Combined explanation of $W$-mass, muon $g-2$, $R_{K^{(\ast )}}$ and $R_{D^{(\ast )}}$ anomalies in a singlet-triplet scalar leptoquark model

Abstract

In addition to the long-standing anomalies seen in the muon $g-2$, $R_{K^{(\ast )}}$, and $R_{D^{(\ast )}}$ observables by various independent experiments, the CDF Collaboration has found another significant one in the $W$-boson mass. These anomalies might be intertwined at a fundamental level and have a single new-physics explanation. In this paper, we present a simultaneous solution to these anomalies with two scalar leptoquarks of roughly equal mass -- one weak-singlet $S_1$ and the other a weak-triplet $S_3$ -- which mix through a Higgs portal. The solution has only a few new couplings and TeV-scale leptoquarks, making the solution testable at the LHC. We put a lower and upper bound on the leptoquark masses in this setup from the current LHC data and the assumption that all new couplings are within the perturbative limit.

Nine pages, three figures, and one table. Improved analysis with LHC and other relevant bounds

References in corpus (31)

• PYTHIA 6.4 Physics and Manual
• 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
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
• B-physics anomalies: a guide to combined explanations
• Test of lepton universality in beauty-quark decays
• Measurement of the branching ratio of ${\bar{B}}^0\to D^{\ast +}{\tau }^{-}{\bar{\nu }}_{\tau }$ relative to ${\bar{B}}^0\to D^{\ast +}{\ell }^{-}{\bar{\nu }}_{\ell }$ decays with a semileptonic tagging method
• Measurement of the $\tau$ lepton polarization and $R(D^{\ast })$ in the decay $\bar{B}\to D^{\ast }{\tau }^{-}{\bar{\nu }}_{\tau }$ with one-prong hadronic $\tau$ decays at Belle
• Search for resonant and nonresonant new phenomena in high-mass dilepton final states at $\sqrt{s}=$ 13 TeV
• Leptoquark Flavor Patterns & B Decay Anomalies
• Light-by-light scattering sum rules in light of new data
• Electromagnetic and strong isospin-breaking corrections to the muon $g-2$ from Lattice QCD+QED
• Constraint on the branching ratio of B_c \to tau nu from LEP1 and consequences for R(D(*)) anomaly
• Constraints on new physics from the quark mixing unitarity triangle
• Consequences of chirally enhanced explanations of $(g-2{)}_{\mu }$ for $h\to \mu \mu$ and $Z\to \mu \mu$
• Lepton number violation at the LHC with leptoquark and diquark
• A Model of Muon Anomalies
• Combined explanations of $(g-2{)}_{\mu }$, $R_{D^{(\ast )}}$, $R_{K^{(\ast )}}$ anomalies in a two-loop radiative neutrino mass model
• Effective Theory Approach to New Physics with Flavour: General Framework and a Leptoquark Example
• Iso-doublet Vector Leptoquark solution to the Muon $g-2$, $R_{K,K^{\ast }}$, $R_{D,D^{\ast }}$, and $W$-mass Anomalies
• Precise limits on the charge-$2/3$ $U_1$ vector leptoquark
• Leptoquark Option for $B$-meson Anomalies and Leptonic Signatures
• Phenomenology of $b\to c\tau \bar{\nu }$ decays in a scalar leptoquark model
• Constraining flavour patterns of scalar leptoquarks in the effective field theory
• Improving third-generation leptoquark searches with combined signals and boosted top
• The Forward-Backward Asymmetry in $B\to D^{\ast }\ell \nu$: One more hint for Scalar Leptoquarks?
• From B-meson anomalies to Kaon physics with scalar leptoquarks
• New physics behind the new muon $g$-2 puzzle?
• A model for the Singlet-Triplet Leptoquarks

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• Right-handed neutrino pair production via second-generation leptoquarks
• Fresh look at the LHC limits on scalar leptoquarks
• $Z$ boson mixing and the mass of the $W$ boson
• Minimal model for the $W$-boson mass, $(g-2{)}_{\mu }$, $h\to {\mu }^{+}{\mu }^{-}$ and quark-mixing-matrix unitarity
• The $W\ell \nu$-vertex corrections to W-boson mass in the R-parity violating MSSM
• Collider Signatures of a Scalar Leptoquark and Vector-like Lepton in Light of Muon Anomaly
• The Muon Magnetic Moment and Physics Beyond the Standard Model
• CDF-II W boson mass in the Dirac Scotogenic model
• The $\rho$ parameter and the CDF W-mass anomaly: observations on the role of scalar triplets
• Minimal Zee model for lepton $g-2$ and $W$-mass shifts
• Gravitational wave signals from leptoquark-induced first order electroweak phase transitions
• Direct production of SM-singlet scalars at the muon collider
• Vector leptoquark contributions to lepton dipole moments
• Revisiting the Scalar Leptoquark ($S_1$) Model with the Updated Leptonic Constraints
• $E_6$ Models in Light of Precision $M_W$ Measurements
• W-boson mass anomaly as a manifestation of spontaneously broken additional SU(2) global symmetry on a new fundamental scale
• Indian Contributions to LHC Theory
• $W-$mass and Muon $g-2$ in Inert 2HDM Extended by Singlet Complex Scalar
• Rare decay $t\to c\gamma \gamma$ via scalar leptoquark doublets
• Accommodating the CDF W-boson Mass Measurement in the Beautiful Mirror Model