Probing chirality structure in lepton-flavour-violating Higgs decay $h\to \tau \mu$ at the LHC

Abstract

A phenomenological study for determining the chirality structure in lepton-flavor-violating Higgs (hLFV) decays $h\to \tau \mu$ at the LHC is presented. We estimate the effects of the $\tau$ polarization in the analysis andthe importance of determining the relative visible momentum ratio $x$, and show the analysis with a collinear mass $m_{col1}$ by assuming one missing particle is appropriate. We find that the sensitivity would be generically affected up to $\pm$ $4-6$~\% in terms of the BR$(h\to \tau \mu )$ upper bound, and show the altered bounds on the $(|y_{\mu \tau }|,|y_{\tau \mu }|)$ plane. We further study the benchmark scenarios, and demonstrate the sensitivity study for the chirality structure using the relative visible momentum ratio. We find that the two fully polarized cases, the ${\tau }_R$ and ${\tau }_L$ scenarios consistent with the recently reported excess, are distinguishable at 2$\sigma$ level for 1000~fb${}^{-1}$. We also show that a further improved study potentially provides a similar sensitivity already for 139~fb${}^{-1}$.

arXiv commentPublished in Phys. Rev. D 107, 055037, 27 pages, 8 figures and 5 tables

References in corpus (90)

• 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
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Dimension-Six Terms in the Standard Model Lagrangian
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• The Belle II Physics Book
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• 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
• An Improved Limit on the Muon Electric Dipole Moment
• Handbook of LHC Higgs Cross Sections: 2. Differential Distributions
• A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• A New Mass Reconstruction Technique for Resonances Decaying to di-tau
• Handbook of LHC Higgs Cross Sections: 3. Higgs Properties
• 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
• Search for the Electric Dipole Moment of the tau Lepton
• Feynman Rules for the Standard Model Effective Field Theory in $R_{\xi }$-gauges
• Lepton Flavour Violating Decays of Supersymmetric Higgs Bosons
• Higgs $\to \mu \tau$ in Abelian and Non-Abelian Flavor Symmetry Models
• 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
• Lepton flavor violation in the Higgs sector and the role of hadronic tau-lepton decays
• Lepton flavor violation in Higgs boson decays under the rare tau decay results
• Higgs-induced lepton flavor violation
• A $L_{\mu }-L_{\tau }$ theory of Higgs flavor violation and $(g-2{)}_{\mu }$
• Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
• Enhancement of the lepton flavor violating Higgs boson decay rates from SUSY loops in the inverse seesaw model
• Model building for flavor changing Higgs couplings
• Effective Higgs Vertices in the generic MSSM
• Search for lepton-flavor violating decays of the Higgs boson in the $\mu \tau$ and e$\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for Lepton Flavor Violation in the Higgs Boson Decay at a Linear Collider
• TauDecay: a library to simulate polarized tau decays via FeynRules and MadGraph5
• Searches for lepton-flavour-violating decays of the Higgs boson in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• $\tau$- and $\mu$-physics in a general two Higgs doublet model with $\mu -\tau$ flavor violation
• 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
• Lepton flavor violating decays of Standard-Model-like Higgs in 3-3-1 model with neutral lepton
• Higgs Flavor Violation as a Signal to Discriminate Models
• A More Flavored Higgs boson in Supersymmetric models
• A Search for the Electric Dipole Moment of the Tau-Lepton
• Leptoquark explanation of $h\to \mu \tau$ and muon $(g-2)$
• 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 $\tau \to \mu \gamma$
• LHC sensitivity to the decay of a Higgs boson to tau mu
• Higgs lepton flavour violation: UV completions and connection to neutrino masses
• Higgs to mu tau Decay in Supersymmetry without R Parity
• Charged lepton flavor violating Higgs decays at future $e^{+}{e}^{-}$ colliders
• Naturally Large Radiative Lepton Flavor Violating Higgs Decay Mediated by Lepton-flavored Dark Matter
• Lepton-flavor violating decays of neutral Higgs to muon and tauon in supersymmetric economical 3-3-1 model
• The Lepton Flavour Violating Higgs Decays at the HL-LHC and the ILC
• Asymmetric lepton-flavor violating Higgs decays
• Higgs Decay $h\to \mu \tau$ with Minimal Flavor Violation
• Lepton number violation in 331 models
• Flavor Changing Leptonic Decays of Heavy Higgs Bosons
• Lepton flavor violating Higgs boson decays in seesaw models: new discussions
• $H\to \ell {\ell }^{\prime }$ in the Simplest Little Higgs Model
• A Study of Lepton Flavor Violating $\mu N(eN)\to \tau X$ Reactions in Supersymmetric Models
• Higgs lepton flavor violating decays in Two Higgs Doublet Models
• Probing Lepton Flavor Violation at the 13 TeV LHC
• Collider Constraints on Lepton Flavor Violation in the 2HDM
• Flavor techniques for LFV processes: Higgs decays in a general seesaw model
• Lepton Flavor Violating Decays of Neutral Higgses in Extended Mirror Fermion Model
• Sensitivity of future lepton colliders to the search for charged lepton flavor violation
• 125 GeV Higgs decay with lepton flavor violation in the $\mu \nu$SSM
• Flavor Changing Heavy Higgs Interactions with Leptons at Hadron Colliders
• Higgs mediated CLFV processes $\mu N(eN)\to \tau X$ via gluon operators
• Lepton flavor violating Higgs boson decay $h\to \mu \tau$ at the ILC
• Testing neutrino mass generation mechanisms from the lepton flavor violating decay of the Higgs boson
• Current Status of Top-Specific Variant Axion Model
• Probing Variant Axion Models at LHC
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Yukawa sector for LFV in $h\to \mu \tau$ and CP violation in $h\to \tau \tau$
• Model-independent search strategy for the lepton-flavor-violating heavy Higgs boson decay to $\tau \mu$ at the LHC
• Low energy phenomena of the lepton sector in an $A_4$ symmetry model with heavy inverse seesaw neutrinos
• The Coming Decade of $h\to \tau \mu$ and $\tau \to \mu \gamma$ Interplay in $\tau$ Flavor Violation Search
• Zee Model with Flavor Dependent Global $U(1)$ Symmetry
• Muon g-2 and rare top decays in up-type specific variant axion models
• Lepton flavor violating Higgs decay at $e^{+}{e}^{-}$ colliders
• 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
• Lepton flavor violating Higgs Boson Decays in Supersymmetric High Scale Seesaw Models
• Flavor violating leptonic decays of the Higgs boson
• Contribution of heavy neutrinos to decay of standard-model-like Higgs boson $h\to \mu \tau$ in a 3-3-1 model with additional gauge singlets
• Large signal of $h\to \mu \tau$ within the constraints of $e_i\to e_j\gamma$ decays in the 3-3-1 model with neutral leptons
• Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange

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