande Ansgar Denner Christoph Englert James Ferrando Benjamin Fuks Peter Galler Admir Greljo Valentin Hirschi Gino Isidori Wolfgang Kilian Frank Krauss Jean-Nicolas Lang Jonas Lindert Michelangelo Mangano David Marzocca Olivier Mattelaer Kentarou Mawatari Emanuele Mereghetti David J. Miller Ken Mimasu Michael Paraskevas Tilman Plehn Laura Reina Janusz Rosiek J\"urgen Reuter Jos\'e Santiago Kristaq Suxho Lampros Trifyllis Eleni Vryonidou Christopher White Cen Zhang Hantian Zhang

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classification ✦ hep-ph hep-ex

keywords effectivefieldtheoryimplementationsmodelstandardamplitudescarlo

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We propose a procedure to cross-validate Monte Carlo implementations of the standard model effective field theory. It is based on the numerical comparison of squared amplitudes computed at specific phase-space and parameter points in pairs of implementations. Interactions are fully linearised in the effective field theory expansion. The squares of linear effective field theory amplitudes and their interference with standard-model contributions are compared separately. Such pairwise comparisons are primarily performed at tree level and a possible extension to the one-loop level is also briefly considered. We list the current standard model effective field theory implementations and the comparisons performed to date.

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Proposal for the validation of Monte Carlo implementations of the standard model effective field theory

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