Natural fermion mass hierarchy and new signals for the Higgs boson

Abstract

We suggest a novel approach towards resolving the fermion mass hierarchy problem within the framework of the Standard Model. It is shown that the observed masses and mixings can be explained with order one couplings using successive higher dimensional operators involving the SM Higgs doublet field. This scenario predicts flavor-dependent enhancement in the the Higgs boson coupling to the fermions (by a factor of 3 to the b-quark and τand by a factor of 5 to μrelative to the SM). It also predicts flavor changing \bar{t}ch^0 interaction with a strength comparable to that of \bar{b}bh^0. This opens up a new discovery channel for the Higgs boson at the upgraded Tevatron and the LHC through t -> ch^0 or h^0 -> \bar{t}c + \bar{c}t. Additional tests of the framework include D^0-\bar{D^0} mixing which is predicted to be near the current experimental limit and a host of new phenomena associated with flavor physics at the TeV scale.

10 pages in RevTeX

References in corpus (1)

• Standard Model Confronting New Results for epsilon'/epsilon

Cited by in corpus (63)

• Flavor Violating Higgs Decays
• Rare Charm Decays in the Standard Model and Beyond
• Systematic study of the d=5 Weinberg operator at one-loop order
• Higgs-dependent Yukawa couplings
• Higgs Mediated FCNC's in Warped Extra Dimensions
• Neutrino masses from higher than d=5 effective operators
• Composite Higgs-Mediated FCNC
• Systematic classification of two-loop realizations of the Weinberg operator
• Flavor Gauge Models Below the Fermi Scale
• Total cross-section for Higgs boson hadroproduction with anomalous Standard Model interactions
• Higgs-induced lepton flavor violation
• Direct CP violation in charm and flavor mixing beyond the SM
• FCNC Effects in a Minimal Theory of Fermion Masses
• The fully differential hadronic production of a Higgs boson via bottom quark fusion at NNLO
• Minimal Composite Higgs Model with Light Bosons
• LHC sensitivity to the decay of a Higgs boson to tau mu
• What if the Masses of the First Two Quark Families are not Generated by the Standard Higgs?
• A First-Order Electroweak Phase Transition from Varying Yukawas
• Phenomenology of flavon fields at the LHC
• Creating the Fermion Mass Hierarchies with Multiple Higgs Bosons
• Cascade Seesaw for Tiny Neutrino Mass
• New Signatures of Flavor Violating Higgs Couplings
• Flavon exchange effects in models with abelian flavor symmetry
• Collider Constraints on Lepton Flavor Violation in the 2HDM
• The Higgs boson Turns Ten
• Probing New Physics in Higgs Couplings to Fermions using an Angular Analysis
• Solving the fermionic mass hierarchy of the standard model
• A low-scale flavon model with a $Z_N$ symmetry
• Neutrino mass from higher than d=5 effective operators in SUSY, and its test at the LHC
• A light scalar as the messenger of electroweak and flavor symmetry breaking
• Froggatt-Nielsen mechanism in a model with $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$ gauge group
• A new solution of the fermionic mass hierarchy of the standard model
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• Flavour bounds on the flavon of a minimal and a non-minimal ${\mathcal{Z}}_2\times {\mathcal{Z}}_N$ symmetry
• Proceedings of the first workshop on Flavor Symmetries and consequences in Accelerators and Cosmology (FLASY2011)
• Solving the Wrong Hierarchy Problem
• LHC Constraints on a $(B-L{)}_3$ Gauge Boson
• An explicit SU(12) family and flavor unification model with natural fermion masses and mixings
• Origin of the VEVs hierarchy
• Revisiting the Dirac Nature of Neutrinos in the Light of $\Delta (27)$ and Cyclic Symmetries
• Natural fermion mass hierarchy and mixings in family unification
• Flavonic dark matter
• Thermal dark matter via the flavon portal
• Hidden Signals of New Physics within the Yukawa Couplings of the Higgs boson
• Neutrino masses along with fermion mass hierarchy
• Finding flavons at colliders
• Fermion mass hierarchy and lepton flavor violation using $CP$ symmetry
• Lepton and quark mixing patterns with generalized CP transformations
• Flavor from the Electroweak Scale
• CP violation with Higgs-dependent Yukawa couplings
• Higgs Phenomenology in Warped Extra-Dimensions with a 4th Generation
• Unification of gauge, family, and flavor symmetries illustrated in gauged SU(12) models
• Unveiling Neutrino Mysteries with $\Delta (27)$ Symmetry
• The problem of flavour
• Fermion Mass Hierarchy from Symmetry Breaking at the TeV Scale
• The standard HVM
• Multi-charged TeV scale scalars and fermions in the framework of a radiative seesaw model
• Fermion mass hierarchy and new physics at the TeV scale
• Improved Bounds and Global Fit of Flavor-Violating Charged Lepton Yukawa Couplings post LHC
• Phenomenology of the standard HVM and 95.4 GeV excess
• Explaining Fermions Mass and Mixing Hierarchies through $U(1{)}_X$ and $Z_2$ Symmetries
• Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter
• Novel and Updated Bounds on Flavor-Violating Z Interactions in the Quark Sector