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ATLAS searches for additional scalars and exotic Higgs boson decays with the LHC Run 2 dataset

This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb−1 of 13 TeV proton-proton collision data collected during Run 2 of the Large Hadron Collider. Key results are ex...

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Main Authors: Aad, Georges (Author) , Ackermann, Anke (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Sanfilippo, Lorenzo (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 22 April 2025
In: Physics reports
Year: 2025, Volume: 1116, Pages: 184-260
ISSN:0370-1573
DOI:10.1016/j.physrep.2024.09.002
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physrep.2024.09.002
Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S037015732400303X
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Author Notes:The ATLAS Collaboration*
Description
Summary:This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb−1 of 13 TeV proton-proton collision data collected during Run 2 of the Large Hadron Collider. Key results are examined, and observed excesses, while never statistically compelling, are noted. Constraints are placed on parameters of several models which extend the Standard Model, for example by adding one or more singlet or doublet fields, or offering exotic Higgs boson decay channels. Summaries of new searches as well as extensions of previous searches are discussed. These new results have a wider reach or attain stronger exclusion limits. New experimental techniques that were developed for these searches are highlighted. Search channels which have not yet been examined are also listed, as these provide insight into possible future areas of exploration.
Item Description:Gesehen am 22.04.2026
Online veröffentlicht: 9. Oktober 2024
*The ATLAS Collaboration: A. Ackermann, L. M. Baltes, F. Bartels, F. Del Rio, S. J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P. S. Ott, D. F. Rassloff, L. Sanfilippo, C. Sauer, A. Schöning, H-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, S. M. Weber, M. Wessels, L. Vigani, J. Zinßer
Physical Description:Online Resource
ISSN:0370-1573
DOI:10.1016/j.physrep.2024.09.002

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