Asymmetric lepton-flavor violating Higgs decays

Abstract

We introduce a new method to search for the lepton-flavor violating Higgs decays $h\to \tau \mu$ and $h\to \tau e$ in the leptonic $\tau$ decay channel. In particular, the Standard Model background is estimated in a fully data driven way. The method exploits the asymmetry between electrons and muons in the final state of signal events and is sensitive to differences in the rates of the two decays. Using this method, we investigate the LHC sensitivity to these processes. With 20 ${\mathrm{fb}}^{-1}$ of data at $\sqrt{s}=8$ TeV, we expect a $3\sigma$ sensitivity for observing branching ratios of order $0.9\%$. The method and the suggested statistical treatment are discussed in detail.

arXiv comment10 pages, 5 figures

References in corpus (37)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• A Brief Introduction to PYTHIA 8.1
• Asymptotic formulae for likelihood-based tests of new physics
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Theory and phenomenology of two-Higgs-doublet models
• MadGraph 5 : Going Beyond
• Vector boson pair production at the LHC
• Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
• FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order
• NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels
• NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction
• Flavor Violating Higgs Decays
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• Measurement of the top quark-pair production cross section with ATLAS in pp collisions at $\sqrt{s}=7\TeV$
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• Anatomy and Phenomenology of mu-tau Lepton Flavour Violation in the MSSM
• Vector-like leptons: Higgs decays and collider phenomenology
• Higgs-dependent Yukawa couplings
• Search for new physics in events with same-sign dileptons and jets in pp collisions at sqrt(s) = 8 TeV
• Lepton Flavour Violating Decays of Supersymmetric Higgs Bosons
• Higgs-Mediated tau --> mu and tau --> e transitions in II Higgs doublet Model and Supersymmetry
• 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
• Modified Higgs branching ratios versus CP and lepton flavor violation
• $h\to \mu \tau$ at Hadron Colliders
• Lepton flavour violating Higgs and tau to mu gamma
• Higgs Decays in the Low Scale Type I See-Saw Model
• Comprehensive Analysis on Lepton Flavor Violating Higgs Boson to mu tau Decay in Supersymmetry without R Parity
• Search for the lepton flavor violating decay A^0/H^0 --> tau^{+/-} mu^{+/-} at hadron colliders
• Search for the Standard Model Higgs boson in the H to tau+ tau- decay mode in sqrt(s) = 7 TeV pp collisions with ATLAS
• Two-Higgs Leptonic Minimal Flavour Violation
• Non-decoupling SUSY in LFV Higgs decays: a window to new physics at the LHC
• LHC sensitivity to the decay of a Higgs boson to tau mu
• What if BR(h-->μμ)/BR(h-->ττ) does not equal m_μ^2/m_τ^2?
• Lepton-flavor violating decays of neutral Higgs to muon and tauon in supersymmetric economical 3-3-1 model
• Flavor violating decays of the Higgs bosons in the THDM-III
• mu to 3e and mu to e Conversion in Gauge-Higgs Unification

Cited by in corpus (24)

• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• Search for lepton-flavour-violating decays of the Higgs and $Z$ bosons with the ATLAS detector
• Flavor constraints on the Two Higgs Doublet Models of $Z_2$ symmetric and aligned types
• Model building for flavor changing Higgs couplings
• Analysis of the $h,H,A\to \tau \mu$ decays induced from SUSY loops within the Mass Insertion Approximation
• Lepton flavor violating decays of Standard-Model-like Higgs in 3-3-1 model with neutral lepton
• The Lepton Flavour Violating Higgs Decays at the HL-LHC and the ILC
• Decay of standard model-like Higgs boson $h\to \mu \tau$ in a 3-3-1 model with inverse seesaw neutrino masses
• Higgs Decay $h\to \mu \tau$ with Minimal Flavor Violation
• Flavor violating signatures of lighter and heavier Higgs bosons within the Two Higgs Doublet Model Type-III at the LHeC
• Lepton flavor violating Higgs boson decays in seesaw models: new discussions
• Searches for lepton-flavour-violating decays of the Higgs boson into $e\tau$ and $\mu \tau$ in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• 125 GeV Higgs decay with lepton flavor violation in the $\mu \nu$SSM
• Lepton flavor violating decay of SM-like Higgs in a radiative neutrino mass model
• Data-Directed Search for New Physics based on Symmetries of the SM
• A Data-Directed Paradigm for BSM searches: the bump-hunting example
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• One loop contributions to neutral Higgs decay h-->mu tau
• Model-independent search strategy for the lepton-flavor-violating heavy Higgs boson decay to $\tau \mu$ at the LHC
• Search for axion-like particles through nuclear Primakoff production using the GlueX detector
• Disentangling new physics contributions in lepton flavour violating tau decays
• Dark sectors and enhanced $h\to \tau \mu$ transitions
• Probing chirality structure in lepton-flavour-violating Higgs decay $h\to \tau \mu$ at the LHC
• Radiatively-induced LFV Higgs Decays from Massive ISS Neutrinos