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QED at NNLO with McMule


Banerjee, Pulak; Engel, Tim; Signer, Adrian; Ulrich, Yannick (2020). QED at NNLO with McMule. SciPost Physics Proceedings, 9(2):027.

Abstract

McMule is a framework for fully differential higher-order QED calculations of scattering and decay processes involving leptons. It keeps finite lepton masses, which regularises collinear singularities. Soft singularities are treated with dimensional regularisation and using FKSℓ subtraction. We describe the implementation of the framework in Fortran 95, list the processes that are currently implemented, and give instructions on how to run the code. In addition, we present new phenomenological results for muon-electron scattering and lepton-proton scattering, including the dominant NNLO corrections. While the applications presented focus on MUonE, MUSE, and P2, the code can be used for a large number of planned and running experiments.

Abstract

McMule is a framework for fully differential higher-order QED calculations of scattering and decay processes involving leptons. It keeps finite lepton masses, which regularises collinear singularities. Soft singularities are treated with dimensional regularisation and using FKSℓ subtraction. We describe the implementation of the framework in Fortran 95, list the processes that are currently implemented, and give instructions on how to run the code. In addition, we present new phenomenological results for muon-electron scattering and lepton-proton scattering, including the dominant NNLO corrections. While the applications presented focus on MUonE, MUSE, and P2, the code can be used for a large number of planned and running experiments.

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Additional indexing

Item Type:Journal Article, not_refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:31 August 2020
Deposited On:02 Dec 2020 10:09
Last Modified:02 Dec 2020 10:10
Publisher:SciPost
ISSN:2666-4003
OA Status:Gold
Publisher DOI:https://doi.org/10.21468/scipostphys.9.2.027
Project Information:
  • : FunderH2020
  • : Grant ID701647
  • : Project TitlePSI-FELLOW-II-3i - International, Interdisciplinary and Intersectoral Postdocs
  • : FunderSNSF
  • : Grant ID200021_178967
  • : Project TitleNNLO calculations for leptons

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