High scale flavor alignment in two-Higgs doublet models and its phenomenology

Abstract

The most general two-Higgs doublet model (2HDM) includes potentially large sources of flavor changing neutral currents (FCNCs) that must be suppressed in order to achieve a phenomenologically viable model. The flavor alignment ansatz postulates that all Yukawa coupling matrices are diagonal when expressed in the basis of mass-eigenstate fermion fields, in which case tree-level Higgs mediated FCNCs are eliminated. In this work, we explore models with the flavor alignment condition imposed at a very high energy scale, which results in the generation of Higgs-mediated FCNCs via renormalization group running from the high energy scale to the electroweak scale. Using the current experimental bounds on flavor changing observables, constraints are derived on the aligned 2HDM parameter space. In the favored parameter region, we analyze the implications for Higgs boson phenomenology.

Explanations added. It matches the version published in JHEP

References in corpus (21)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Measurement of the branching ratio of ${\bar{B}}^0\to D^{\ast +}{\tau }^{-}{\bar{\nu }}_{\tau }$ relative to ${\bar{B}}^0\to D^{\ast +}{\ell }^{-}{\bar{\nu }}_{\ell }$ decays with a semileptonic tagging method
• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Weak Radiative Decays of the B Meson and Bounds on $M_{H^{\pm }}$ in the Two-Higgs-Doublet Model
• Version 3 of {\tt RunDec} and {\tt CRunDec}
• Quark mass relations to four-loop order
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and effective lifetime and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays
• Basis-independent methods for the two-Higgs-doublet model III: The CP-conserving limit, custodial symmetry, and the oblique parameters S, T, U
• Basis-independent methods for the two-Higgs-doublet model II. The significance of tan(beta)
• Cornering New Physics in b --> s Transitions
• Search for heavy Higgs bosons $A/H$ decaying to a top quark pair in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for a 'stable alignment limit' in two Higgs-doublet models
• $B_{s,d}^0\to {\ell }^{+}{\ell }^{-}$ Decays in the Aligned Two-Higgs-Doublet Model
• Physics at a 100 TeV pp collider: Standard Model processes
• Disentangling Flavor Violation in the Top-Higgs Sector at the LHC
• High-scale validity of a two-Higgs doublet scenario: a study including LHC data
• Measurement of the $\tau$ lepton polarization in the decay $\bar{B}\to D^{\ast }{\tau }^{-}{\bar{\nu }}_{\tau }$
• Standard Model updates and new physics analysis with the Unitarity Triangle fit
• Studies of dark sector & B decays involving $\tau$ at Belle and Belle II

Cited by in corpus (43)

• Status of the Charged Higgs Boson in Two Higgs Doublet Models
• Muon g-2 in the 2HDM: maximum results and detailed phenomenology
• Higgs bosons with large couplings to light quarks
• Flavour alignment in multi-Higgs-doublet models
• Aligned and Spontaneous Flavor Violation
• Heavy Higgs boson decays in the alignment limit of the 2HDM
• Large $h\to bs$ in generic two-Higgs-doublet models
• Power-aligned 2HDM: a correlative perspective on $(g-2{)}_{e,\mu }$
• Limits on the Charged Higgs Parameters in the Two Higgs Doublet Model using CMS $\sqrt{s}=13$ TeV Results
• Aligned CP-violating Higgs sector canceling the electric dipole moment
• Two Higgs Doublet Dark Matter Portal
• High scale impact in alignment and decoupling in two-Higgs doublet models
• Flavour Conservation in Two Higgs Doublet Models
• Comparing 2HDM $+$ Scalar and Pseudoscalar Simplified Models at LHC
• Heavy Higgs Searches: Flavour Matters
• Electroweak vacuum lifetime in two Higgs doublet models
• Singlet-Doublet Fermionic Dark Matter and Gravitational Wave in Two Higgs Doublet Extension of the Standard Model
• N-loop running should be combined with N-loop matching
• The Flavor-locked Flavorful Two Higgs Doublet Model
• Two-loop Prediction of the Anomalous Magnetic Moment of the Muon in the Two-Higgs Doublet Model with GM2Calc 2
• $Z_2$ breaking effects in 2-loop RG evolution of 2HDM
• Updated global fit of the aligned two-Higgs-doublet model with heavy scalars
• LHC bounds on coloured scalars
• Flavorful Two Higgs Doublet Models with a Twist
• Loop induced $H^{\pm }\to W^{\pm }Z$ decays in the aligned two-Higgs-doublet model
• New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies
• Light scalars within the $\mathcal{C}\mathcal{P}$-conserving Aligned-two-Higgs-doublet model
• P-even, CP-violating Signals in Scalar-Mediated Processes
• Higgs Boson Contributions to the Electron Electric Dipole Moment
• NLO Perturbativity Bounds on Quartic Couplings in Renormalizable Theories with ${\varphi }^4$-like Scalar Sectors
• The Ultraviolet Landscape of Two-Higgs Doublet Models
• Flavour Violating Effects of Yukawa Running in SMEFT
• Current Status of the Muon g-2 Interpretations within Two-Higgs-Doublet Models
• Probing Flavor Non-Universal Theories Through Higgs Physics at the LHC and Future Colliders
• The Charged Higgs from the Bottom-Up: Probing Flavor at the LHC
• Rare top-quark decays $t\to cg(g)$ in the aligned two-Higgs-doublet model
• The Higgs boson in the minimal 3-3-1 model
• The Electric Dipole Moment of the electron in the decoupling limit of the aligned Two-Higgs Doublet Model
• Relations between $b\to c\tau \nu$ Decay Modes in Scalar Models
• Hidden physics in pion and some other meson decays
• Exploring Wrong Sign Scenarios in the Yukawa-Aligned 2HDM
• 2-loop RG evolution of CP-violating 2HDM
• Probing Unification With Precision Higgs Physics