Explaining lepton-flavor non-universality and self-interacting dark matter with $L_{\mu }-L_{\tau }$

Abstract

Experimental hints for lepton-flavor universality violation in the muon's magnetic moment as well as neutral- and charged-current $B$-meson decays require Standard-Model extensions by particles such as leptoquarks that generically lead to unacceptably fast rates of charged lepton flavor violation and proton decay. We propose a model based on a gauged $U(1{)}_{L_{\mu }-L_{\tau }}$ that eliminates all these unwanted decays by symmetry rather than finetuning and efficiently explains $(g-2{)}_{\mu }$, $R_{K^{(\ast )}}$, $R_{D^{(\ast )}}$, and neutrino masses. The $U(1{)}_{L_{\mu }-L_{\tau }}$ furthermore acts as a stabilizing symmetry for dark matter and the light $Z^{\prime }$ gauge boson mediates velocity-dependent dark-matter self-interactions that resolve the small-scale structure problems. Lastly, even the Hubble tension can be ameliorated via the light $Z^{\prime }$ contribution to the relativistic degrees of freedom.

arXiv comment8 pages and references, 6 figures; fixed pdf issues and added references, matches EPJC version

References in corpus (97)

• Particle Dark Matter: Evidence, Candidates and Constraints
• In the Realm of the Hubble tension $-$ a Review of Solutions
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• The anomalous magnetic moment of the muon in the Standard Model
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• Precision Electroweak Measurements on the Z Resonance
• Dark Matter Self-interactions and Small Scale Structure
• The Waning of the WIMP? A Review of Models, Searches, and Constraints
• Leading hadronic contribution to the muon magnetic moment from lattice QCD
• 2020 Global reassessment of the neutrino oscillation picture
• Physics of leptoquarks in precision experiments and at particle colliders
• Dark Matter Halos as Particle Colliders: A Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• New physics in light of the $H_0$ tension: an alternative view
• Neutrino-less Double Beta Decay and Particle Physics
• Beyond Collisionless Dark Matter: Particle Physics Dynamics for Dark Matter Halo Structure
• Neutrino Trident Production: A Powerful Probe of New Physics with Neutrino Beams
• Theory of Neutrinos: A White Paper
• Unveiling $\nu$ secrets with cosmological data: neutrino masses and mass hierarchy
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Dressing L_mu - L_tau in Color
• On the Hubble constant tension in the SNe Ia Pantheon sample
• Halo Shape and Relic Density Exclusions of Sommerfeld-Enhanced Dark Matter Explanations of Cosmic Ray Excesses
• Patterns of New Physics in $b\to s{\ell }^{+}{\ell }^{-}$ transitions in the light of recent data
• Addressing the LHC flavour anomalies with horizontal gauge symmetries
• Angular Distributions of B -> K ll Decays
• Simultaneous Explanation of $R(D^{(\ast )})$ and $b\to s{\mu }^{+}{\mu }^{-}$: The Last Scalar Leptoquarks Standing
• Confronting lepton flavor universality violation in B decays with high-$p_T$ tau lepton searches at LHC
• $B$- and $D$-meson leptonic decay constants from four-flavor lattice QCD
• Dark Matter Self-Interactions and Light Force Carriers
• Sommerfeld Enhancements for Thermal Relic Dark Matter
• The lifetime of the $B_c^{-}$ meson and the anomalies in $B\to D^{(\ast )}\tau \nu$
• Closing the window on single leptoquark solutions to the $B$-physics anomalies
• B-decay discrepancies after Moriond 2019
• Cosmology With a Very Light $L_{\mu }-L_{\tau }$ Gauge Boson
• On the evolution of the Hubble constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: a feasibility study for GRB-cosmology in 2030
• Constraints on the sum of the neutrino masses in dynamical dark energy models with $w(z)\ge -1$ are tighter than those obtained in $\Lambda$CDM
• Wilson: a Python package for the running and matching of Wilson coefficients above and below the electroweak scale
• New physics explanations of $a_{\mu }$ in light of the FNAL muon $g-2$ measurement
• Muon Anomalous $g-2$ and Gauged $L_{\mu }-L_{\tau }$ Models
• Gauged L_mu - L_tau Symmetry at the Electroweak Scale
• High-$p_T$ dilepton tails and flavour physics
• Explaining Dark Matter and $B$ Decay Anomalies with an $L_{\mu }-L_{\tau }$ Model
• Resonant Dark Forces and Small Scale Structure
• Dark Kinetic Heating of Neutron Stars and An Infrared Window On WIMPs, SIMPs, and Pure Higgsinos
• Renormalization-group evolution of new physics contributions to (semi)leptonic meson decays
• Scalar contributions to $b\to c(u)\tau \nu$ transitions
• The muon anomalous magnetic moment and a new light gauge boson
• The Leptoquark Hunter's Guide: Pair Production
• Coherent Propagation of PeV Neutrinos and the Dip in the Neutrino Spectrum at IceCube
• Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
• On the single leptoquark solutions to the $B$-physics anomalies
• Strong constraints on self-interacting dark matter with light mediators
• Minimally flavored colored scalar in $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$ and the mass matrices constraints
• Revisiting the one leptoquark solution to the $R(D^{(\ast )})$ anomalies and its phenomenological implications
• Non-Standard Interactions in Radiative Neutrino Mass Models
• Vanishing Minors in the Neutrino Mass Matrix from Abelian Gauge Symmetries
• M${}^3$: A New Muon Missing Momentum Experiment to Probe $(g-2{)}_{\mu }$ and Dark Matter at Fermilab
• Muon g-2 and searches for a new leptophobic sub-GeV dark boson in a missing-energy experiment at CERN
• Neutrino Tridents at DUNE
• Zeros of the inverted neutrino mass matrix
• Velocity-dependent Self-interacting Dark Matter from Groups and Clusters of Galaxies
• Self-interacting dark matter and muon $g-2$ in a gauged U$(1{)}_{L_{\mu }-L_{\tau }}$ model
• Phenomenology of $U(1{)}_{L_{\mu }-L_{\tau }}$ charged dark matter at PAMELA/FERMI and colliders
• Constraints on scalar leptoquarks from lepton and kaon physics
• Anomalous Magnetic Moments from Asymptotic Safety
• The Leptoquark Hunter's Guide: Large Coupling
• Leptoquark toolbox for precision collider studies
• Zero minors of the neutrino mass matrix
• Probing Muonic Forces and Dark Matter at Kaon Factories
• Dark matter interactions with muons in neutron stars
• Neutrino Trident Scattering at Near Detectors
• Lepton-quark collisions at the Large Hadron Collider
• Unified Framework for $B$-Anomalies, Muon $g-2$, and Neutrino Masses
• A Model of Muon Anomalies
• Minimal Gauged U(1)${}_{L_{\alpha }-L_{\beta }}$ Models Driven into a Corner
• Probing low energy scalar leptoquarks by the leptonic $W$ and $Z$ couplings
• Model Building from Asymptotic Safety with Higgs and Flavor Portals
• Lepton Flavor Violation and Dilepton Tails at the LHC
• Proton decay into charged leptons
• The Semi-Classical Regime for Dark Matter Self-Interactions
• Inelastic extra $U(1)$ charged scalar dark matter
• Mounting Evidence for the Violation of Lepton Flavor Universality
• Exploring Leptophilic Dark Matter with NA64-$\mu$
• Correlating Tauonic B Decays to the Neutron EDM via a Scalar Leptoquark
• Indirect and monojet constraints on scalar leptoquarks
• The Simplest and Most Predictive Model of Muon $g-2$ and Thermal Dark Matter
• Indirect searches of dark matter via polynomial spectral features
• Maximally self-interacting dark matter: models and predictions
• Minimal self-interacting dark matter models with light mediator
• Flavor-Nonuniversal Dark Gauge Bosons and the Muon g-2
• Search for U(1)${}_{L_{\mu }-L_{\tau }}$ charged Dark Matter with neutrino telescope
• Anomalies and accidental symmetries: charging the scalar leptoquark under $L_{\mu }$-$L_{\tau }$
• Search for muon-philic new light gauge boson at Belle II
• $U(1{)}_{L_{\mu }-L_{\tau }}$ for Light Dark Matter, $g_{\mu }-2$, the $511$ keV excess and the Hubble Tension
• Flavour alignment of New Physics in light of the $(g-2{)}_{\mu }$ anomaly
• Robust Limits from Upcoming Neutrino Telescopes and Implications on Minimal Dark Matter Models