Collider imprint of vector-like leptons in light of anomalous magnetic moment and neutrino data

Abstract

We investigate the impact of incorporating vector-like leptons into the Standard Model, aiming to address longstanding puzzles related to the anomalous magnetic moments of the muon and electron while maintaining consistency with neutrino masses and mixings. We find that among the various representations of vector-like leptons permitted by the Standard Model gauge symmetry, only weak doublets and singlets offer satisfactory solutions, all associated with a significantly constrained parameter space. Our analysis delves into the associated parameter space, identifying representative benchmark scenarios suitable for collider studies. These setups yield a distinctive six-lepton signature whose associated signals can easily be distinguished from the Standard Model background, providing a clear signal indicative of new physics models featuring vector-like leptons. Our work hence sheds light on the potential implications of vector-like leptons in resolving discrepancies inherent to the Standard Model, while also offering insights into experimental avenues for further exploration.

9 figures, 6 tables

References in corpus (40)

• Array Programming with NumPy
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• The anomalous magnetic moment of the muon in the Standard Model
• Measurement of the fine-structure constant as a test of the Standard Model
• Leading hadronic contribution to the muon magnetic moment from lattice QCD
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
• Measurement of the Electron Magnetic Moment
• QCD radiation in the production of heavy colored particles at the LHC
• Designing and recasting LHC analyses with MadAnalysis 5
• Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD
• Lattice calculation of the short and intermediate time-distance hadronic vacuum polarization contributions to the muon magnetic moment using twisted-mass fermions
• A measurement of the Higgs boson mass in the diphoton decay channel
• Evidence for Higgs boson decay to a pair of muons
• A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector
• Anomalous Magnetic Moments from Asymptotic Safety
• Global Electroweak Fit and Vector-Like Leptons in Light of the Cabibbo Angle Anomaly
• Muon $g-2$ and $B$-anomalies from Dark Matter
• Light-quark connected intermediate-window contributions to the muon $g-2$ hadronic vacuum polarization from lattice QCD
• Explaining $g-2$ anomalies in two Higgs doublet model with vector-like leptons
• Simplified fast detector simulation in MadAnalysis 5
• Vector-like Leptons: Muon g-2 Anomaly, Lepton Flavor Violation, Higgs Decays, and Lepton Non-Universality
• Model Building from Asymptotic Safety with Higgs and Flavor Portals
• Multi-lepton signatures of vector-like leptons with flavor
• A Model of Vector-like Leptons for the Muon $g-2$ and the $W$ Boson Mass
• $(\mathbf{g}-2{)}_{\mathbf{e},\mathbf{\mu }}$ in an extended inverse type-III seesaw
• Inclusive nonresonant multilepton probes of new phenomena at $\sqrt{s}=$ 13 TeV
• Vector-Like Leptons and Inert Scalar Triplet: Lepton Flavor Violation, $g-2$ and Collider Searches
• Combined measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ decay channels with the ATLAS detector using $\sqrt{s}$ = 7, 8 and 13 TeV $pp$ collision data
• Muon Anomalous Magnetic Moment in Two Higgs Doublet Models with Vector-Like Leptons
• A bridge to new physics: proposing new -- and reviving old -- explanations of $a_{\mu }$
• Search for third-generation vector-like leptons in $pp$ collisions at $\sqrt{s}=13\text{TeV}$ with the ATLAS detector
• Magnetic Moments of Leptons, Charged Lepton Flavor Violations and Dark Matter Phenomenology of a Minimal Radiative Dirac Neutrino Mass Model
• $W$ mass in a model with vector-like leptons and $U(1{)}^{\prime }$
• The CDF W-mass, muon g-2, and dark matter in a $U(1{)}_{L_{\mu }-L_{\tau }}$ model with vector-like leptons
• Search for excited leptons in e+e- collisions at sqrt{s}=189-209 GeV
• Shedding light on dark matter with recent muon $(g-2)$ and Higgs exotic decay measurements
• The Low-Scale Seesaw Solution to the $M_W$ and $(g-2{)}_{\mu }$ Anomalies
• Investigation of $(g-2{)}_{\mu }$ anomaly in the $\mu$-specific 2HDM with Vector like leptons and the phenomenological implications

Cited by in corpus (1)

• Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector