Lepton flavor violating Higgs decay at $e^{+}{e}^{-}$ colliders

Abstract

We estimate the smallest branching ratio for the Higgs decay channel $h\to \mu \tau$, which can be probed at an $e^{+}{e}^{-}$ collider and compare it with the projected reach at the high-luminosity run of the LHC. Using a model-independent approach, Higgs production is considered in two separate cases. In the first case, $hWW$ and $hZZ$ couplings are allowed to be scaled by a factor allowed by the latest experimental limits on $hWW$ and $hZZ$ couplings. In the second case, we have introduced higher-dimensional effective operators for these interaction vertices. Keeping BR($h\to \mu \tau$) as a purely phenomenological quantity, we find that this branching ratio can be probed down to $\approx 2.69\times 10^{-3}$ and $\approx 5.83\times 10^{-4}$ respectively, at the 250 GeV and 1000 GeV run of an $e^{+}{e}^{-}$ collider.

37 pages, 13 figures, 13 tables

References in corpus (77)

• 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
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• FastJet user manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Theory and phenomenology of two-Higgs-doublet models
• MadGraph 5 : Going Beyond
• Dimension-Six Terms in the Standard Model Lagrangian
• FeynRules - Feynman rules made easy
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Measurement of the properties of a Higgs boson in the four-lepton final state
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• Explaining $h\to {\mu }^{\pm }{\tau }^{\mp }$, $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$ and $B\to K{\mu }^{+}{\mu }^{-}/B\to K{e}^{+}{e}^{-}$ in a two-Higgs-doublet model with gauged $L_{\mu }-L_{\tau }$
• Flavor Violating Higgs Decays
• Measurement of Higgs boson production in the diphoton decay channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
• Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons
• Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
• Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
• Search for lepton-flavour-violating decays of the Higgs boson
• A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model
• Measurements of Higgs boson production and couplings in the four-lepton channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
• Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector
• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• Observation and measurement of Higgs boson decays to $W{W}^{\ast }$ with the ATLAS detector
• Identifying the Higgs Spin and Parity in Decays to Z Pairs
• Robust Determination of the Higgs Couplings: Power to the Data
• Search for the $b\bar{b}$ decay of the Standard Model Higgs boson in associated $(W/Z)H$ production with the ATLAS detector
• Constraining anomalous Higgs interactions
• Probing lepton flavour violation with Higgs boson decays H-> li+lj
• Lepton flavor violating Higgs boson decays from massive seesaw neutrinos
• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• Global Analysis of the Higgs Candidate with Mass ~ 125 GeV
• Search for lepton-flavour-violating decays of the Higgs and $Z$ bosons with the ATLAS detector
• Flavour Changing Higgs Couplings in a Class of Two Higgs Doublet Models
• Lepton flavor violation in low-scale seesaw models: SUSY and non-SUSY contributions
• New Physics Models Facing Lepton Flavor Violating Higgs Decays at the Percent Level
• Lepton-flavor-violating Higgs decay $h\to \mu \tau$ and muon anomalous magnetic moment in a general two Higgs doublet model
• $h\to \mu \tau$ at Hadron Colliders
• Search for lepton-flavour-violating $H\to \mu \tau$ decays of the Higgs boson with the ATLAS detector
• Constraining extra-fermion(s) from the Higgs boson data
• Higher dimensional operators and LHC Higgs data : the role of modified kinematics
• Directly Measuring the Tensor Structure of the Scalar Coupling to Gauge Bosons
• New Higgs interactions and recent data from the LHC and the Tevatron
• Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
• Comprehensive Analysis on Lepton Flavor Violating Higgs Boson to mu tau Decay in Supersymmetry without R Parity
• Enhancement of the lepton flavor violating Higgs boson decay rates from SUSY loops in the inverse seesaw model
• Study of $(W/Z)H$ production and Higgs boson couplings using $H\to W{W}^{\ast }$ decays with the ATLAS detector
• Higgs couplings beyond the Standard Model
• Analysis of the $h,H,A\to \tau \mu$ decays induced from SUSY loops within the Mass Insertion Approximation
• Effective lepton flavor violating $\mathbf{H}{\mathbf{\ell }}_{\mathbf{i}}{\mathbf{\ell }}_{\mathbf{j}}$ vertex from right-handed neutrinos within the mass insertion approximation
• Higgs Flavor Violation as a Signal to Discriminate Models
• Non-decoupling SUSY in LFV Higgs decays: a window to new physics at the LHC
• Leptoquark induced rare decay amplitudes $h\to {\tau }^{\mp }{\mu }^{\pm }$ and $\tau \to \mu \gamma$
• Higgs lepton flavour violation: UV completions and connection to neutrino masses
• Higgs to mu tau Decay in Supersymmetry without R Parity
• The Lepton Flavour Violating Higgs Decays at the HL-LHC and the ILC
• $h,Z\to {\ell }_i{\bar{\ell }}_j$, $\Delta a_{\mu }$, $\tau \to (3\mu ,\mu \gamma )$ in generic two-Higgs-doublet models
• Is the New Resonance Spin 0 or 2? Taking a Step Forward in the Higgs Boson Discovery
• Prima Facie Evidence against Spin-Two Higgs Impostors
• Flavor violating signatures of lighter and heavier Higgs bosons within the Two Higgs Doublet Model Type-III at the LHeC
• $H\to \ell {\ell }^{\prime }$ in the Simplest Little Higgs Model
• Large BR(h->tau mu) in the MSSM?
• Cornering dimension-6 $HVV$ interactions at high luminosity LHC: the role of event ratios
• Minimal Models of Loop-Induced Higgs Lepton Flavor Violation
• Two-Higgs-Doublet type-II and -III models and $t\to ch$ at the LHC
• Lepton flavor violating Higgs boson decay $h\to \mu \tau$ at the ILC
• On the exotic Higgs decays in effective field theory
• Lepton flavour violating decay of 125 GeV Higgs boson to $\mu \tau$ channel and excess in $t\bar{t}H$
• Lepton flavor-violating decays of the Higgs boson from sgoldstino mixing
• Linking LFV Higgs decays $h\to {\ell }_i{\ell }_j$ with CP violation in multi-scalar models

Cited by in corpus (9)

• Lepton Flavor Violation Induced by a Neutral Scalar at Future Lepton Colliders
• Charged lepton flavor violating Higgs decays at future $e^{+}{e}^{-}$ colliders
• Search for a heavy dark photon at future $e^{+}{e}^{-}$ colliders
• Higgs lepton flavor violating decays in Two Higgs Doublet Models
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• Lepton flavor violating decays of the SM-like Higgs boson $h\to e_i{e}_j$, and $e_i\to e_j\gamma$ in a flipped 3-3-1 model
• Probing chirality structure in lepton-flavour-violating Higgs decay $h\to \tau \mu$ at the LHC
• Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles