Search for lepton flavour violating decays of a neutral heavy Higgs boson to $\mu \tau$ and e$\tau$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Abstract

A search for lepton flavour violating decays of a neutral non-standard-model Higgs boson in the $\mu \tau$ and e$\tau$ decay modes is presented. The search is based on proton-proton collisions at a center of mass energy $\sqrt{s}=$ 13 TeV collected with the CMS detector in 2016, corresponding to an integrated luminosity of 35.9 fb${}^{-1}$. The $\tau$ leptons are reconstructed in the leptonic and hadronic decay modes. No signal is observed in the mass range 200-900 GeV. At 95% confidence level, the observed (expected) upper limits on the production cross section multiplied by the branching fraction vary from 51.9 (57.4) fb to 1.6 (2.1) fb for the $\mu \tau$ and from 94.1 (91.6) fb to 2.3 (2.3) fb for the e$\tau$ decay modes.

arXiv commentReplaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-18-017 (CMS Public Pages)

References in corpus (68)

• 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
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• Asymptotic formulae for likelihood-based tests of new physics
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Confidence Level Computation for Combining Searches with Small Statistics
• Dispelling the N^3 myth for the Kt jet-finder
• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Non-Abelian Discrete Symmetries in Particle Physics
• Pileup subtraction using jet areas
• The CMS trigger system
• Merging meets matching in MC@NLO
• The Catchment Area of Jets
• Observation of a new boson with mass near 125 GeV in pp collisions at sqrt(s) = 7 and 8 TeV
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
• Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Combined measurements of Higgs boson couplings in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• NLO Higgs boson production via gluon fusion matched with shower in POWHEG
• Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
• Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM
• Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons
• Performance of missing transverse momentum reconstruction in proton-proton collisions at $\sqrt{s}=$ 13 TeV using the CMS detector
• Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
• Jet pair production in POWHEG
• Search for lepton-flavour-violating decays of the Higgs boson
• Observation of the Higgs boson decay to a pair of tau leptons with the CMS detector
• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• Measurement of the inelastic proton-proton cross section at $\sqrt{s}=$ 13 TeV
• Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions
• Performance of reconstruction and identification of $\tau$ leptons decaying to hadrons and ${\nu }_{\tau }$ in pp collisions at $\sqrt{s}=$ 13 TeV
• A minimal set of top-Higgs anomalous couplings
• Higgs-dependent Yukawa couplings
• Search for additional neutral MSSM Higgs bosons in the $\tau \tau$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Probing lepton flavour violation with Higgs boson decays H-> li+lj
• Lepton flavor violating Higgs boson decays from massive seesaw neutrinos
• Higgs Mediated FCNC's in Warped Extra Dimensions
• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• Reconstruction and identification of tau lepton decays to hadrons and tau neutrino at CMS
• Natural Neutrino Masses and Mixings from Warped Geometry
• Search for lepton-flavour-violating decays of the Higgs and $Z$ bosons with the ATLAS detector
• Composite Higgs-Mediated FCNC
• Leptonic CP Asymmetries in Flavor-changing H0 Decays
• Higgs-induced lepton flavor violation
• Modified Higgs branching ratios versus CP and lepton flavor violation
• $h\to \mu \tau$ at Hadron Colliders
• Search for lepton-flavour-violating $H\to \mu \tau$ decays of the Higgs boson with the ATLAS detector
• Electroweak and Flavour Structure of a Warped Extra Dimension with Custodial Protection
• Comprehensive Analysis on Lepton Flavor Violating Higgs Boson to mu tau Decay in Supersymmetry without R Parity
• Search for lepton flavour violating decays of the Higgs boson to e tau and e mu in proton-proton collisions at sqrt(s) = 8 TeV
• Search for lepton flavour violating decays of the Higgs boson to $\mu \tau$ and e$\tau$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Enhancement of the lepton flavor violating Higgs boson decay rates from SUSY loops in the inverse seesaw model
• Analysis of the $h,H,A\to \tau \mu$ decays induced from SUSY loops within the Mass Insertion Approximation
• The Impact of Kaluza-Klein Fermions on Standard Model Fermion Couplings in a RS Model with Custodial Protection
• Non-decoupling SUSY in LFV Higgs decays: a window to new physics at the LHC
• Flavor Changing Leptonic Decays of Heavy Higgs Bosons
• Incorporating Nuisance Parameters in Likelihoods for Multisource Spectra
• New Signatures of Flavor Violating Higgs Couplings
• Model-independent search strategy for the lepton-flavor-violating heavy Higgs boson decay to $\tau \mu$ at the LHC

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• HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era
• Identification of hadronic tau lepton decays using a deep neural network
• Testing Exotic Scalars with HiggsBounds
• Revisiting Generalized Two Higgs Doublet Model in the Light of Muon Anomaly and Lepton Flavor Violating Decays at HL-LHC
• Generalized 2HDM with wrong-sign lepton Yukawa coupling, in light of $g_{\mu }-2$ and lepton flavor violation at the future LHC
• Collider Prospects for Muon $g-2$ in General Two Higgs Doublet Model
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• The Coming Decade of $h\to \tau \mu$ and $\tau \to \mu \gamma$ Interplay in $\tau$ Flavor Violation Search
• Searching for lepton flavor violating interactions at future electron-positron colliders
• Heterogeneous Graph Neural Network for Identifying Hadronically Decayed Tau Leptons at the High Luminosity LHC
• Hints of a new leptophilic Higgs sector?
• Flavor changing top decays to charm and Higgs with $\tau \tau$ at the LHC
• RGE effects on the LFV scale from meson decays
• Enhanced $B_q\to \ell {\ell }^{\prime }$ and $B\to (K,\pi )\ell {\ell }^{\prime }$ in light of $(g-2{)}_{\mu }$
• Light dark matter around 100 GeV from the inert doublet model
• Identification of tau leptons using a convolutional neural network with domain adaptation
• Leptophilic Portals to New Physics at Colliders