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

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

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

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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.

Original languageEnglish
Article number560
Pages (from-to)1-36
Number of pages36
JournalEuropean Physical Journal C. Particles and Fields
Volume81
Issue number6
DOIs
Publication statusPublished - 29 Jun 2021

Bibliographical note

Funding Information:
We are grateful to Simone Alioli, Fabio Maltoni, Giampiero Passarino, Eleni Vryonidou, and Cen Zhang for discussions about the topics covered in this paper and for feedback on this manuscript. We thank our colleagues of the VBScan COST action for many useful discussions about VBS over the past years. Special thanks go to the HEPData team, in particular Graeme Watt, and to the ATLAS and CMS analyzers that have provided assistance with the implementation of the VBS measurements: Claude Charlot, Roberto Covarelli, Guillelmo G?mez-Ceballos, and Kristin Lohwasser. The work of J.?E., G.?M., and J.?R. is partially supported by the Netherlands Organization for Scientific Research (NWO). R.?G. acknowledges funding from the ERC Starting Grant REINVENT-714788 and from the Fondazione Cariplo and Regione Lombardia, Grant 2017?2070, as well as the UK Science and Technology Facilities Council (STFC) Grant ST/P001246/1.

Funding Information:
We are grateful to Simone Alioli, Fabio Maltoni, Giampiero Passarino, Eleni Vryonidou, and Cen Zhang for discussions about the topics covered in this paper and for feedback on this manuscript. We thank our colleagues of the VBScan COST action for many useful discussions about VBS over the past years. Special thanks go to the HEPData team, in particular Graeme Watt, and to the ATLAS and CMS analyzers that have provided assistance with the implementation of the VBS measurements: Claude Charlot, Roberto Covarelli, Guillelmo Gómez-Ceballos, and Kristin Lohwasser. The work of J. E., G. M., and J. R. is partially supported by the Netherlands Organization for Scientific Research (NWO). R. G. acknowledges funding from the ERC Starting Grant REINVENT-714788 and from the Fondazione Cariplo and Regione Lombardia, Grant 2017–2070, as well as the UK Science and Technology Facilities Council (STFC) Grant ST/P001246/1.

Publisher Copyright:
© 2021, The Author(s).

Funding

We are grateful to Simone Alioli, Fabio Maltoni, Giampiero Passarino, Eleni Vryonidou, and Cen Zhang for discussions about the topics covered in this paper and for feedback on this manuscript. We thank our colleagues of the VBScan COST action for many useful discussions about VBS over the past years. Special thanks go to the HEPData team, in particular Graeme Watt, and to the ATLAS and CMS analyzers that have provided assistance with the implementation of the VBS measurements: Claude Charlot, Roberto Covarelli, Guillelmo G?mez-Ceballos, and Kristin Lohwasser. The work of J.?E., G.?M., and J.?R. is partially supported by the Netherlands Organization for Scientific Research (NWO). R.?G. acknowledges funding from the ERC Starting Grant REINVENT-714788 and from the Fondazione Cariplo and Regione Lombardia, Grant 2017?2070, as well as the UK Science and Technology Facilities Council (STFC) Grant ST/P001246/1. We are grateful to Simone Alioli, Fabio Maltoni, Giampiero Passarino, Eleni Vryonidou, and Cen Zhang for discussions about the topics covered in this paper and for feedback on this manuscript. We thank our colleagues of the VBScan COST action for many useful discussions about VBS over the past years. Special thanks go to the HEPData team, in particular Graeme Watt, and to the ATLAS and CMS analyzers that have provided assistance with the implementation of the VBS measurements: Claude Charlot, Roberto Covarelli, Guillelmo Gómez-Ceballos, and Kristin Lohwasser. The work of J. E., G. M., and J. R. is partially supported by the Netherlands Organization for Scientific Research (NWO). R. G. acknowledges funding from the ERC Starting Grant REINVENT-714788 and from the Fondazione Cariplo and Regione Lombardia, Grant 2017–2070, as well as the UK Science and Technology Facilities Council (STFC) Grant ST/P001246/1.

FundersFunder number
Fondazione Cariplo and Regione Lombardia2017–2070
Horizon 2020 Framework Programme714788
Science and Technology Facilities CouncilST/P001246/1
European Research Council
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
ARC Training Centre in Lightweight Automotive Structures

    Keywords

    • hep-ph
    • hep-ex

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