Sensitivity potential to a light flavor-changing scalar boson with DUNE and NA64$\mu$

Abstract

In this work, we report on the sensitivity potential of complementary muon-on-target experiments to new physics using a scalar boson benchmark model associated with charged lepton flavor violation. The NA64$\mu$ experiment at CERN uses a 160-GeV energy muon beam with an active target to search for excess events with missing energy and momentum as a probe of new physics. At the same time, the proton beam at Fermilab, which is used to produce the neutrino beam for the Deep Underground Neutrino Experiment (DUNE) will also produce a high-intensity muon beam dumped in an absorber. Combined with the liquid Argon Near Detector, the system could be used to search for similar scalar boson particles with a lower energy but higher intensity beam. We find that both NA64$\mu$ and DUNE could cover new, unexplored parts of the parameter space of the same benchmark model, providing a complementary way to search for new physics.

References in corpus (25)

• The anomalous magnetic moment of the muon in the Standard Model
• The GENIE Neutrino Monte Carlo Generator
• Leading hadronic contribution to the muon magnetic moment from lattice QCD
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• New Fixed-Target Experiments to Search for Dark Gauge Forces
• FeynCalc 9.3: New features and improvements
• Physics Potential of a Long Baseline Neutrino Oscillation Experiment Using J-PARC Neutrino Beam and Hyper-Kamiokande
• The Search for Feebly-Interacting Particles
• Muon Beam Experiments to Probe the Dark Sector
• Combined search for light dark matter with electron and muon beams at NA64
• Probing millicharged particles with NA64 experiment at CERN
• Fully Geant4 compatible package for the simulation of Dark Matter in fixed target experiments
• Searching for muonic forces with the ATLAS detector
• Deep inelastic $e-\tau$ and $\mu -\tau$ conversion in the NA64 experiment at the CERN SPS
• New bounds on lepton flavor violating decays of vector mesons and the Z0 boson
• Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino Beam
• Lepton flavor violating decays of vector mesons
• Scalar meson mediated nuclear mu-e conversion
• Effective Lagrangian approach to nuclear mu-e conversion and the role of vector mesons
• BSM Targets at a "Target-less DUNE"
• Leptonic scalar portal: Origin of muon $g-2$ anomaly and dark matter?
• Limits on Lepton Flavor Violation from μ-e-conversion
• SHADOWS (Search for Hidden And Dark Objects With the SPS)
• Bounds on lepton flavor violating physics and decays of neutral mesons from $\tau (\mu )\to 3\ell ,\ell \gamma \gamma$-decays
• Flavor-changing light bosons with accidental longevity

Cited by in corpus (3)

• Lepton-Flavor-Violating ALP Signals with TeV-Scale Muon Beams
• Neutron stars can shine a light on elusive lepton-flavor-violating dark matter
• Muon Beam Dump Experiments probe five-dimensional nature of $U(1{)}_{L_{\mu }-L_{\tau }}$