Muon $(g-2)$ and XENON1T Excess with Boosted Dark Matter in $L_{\mu }-L_{\tau }$ Model

Abstract

Motivated by the growing evidence for lepton flavour universality violation after the first results from Fermilab's muon $(g-2)$ measurement, we revisit one of the most widely studied anomaly free extensions of the standard model namely, gauged $L_{\mu }-L_{\tau }$ model, known to be providing a natural explanation for muon $(g-2)$. We also incorporate the presence of dark matter (DM) in this model in order to explain the recently reported electron recoil excess by the XENON1T collaboration. We show that the same neutral gauge boson responsible for generating the required muon $(g-2)$ can also mediate interactions between electron and dark fermions boosted by dark matter annihilation. The required DM annihilation rate into dark fermion require a hybrid setup of thermal and non-thermal mechanisms to generate DM relic density. The tightly constrained parameter space from all requirements remain sensitive to ongoing and near future experiments, keeping the scenario very predictive.

arXiv comment9 pages, 6 figures, References Added, Accepted for publication in Phys. Lett. B

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• TeV Scale Resonant Leptogenesis with $L_{\mu }-L_{\tau }$ Gauge Symmetry in the Light of Muon $(g-2)$
• Scotogenic $U(1{)}_{L_{\mu }-L_{\tau }}$ origin of $(g-2{)}_{\mu }$, W-mass anomaly and 95 GeV excess
• Self-interacting freeze-in dark matter in a singlet doublet scenario
• Self-interacting Dark Matter via Right Handed Neutrino Portal
• High-energy cosmic neutrinos as a probe of the vector mediator scenario in light of the muon $g-2$ anomaly and Hubble tension
• Neutrino Masses, Leptonic Flavor Mixing and Muon $(g-2)$ in the Seesaw Model with the $U(1{)}_{L_{\mu }^{}-L_{\tau }^{}}^{}$ Gauge Symmetry
• General Kinetic Mixing in Gauged $U(1{)}_{L_{\mu }-L_{\tau }}$ Model for Muon $g-2$ and Dark Matter
• A Robust Description of Hadronic Decays in Light Vector Mediator Models
• Probing light vector mediators with coherent scattering at future facilities
• Boosted Self-Interacting Dark Matter and XENON1T Excess
• Light dark matter, rare $B$ decays with missing energy in $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Probing the $L_{\mu }$-$L_{\tau }$ Gauge Boson at the MUonE Experiment
• Shedding Flavor on Dark via Freeze-in: $U(1{)}_{B-3L_i}$ Gauged Extensions
• Light vector dark matter with scalar mediator and muon g-2 anomaly
• General Remarks on the One-loop Contributions to the Muon Anomalous Magnetic Moment
• The Muon Magnetic Moment and Physics Beyond the Standard Model
• Explorations of pseudo-Dirac dark matter having keV splittings and interacting via transition electric and magnetic dipole moments
• Two-loop radiative seesaw, muon $g-2$, and $\tau$-lepton-flavor violation with DM constraints
• Anomalous gauge couplings vis-$\grave{a}$-vis $(g-2{)}_{\mu }$ and flavor observables
• Anomalous Magnetic Moment and Higgs Coupling of the Muon in a Sequential U(1) Gauge Model with Dark Matter
• Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC
• FIMP DM in the Extended Hyperchargeless Higgs Triplet Model
• A Direct Detection Search for Hidden Sector New Particles in the 3-60 MeV Mass Range
• Neutrino mass and charged lepton flavor violation in an extended left-right symmetric model
• Thermal Leptophilic Light Vector Dark Matter with Spinor Mediator and Muon (g-2) Anomaly