Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)

M. A. Arroyo-Ure&ntilde;a; J. Lorenzo Diaz-Cruz; Enrique D&iacute;az; Javier A. Orduz-Ducuara

doi:10.1088/1674-1137/40/12/123103

Chinese Physics C> 2016, Vol. 40> Issue(12) : 123103 DOI: 10.1088/1674-1137/40/12/123103

Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)

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Abstract：
Flavor violating Higgs signals, such as the top FCNC decay t→ch⁰ and the LFV Higgs decay h⁰→τμ, have been studied at the LHC. These signals can arise within the general Two-Higgs Doublet Model (THDM), where each Higgs doublet couples to all fermion types through Yukawa matrices Y₁^f and Y₂^f. The Yukawa matrices can be assumed to have the same form or they could have different structures. In this paper we study the case when both Y₁^f and Y₂^f have completely different forms, but in such a way that they complement to produce a specific hermitian mass matrix. We find that for specific four-zero textures, the flavor violating Higgs couplings depend only on the free parameters tan β, γ_f and the fermion masses. We use the current bounds on the low energy processes to derive constraints on the heavy Higgs boson mass, tan β and γ_f. Then, we use these constraints to evaluate the LFV Higgs decays, which reach branching ratios that could be tested at the LHC.
- THDM ,
- LFV ,
- textures

References

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M. A. Arroyo-Ureña, J. Lorenzo Diaz-Cruz, Enrique Díaz and Javier A. Orduz-Ducuara. Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)[J]. Chinese Physics C, 2016, 40(12): 123103. doi: 10.1088/1674-1137/40/12/123103

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Received: 2016-04-20
Revised: 2016-08-04

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Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)

Received Date: 2016-04-20

Accepted Date: 2016-08-04

Available Online: 2016-12-05

Abstract: Flavor violating Higgs signals, such as the top FCNC decay t→ch⁰ and the LFV Higgs decay h⁰→τμ, have been studied at the LHC. These signals can arise within the general Two-Higgs Doublet Model (THDM), where each Higgs doublet couples to all fermion types through Yukawa matrices Y₁^f and Y₂^f. The Yukawa matrices can be assumed to have the same form or they could have different structures. In this paper we study the case when both Y₁^f and Y₂^f have completely different forms, but in such a way that they complement to produce a specific hermitian mass matrix. We find that for specific four-zero textures, the flavor violating Higgs couplings depend only on the free parameters tan β, γ_f and the fermion masses. We use the current bounds on the low energy processes to derive constraints on the heavy Higgs boson mass, tan β and γ_f. Then, we use these constraints to evaluate the LFV Higgs decays, which reach branching ratios that could be tested at the LHC.

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Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)

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Flavor violating Higgs signals in the Texturized Two-Higgs Doublet Model (THDM-Tx)

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