Double and Triple Higgs Production to probe the Electroweak Phase Transition

The production of three Higgs bosons could be a stretch goal for the LHC and a strategic case for future colliders. In this work, we analyse the phenomenological prospects of (neutral) triple Higgs compared to di-Higgs boson production, for a range of Higgs-sector extensions from a strong first-orde...

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Published inarXiv.org
Main Authors Biermann, Lisa, Borschensky, Christoph, Englert, Christoph, Mühlleitner, Margarete, Naskar, Wrishik
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.08.2024
Subjects
Astronomical models
Bosons
Higgs bosons
Large Hadron Collider
Parameter modification
Phase transitions
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Summary:The production of three Higgs bosons could be a stretch goal for the LHC and a strategic case for future colliders. In this work, we analyse the phenomenological prospects of (neutral) triple Higgs compared to di-Higgs boson production, for a range of Higgs-sector extensions from a strong first-order electroweak phase transition perspective. In parallel, we include constraints from existing exotics and Higgs boson measurements that further limit the parameter space of such models. Resonance contributions offer large modifications in particular for triple Higgs production, albeit starting from a small SM expectation. With enhancements of order 40 over the SM, however, experimental efforts to obtain limits at the HL-LHC are well-motivated and well-placed. This is further highlighted by the potential of these processes to inform the investigation of the thermal history of our universe.
ISSN:2331-8422