Probing doubly and singly charged Higgs bosons at the 
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 collider HE-LHC

Padhan, Rojalin; Das, Debottam; Mitra, Manimala; Nayak, A.

doi:10.1103/physrevd.101.075050

Cited by 28 publications

(10 citation statements)

References 84 publications

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“…The gauge interactions of H ± and H ±± with the SM photon, W and Z bosons in table 1 are relevant for the pair production H ++ H −− and the associated production H ±± H ∓ of the doubly-charged scalar at hadron colliders, as in the Type-II seesaw case [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49]. The remaining couplings in table 1 are relevant to the decays of H ± and H ±± .…”

Section: Key Parameters and Decay Channels Of H ±± And H ±mentioning

confidence: 99%

Leptonic scalars and collider signatures in a UV-complete model

Dev¹,

Dutta

Ghosh

et al. 2022

J. High Energ. Phys.

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We study the non-standard interactions of neutrinos with light leptonic scalars (ϕ) in a global (B − L)-conserved ultraviolet (UV)-complete model. The model utilizes Type-II seesaw motivated neutrino interactions with an SU(2)L-triplet scalar, along with an additional singlet in the scalar sector. This UV-completion leads to an enriched spectrum and consequently new observable signatures. We examine the low-energy lepton flavor violation constraints, as well as the perturbativity and unitarity constraints on the model parameters. Then we lay out a search strategy for the unique signature of the model resulting from the leptonic scalars at the hadron colliders via the processes H±±→ W±W±ϕ and H±→ W±ϕ for both small and large leptonic Yukawa coupling cases. We find that via these associated production processes at the HL-LHC, the prospects of doubly-charged scalar H±± can reach up to 800 (500) GeV and 1.1 (0.8) TeV at the 2σ (5σ) significance for small and large Yukawa couplings, respectively. A future 100 TeV hadron collider will further increase the mass reaches up to 3.8 (2.6) TeV and 4 (2.7) TeV, at the 2σ (5σ) significance, respectively. We also demonstrate that the mass of ϕ can be determined at about 10% accuracy at the LHC for the large Yukawa coupling case even though it escapes as missing energy from the detectors.

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Section: Key Parameters and Decay Channels Of H ±± And H ±mentioning

confidence: 99%

Leptonic scalars and collider signatures in a UV-complete model

Dev¹,

Dutta

Ghosh

et al. 2022

J. High Energ. Phys.

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show abstract

“…Couplings The gauge interactions of H ± and H ±± with the SM photon, W and Z bosons in Table 1 are relevant for the pair production H ++ H −− and the associated production H ±± H ∓ of the doubly-charged scalar at hadron colliders, as in the Type-II seesaw case [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. The remaining couplings in Table 1 are relevant to the decays of H ± and H ±± .…”

Section: Verticesmentioning

confidence: 99%

Leptonic Scalars and Collider Signatures in a UV-complete Model

Dev,

Dutta,

Ghosh

et al. 2021

Preprint

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We study the non-standard interactions of neutrinos with light leptonic scalars (φ) in a global (B − L)-conserved ultraviolet (UV)-complete model. The model utilizes Type-II seesaw motivated neutrino interactions with an SU (2) L -triplet scalar, along with an additional singlet in the scalar sector. This UV-completion leads to an enriched spectrum and consequently new observable signatures. We examine the low-energy lepton flavor violation constraints, as well as the perturbativity and unitarity constraints on the model parameters. Then we lay out a search strategy for the unique signature of the model resulting from the leptonic scalars at the hadron colliders via the processes H ±± → W ± W ± φ and H ± → W ± φ for both small and large leptonic Yukawa coupling cases. We find that via these associated production processes at the HL-LHC, the prospects of doubly-charged scalar H ±± can reach up to 800 (500) GeV and 1.1 (0.8) TeV at the 2σ (5σ) significance for small and large Yukawa couplings, respectively. A future 100 TeV hadron collider will further increase the mass reaches up to 3.8 (2.6) TeV and 4 (2.7) TeV, at the 2σ (5σ) significance, respectively. We also demonstrate that the mass of φ can be determined at about 10% accuracy at the LHC for the large Yukawa coupling case even though it escapes as missing energy from the detectors.

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“…In addition, we assume the doubly charged scalar mass to be around TeV scale to avoid collider constraints [56][57][58]. In this case the BRs for leptonic modes are simply given by [59]…”

Section: B Branching Ratio Of Doubly Charged Scalar Bosonmentioning

confidence: 99%

Type II seesaw models with modular A4 symmetry

Kobayashi

Nomura²,

Shimomura

2020

Phys. Rev. D

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We discuss type II seesaw models adopting modular A 4 symmetry in a supersymmetric framework. In our approach, the models are classified by the assignment of A 4 representations and modular weights for leptons and triplet Higgs fields. Then neutrino mass matrix is characterized by modulus τ and two free parameters. Carrying out numerical analysis, we find allowed parameter sets which can fit the neutrino oscillation data. For the allowed parameter sets, we obtain the predictions in the neutrino sector such as CP violating phases and the lightest neutrino mass. Finally, we also show the predictions for the branching ratios of a doubly charged scalar boson, focusing on the case where the doubly charged scalar boson dominantly decays into charged leptons.

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Probing doubly and singly charged Higgs bosons at the pp collider HE-LHC

Cited by 28 publications

References 84 publications

Leptonic scalars and collider signatures in a UV-complete model

Leptonic scalars and collider signatures in a UV-complete model

Leptonic Scalars and Collider Signatures in a UV-complete Model

Type II seesaw models with modular A4 symmetry

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