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SMEFT analysis of vector boson scattering and diboson data from the LHC Run II

Ethier, Jacob J.; Gomez-Ambrosio, Raquel; Magni, Giacomo; Rojo, Juan

SMEFT analysis of vector boson scattering and diboson data from the LHC Run II Thumbnail


Authors

Jacob J. Ethier

Raquel Gomez-Ambrosio

Giacomo Magni

Juan Rojo



Abstract

We present a systematic interpretation of vector boson scattering (VBS) and diboson measurements from the LHC in the framework of the dimension-six standard model effective field theory (SMEFT). We consider all available measurements of VBS fiducial cross-sections and differential distributions from ATLAS and CMS, in most cases based on the full Run II luminosity, and use them to constrain 16 independent directions in the dimension-six EFT parameter space. Compared to the diboson measurements, we find that VBS provides complementary information on several of the operators relevant for the description of the electroweak sector. We also quantify the ultimate EFT reach of VBS measurements via dedicated projections for the high luminosity LHC. Our results motivate the integration of VBS processes in future global SMEFT interpretations of particle physics data.

Citation

Ethier, J. J., Gomez-Ambrosio, R., Magni, G., & Rojo, J. (2021). SMEFT analysis of vector boson scattering and diboson data from the LHC Run II. The European Physical Journal C, 81(6), https://doi.org/10.1140/epjc/s10052-021-09347-7

Journal Article Type Article
Acceptance Date Jun 17, 2021
Online Publication Date Jun 29, 2021
Publication Date 2021
Deposit Date Dec 7, 2021
Publicly Available Date Dec 7, 2021
Journal The European Physical Journal C
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 81
Issue 6
DOI https://doi.org/10.1140/epjc/s10052-021-09347-7
Public URL https://durham-repository.worktribe.com/output/1222399

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.






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