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Testing exotic scalars with HiggsBounds

Henning Bahl, Víctor Martín Lozano, Tim Stefaniak, Jonas Wittbrodt

2022The European Physical Journal C24 citationsDOIOpen Access PDF

Abstract

Abstract The program is a well-established tool for testing Beyond-the-Standard Model (BSM) theories with an extended Higgs sector against experimental limits from collider searches at LEP, Tevatron and LHC. Thus far, it could be applied to any neutral or charged Higgs bosons originating from the modified Higgs sector. Implicitly, these particles were assumed to exhibit a somewhat hierarchical Yukawa structure as present in the Standard Model, where in particular the couplings to first generation fermions could be neglected. In this work, we extend the functionalities to go beyond these restrictions, thus making the code applicable to any neutral or charged BSM scalars. Moreover, we develop a new approach to implement experimental searches whose kinematic acceptance depends significantly on the values of the involved couplings. We achieve this by recasting the searches to general scalar models. Using this approach we incorporate relevant current experimental limits from LHC searches for exotic scalars, and present the implications of these limits for a dark matter scalar mediator model, a flipped Two-Higgs-Doublet Model and a supersymmetric model with R -parity violation.

Topics & Concepts

PhysicsParticle physicsHiggs bosonLarge Hadron ColliderYukawa potentialTevatronStandard Model (mathematical formulation)Scalar (mathematics)Physics beyond the Standard ModelHiggs sectorBosonFermionMinimal Supersymmetric Standard ModelLittle HiggsDark matterHiggs fieldGeometryArchaeologyGauge (firearms)MathematicsHistoryParticle physics theoretical and experimental studiesDark Matter and Cosmic PhenomenaCosmology and Gravitation Theories
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