Sensitivity to new physics in final states with multiple gauge and Higgs bosons

A bstract We analyse the sensitivity to beyond-the-Standard-Model effects of hadron-collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson. We examine current experimental results by the CMS collaboration in the context of a d...

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Bibliographic Details
Published in:	The journal of high energy physics 2022-09, Vol.2022 (9), p.38-25, Article 38
Main Authors:	Cappati, A., Covarelli, R., Torrielli, P., Zaro, M.
Format:	Article
Language:	eng
Subjects:	Bosons Classical and Quantum Gravitation Collaboration Electroweak model Elementary Particles Field theory Higgs bosons Higgs Production High energy physics High Energy Physics - Experiment High Energy Physics - Phenomenology Large Hadron Collider Luminosity Pair production Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory Sensitivity analysis SMEFT String Theory Symmetry
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Summary:	A bstract We analyse the sensitivity to beyond-the-Standard-Model effects of hadron-collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson. We examine current experimental results by the CMS collaboration in the context of a dimension-8 extension of the Standard Model in an effective-field-theory formalism. We show that constraints from vector-boson-fusion Higgs-pair production on operators that modify the Standard Model VVHH interactions are already comparable with or more stringent than those quoted in the analysis of vector-boson-scattering final states. We study the modifications of such constraints when introducing unitarity bounds, and investigate the potential of new experimental final states, such as ZHH associated production. Finally, we show perspectives for the high-luminosity phase of the LHC.
ISSN:	1029-8479 1126-6708 1029-8479