A neutrino window to scalar leptoquarks: from low energy to colliders

Abstract

Leptoquarks are theorized particles of either scalar or vector nature that couple simultaneously to quarks and leptons. Motivated by recent measurements of coherent elastic neutrino-nucleus scattering, we consider the impact of scalar leptoquarks coupling to neutrinos on a few complementary processes, from low energy to colliders. In particular, we set competitive constraints on the typical mass and coupling of scalar leptoquarks by analyzing recent COHERENT data. We compare these constraints with bounds from atomic parity violation experiments, deep inelastic neutrino-nucleon scattering and LHC data. Our results highlight a strong complementarity between different facilities and demonstrate the compelling power of coherent elastic neutrino-nucleus scattering experiments to probe leptoquark masses in the MeV-GeV range. Finally, we also present prospects for improving current bounds with future upgrades of the COHERENT detectors and the planned European Spallation Source.

30 pages, 9 figures, 2 tables, improved constraints on LQ masses and couplings. Matches published version in PRD

References in corpus (65)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• B-physics anomalies: a guide to combined explanations
• Status of non-standard neutrino interactions
• $R_K$ and future $b\to s\ell \ell$ BSM opportunities
• New physics in the weak interaction of $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• Search for resonant and nonresonant new phenomena in high-mass dilepton final states at $\sqrt{s}=$ 13 TeV
• COHERENT constraints on nonstandard neutrino interactions
• The Leptoquark Hunter's Guide: Pair Production
• On the single leptoquark solutions to the $B$-physics anomalies
• Measurement of the Coherent Elastic Neutrino-Nucleus Scattering Cross Section on CsI by COHERENT
• Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Measurement of Coherent Elastic Neutrino-Nucleus Scattering from reactor antineutrinos
• Sensitivity of low energy neutrino experiments to physics beyond the standard model
• Cornering Scalar Leptoquarks at LHC
• Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector
• Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
• Physics implications of a combined analysis of COHERENT CsI and LAr data
• Correlating $h\to {\mu }^{+}{\mu }^{-}$ to the Anomalous Magnetic Moment of the Muon via Leptoquarks
• Probing neutrino transition magnetic moments with coherent elastic neutrino-nucleus scattering
• Constraints on light vector mediators through coherent elastic neutrino nucleus scattering data from COHERENT
• Global constraints on muon-neutrino non-standard interactions
• Future CEvNS experiments as probes of lepton unitarity and light-sterile neutrinos
• Novel constraints on neutrino physics beyond the standard model from the CONUS experiment
• Flavor-dependent radiative corrections in coherent elastic neutrino-nucleus scattering
• A Minimal Explanation of Flavour Anomalies: B-Meson Decays, Muon Magnetic Moment, and the Cabibbo Angle
• First-Generation New Physics in Simplified Models: From Low-Energy Parity Violation to the LHC
• Confirming $U(1{)}_{L_{\mu }-L_{\tau }}$ as a solution for $(g-2{)}_{\mu }$ with neutrinos
• First Dark Matter Search Results From Coherent CAPTAIN-Mills
• Low-energy probes of sterile neutrino transition magnetic moments
• The physics potential of a reactor neutrino experiment with Skipper CCDs: Measuring the weak mixing angle
• XENON1T signal from transition neutrino magnetic moments
• Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector
• Search for coherent elastic neutrino-nucleus scattering at a nuclear reactor with CONNIE 2019 data
• First results of the nuGeN experiment on coherent elastic neutrino-nucleus scattering
• Determining the nuclear neutron distribution from Coherent Elastic neutrino-Nucleus Scattering: current results and future prospects
• Leptoquarks and Matter Unification: Flavor Anomalies and the Muon $g-2$
• A Statistical Analysis of the COHERENT Data and Applications to New Physics
• Physics reach of a low threshold scintillating argon bubble chamber in coherent elastic neutrino-nucleus scattering reactor experiments
• Particle Physics at the European Spallation Source
• Exploring coherent elastic neutrino-nucleus scattering using reactor electron antineutrinos in the NEON experiment
• Nonstandard neutrino interactions at COHERENT, DUNE, T2HK and LHC
• Probing Active-Sterile Neutrino Transition Magnetic Moments with Photon Emission from CE$\nu$NS
• New insights into nuclear physics and weak mixing angle using electroweak probes
• Consequences of the Dresden-II reactor data for the weak mixing angle and new physics
• EFT analysis of New Physics at COHERENT
• CE$\nu$NS as a probe of flavored generalized neutrino interactions
• Nuclear neutron radius and weak mixing angle measurements from latest COHERENT CsI and atomic parity violation Cs data
• Explanations for anomalies of muon anomalous magnetic dipole moment, $b\to s\mu \bar{\mu }$ and radiative neutrino masses in a leptoquark model
• Scalar Leptoquarks, Baryon Number Violation and Pati-Salam Symmetry
• Physics implications of recent Dresden-II reactor data
• The RED-100 experiment
• The ABC of RPV: Classification of R-Parity Violating Signatures at the LHC for Small Couplings
• Constraints on general neutrino interactions with exotic fermion from neutrino-electron scattering experiments
• Constraining Non-Standard Interactions with Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
• Scalar leptoquark pair production at the LHC: precision predictions in the era of flavour anomalies
• Coherent elastic neutrino-nucleus scattering with the $\nu$BDX-DRIFT directional detector at next generation neutrino facilities
• Light dark matter, rare $B$ decays with missing energy in $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Constraints on leptoquarks from lepton-flavour-violating tau-lepton processes
• COHERENT production of a dark fermion
• Constraining scalar leptoquarks using COHERENT data
• Rock Neutron Backgrounds from FNAL Neutrino Beamlines in the $\nu$BDX-DRIFT Detector
• Loop effect with vector mediator in the coherent neutrino-nucleus scattering
• A $\nu$ window onto leptoquarks?

Cited by in corpus (3)

• Up-scattering production of a sterile fermion at DUNE: complementarity with spallation source and direct detection experiments
• Constraining low scale dark hypercharge symmetry at spallation, reactor and Dark Matter direct detection experiments
• Neutrino nonstandard interactions: Confronting COHERENT and LHC data