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

Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed, Kira Abeling, Nils Julius Abicht, Haider Abidi, Mohammed Aboelela, Asmaa Aboulhorma, Halina Abramowicz, …
Deutsches Elektronen-Synchrotron, DESY, Hamburg
2024

摘要

CERN LHC Coll channel cross section: upper limit data analysis method decay: exotic experimental results GeV-cms Higgs particle: doublet Higgs particle: heavy Higgs particle: rare decay new particle new physics: search for p p: colliding beams p p: scattering scalar particle singlet
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.

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