Probing the Higgs boson through Yukawa force

Banerjee, Avik; Bhattacharyya, Gautam

doi:10.1016/j.nuclphysb.2020.115261

Cited by 9 publications

(7 citation statements)

References 68 publications

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“…There have been many studies in the literature on the implications of the Higgs precision measurements at current and future colliders on the 2HDMs [39][40][41][42][43][44][45][46][47]. In recent works [48][49][50][51][52][53], we examined the achievable sensitivity of the Higgs and Z factories to probe the virtual effects of the two Higgs doublet model (2HDM) of Type-II and Type-I.…”

Section: Jhep01(2021)045mentioning

confidence: 99%

Comparative studies of 2HDMs under the Higgs boson precision measurements

Han

et al. 2021

J. High Energ. Phys.

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We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under the precision measurements of the Standard Model (SM) Higgs observables at the proposed Higgs factories. We explore the discovery potential based on the hypothetical deviations in the precision data for the 2HDMs up to one-loop level. We find 5σ observability from the χ2 fitting in a significant theory parameter space at future Higgs factories. For the Type-I 2HDM, regions with cos(β − α) ≲ −0.1 or cos(β − α) ≳ 0.08 are discoverable at more than 5σ level. For the other three types of 2HDMs, the 5σ region is even bigger: | cos(β − α)| ≳ 0.02 for tan β ∼ 1. At small and large values of tan β, the region in cos(β − α) is further tightened. We examine the extent to which the different 2HDM theories may be distinguishable from one to the other at the 95% Confidence Level with four benchmark points as case studies. We show that a large part of the parameter space of the other types of 2HDMs can be distinguished from the benchmark points of the target model. The impacts of loop corrections are found to be significant in certain parameter regions.

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Section: Jhep01(2021)045mentioning

confidence: 99%

Comparative studies of 2HDMs under the Higgs boson precision measurements

Han

et al. 2021

J. High Energ. Phys.

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“…It implies that the couplings of the 125 GeV Higgs to fermions (hf f ) and gauge bosons (hV V ) are consistent with those predicted by the SM, even though some mismatch still exists in the fermionic couplings [10,[38][39][40]. These measurements are found to be in favor of the alignment limit [41,42] in a 2HDM-like setup i.e. | sin(β − α)| ∼ 1.…”

Section: Constraints From Lhcmentioning

confidence: 69%

Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics

Kumar,

Sadhukhan

2020

Preprint

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The low energy effective theory (∼ TeV) of the little-Higgs model with SU (6)/Sp(6), as proposed by Low, Schiba and Smith (LSS), exhibits a two-Higgs doublet model (2HDM) structure. The symmetry dictates interesting Yukawa patterns, translating to non-trivial fermion couplings with both of the Higgs doublets. The couplings of the scalars with the fermions can induce flavor changing neutral currents, which get constraints from flavor physics observables such as BR(B → X s γ), B s − B s mixing etc. The precision measurement of Zbb vertex, the top and Higgs mass along with other Higgs coupling measurements at the Large Hadron Collider (LHC) also put severe restrictions on the LSS model. Direct LHC search results of beyond the Standard Model (BSM) particles also impose bounds on the masses. We probe the LSS model in view of the above constraints through a random scan in the multi-dimensional parameter space. We observe, on contrary to the general 2HDM scenario, the emergent 2HDM from the LSS model is less constrained from the flavor data and the Zbb measurement but is severely constrained form the electroweak (EW) searches at the LHC. From the flavor data and Zbb, we find that the charged Higgs mass is relaxed with tan β being restricted to 0.5 − 5, whereas the charged Higgs mass is pushed to larger than 1 TeV along with tan β being further restricted to < 3 when the LHC bounds are incorporated.

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“…Thus, H, A and H ± are allowed to have broad mass ranges. There are some recent studies on the status of type-I and type-II 2HDMs confronted with the direct searches at the LHC, see, e.g., [106,107,108,109,110,111,112,113,114,115,116]. Flipping the sign of λ 5 , A will be the DM candidate.…”

Section: Searches For Additional Scalars At Lhcmentioning

confidence: 99%

Two-Higgs-doublet models in light of current experiments: a brief review

Wang,

Yang,

Zhang

2022

Preprint

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We briefly survey several typical CP-conserving two-Higgs-doublet models (2HDMs) in light of current experiments. First we derive the masses and couplings of the mass eigenstates from the Lagrangians. Then we analyze the constraints from theory and oblique electroweak parameters. Finally, we delineate the status of 2HDM in light of the LHC searches, the dark matter detections and the muon g − 2 measurement.

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Probing the Higgs boson through Yukawa force

Cited by 9 publications

References 68 publications

Comparative studies of 2HDMs under the Higgs boson precision measurements

Comparative studies of 2HDMs under the Higgs boson precision measurements

Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics

Two-Higgs-doublet models in light of current experiments: a brief review

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