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Symmetry and decoupling in multi-Higgs boson models [PDF]
Physical Review D, 2021 12 ...
Sergio Carrolo +3 more
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Family Symmetries and Multi Higgs Doublet Models [PDF]
Symmetry, 2020 Imposing a family symmetry on the Standard Model in order to reduce the number of its free parameters, due to the Schur’s Lemma, requires an explicit breaking of this symmetry. To avoid the need for this symmetry to break, additional Higgs doublets can be introduced.
Bartosz Dziewit +3 more
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Softly broken symmetries in the 2HDM — an invariant formulation
Journal of High Energy Physics, 2023 Soft breaking of a symmetry requires an invariance of the dimension-4 part of the Lagrangian and non-trivial variation of the lower-dimensional part. However, in general, separation between the dim-4 and lower-dimensional Lagrangian is not invariant with
P. M. Ferreira +3 more
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τ ± νγγ and to probe the fermiophobic Higgs boson with high cutoff scales
Journal of High Energy Physics, 2023 The light fermiophobic Higgs boson h f in the type-I two-Higgs-doublet model can evade the current search programs at the LHC since its production through the quark-antiquark annihilation and gluon fusion is not feasible. The particle can be more elusive
Jinheung Kim +4 more
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Probing the electroweak final state in type I 2HDM at the LHC
Journal of High Energy Physics, 2023 Most of the experimental searches of the non-Standard Model Higgs boson(s) at the LHC rely on the QCD induced production modes. However, in some beyond Standard Model frameworks, the additional Higgs bosons can have fermiophobic behaviour. The type I two
Prasenjit Sanyal, Daohan Wang
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Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM
Journal of High Energy Physics, 2023 Determining if the SM-like Higgs is part of an extended Higgs sector is the most important question to be asked after discovery. A light charged Higgs boson with mass smaller than the sum of top and bottom quarks is naturally allowed in Type-I two Higgs ...
Disha Bhatia +2 more
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The flavor puzzle in multi-Higgs models [PDF]
Journal of High Energy Physics, 2010 26 pages, typos are corrected, references are added, the final ...
Gagik K. Yeghiyan +4 more
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Exploring wrong sign scenarios in the Yukawa-Aligned 2HDM
Journal of High Energy Physics, 2023 We discuss scenarios with wrong-sign (WS) Yukawa couplings for the discovered Higgs boson in the Yukawa-aligned two Higgs doublet model. In the WS scenario, Yukawa couplings for down-type quarks and/or charged leptons have an opposite sign as compared to
Shinya Kanemura +2 more
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The invariant space of multi-Higgs doublet models [PDF]
Journal of High Energy Physics, 2021 Abstract In a model with more than one scalar doublet, the parameter space encloses both physical and unphysical information. Invariant theory provides a detailed description of the counting and characterization of the physical parameter space. The Hilbert series for the 3HDM is computed for the first time using partition analysis,
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The flavourful present and future of 2HDMs at the collider energy frontier
Journal of High Energy Physics, 2022 We study the intersection of flavour and collider physics for Two-Higgs-Doublet models of Type I and II. Drawing from the flavour precision-LHC exotics search complementarity, we also provide a projection of the future sensitivity that can be achieved in
Oliver Atkinson +5 more
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