B anomalies and dark matter: a complex connection

Abstract

We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in $B\to K^{(\ast )}{l}^{+}{l}^{-}$ decays at LHCb, while providing a viable candidate for dark matter. The model incorporates two new scalar fields and a Majorana fermion that induce one-loop contributions to $B$ meson decays. We show that agreement with observational data requires the new couplings to be complex and that the Majorana fermion can reproduce the observed dark matter relic density. This combination of cosmological and flavour constraints sets an upper limit on the dark matter and mediator masses. We have studied LHC dijet and dilepton searches, finding that they rule out large regions of parameter space by setting lower bounds on the dark matter and mediator masses. In particular, dilepton bounds are much more constraining in a future high-luminosity phase. Finally, we have computed the scattering cross section of dark matter off nuclei and compared it to the sensitivity of current and future direct detection experiments, showing that parts of the parameter space could be accessible in the future to multi-ton experiments. Future collider and direct DM searches complement each other to probe large areas of the parameter space of this model.

27 pages, 8 figures, 2 tables

References in corpus (66)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
• Implication of neutrino backgrounds on the reach of next generation dark matter direct detection experiments
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
• The Effective Field Theory of Dark Matter Direct Detection
• More Model-Independent Analysis of b->s Processes
• One Leptoquark to Rule Them All: A Minimal Explanation for $R_{D^{(\ast )}}$, $R_K$ and $(g-2{)}_{\mu }$
• On the Standard Model predictions for $R_K$ and $R_{K^{\ast }}$
• Global analysis of $b\to s\ell \ell$ anomalies
• Patterns of New Physics in $b\to s{\ell }^{+}{\ell }^{-}$ transitions in the light of recent data
• Flavour anomalies after the $R_{K^{\ast }}$ measurement
• Model-independent WIMP Scattering Responses and Event Rates: A Mathematica Package for Experimental Analysis
• Non-relativistic effective theory of dark matter direct detection
• Flux of Atmospheric Neutrinos
• Interpreting Hints for Lepton Flavor Universality Violation
• CheckMATE 2: From the model to the limit
• Closing the window on single leptoquark solutions to the $B$-physics anomalies
• Solar models with accretion. I. Application to the solar abundance problem
• Towards the discovery of new physics with lepton-universality ratios of $b\to s\ell \ell$ decays
• The Diffuse Supernova Neutrino Background is detectable in Super-Kamiokande
• Explaining Dark Matter and $B$ Decay Anomalies with an $L_{\mu }-L_{\tau }$ Model
• GeV-Scale Thermal WIMPs: Not Even Slightly Dead
• $R_K$ and $R_{K^{\ast }}$ beyond the Standard Model
• On the anomalies in the latest LHCb data
• An explicit Z'-boson explanation of the B->K*mu+mu- anomaly
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$ after the Measurement of $R_{K^{\ast }}$
• A Dark Matter Relic From Muon Anomalies
• Left-handed Z' and Z FCNC quark couplings facing new b -> s mu^+ mu^- data
• Anapole Dark Matter
• Gluon contribution to the dark matter direct detection
• Effective Theories for Dark Matter Nucleon Scattering
• Dark matter with $t$-channel mediator: a simple step beyond contact interaction
• One constraint to kill them all?
• Loopy Constraints on Leptophilic Dark Matter and Internal Bremsstrahlung
• On lepton non-universality in exclusive $b\to s\ell \ell$ decays
• Loop effects of heavy new scalars and fermions in $b\to s{\mu }^{+}{\mu }^{-}$
• Leptophilic Effective WIMPs
• Linear flavour violation and anomalies in B physics
• On the Effect of Nuclear Response Functions in Dark Matter Direct Detection
• $B$ decay anomalies and dark matter from vectorlike confinement
• Flavourful $Z^{\prime }$ portal for vector-like neutrino Dark Matter and $R_{K^{(\ast )}}$
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$: Distinguishing Models through CP-Violating Effects
• Flavor anomalies and dark matter in SUSY with an extra U(1)
• Dark matter contribution to $b\to s{\mu }^{+}{\mu }^{-}$ anomaly in local $U(1{)}_{L_{\mu }-L_{\tau }}$ model
• Explaining $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ anomaly by radiatively induced coupling in $U(1{)}_{\mu -\tau }$ gauge symmetry
• Dirac dark matter with a charged mediator: a comprehensive one-loop analysis of the direct detection phenomenology
• Anomaly-Free Models for Flavour Anomalies
• Impact of the $b\to sll$ anomalies on dark matter physics
• Hidden sector explanation of $B$-decay and cosmic ray anomalies
• Dirac dark matter and $b\to s{\ell }^{+}{\ell }^{-}$ with $\mathrm{U}(1)$ gauge symmetry
• A complete Lorentz-to-Galileo dictionary for direct Dark Matter detection
• $R(K^{(\ast )})$ from dark matter exchange
• Lepto-Quark Portal Dark Matter
• Implications of hidden gauged $U(1)$ model for $B$ anomalies
• Reconciling $B$-decay anomalies with neutrino masses, dark matter and constraints from flavour violation
• Casting a Wide Signal Net with Future Direct Dark Matter Detection Experiments
• Short-distance matrix elements for $D^0$-meson mixing for $N_f=2+1$ lattice QCD
• Lepton non-universality in $B$ decays and fermion mass structure
• Dark matter for $b\to s{\mu }^{+}{\mu }^{-}$ anomaly in a gauged $U(1{)}_X$ model
• Quark-flavored scalar dark matter
• Non-Abelian family symmetries as portals to dark matter
• Right-handed Neutrino Dark Matter in a U(1) Extension of the Standard Model
• Anomalies in $b\to s$ transitions and dark matter

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• Isospin-violating dark matter at liquid noble detectors: new constraints, future projections, and an exploration of target complementarity
• Fermionic Singlet Dark Matter in One-Loop Solutions to the $R_K$ Anomaly: A Systematic Study
• TeV-scale vector leptoquark from Pati-Salam unification with vectorlike families
• Perturbative unitarity constraints on generic Yukawa interactions
• Imprints of flavor anomalies on neutrino oscillations through dark matter halo