Searching for light long-lived neutralinos at Super-Kamiokande

Abstract

Light neutralinos could be copiously produced from the decays of mesons generated in cosmic-ray air showers. These neutralinos can be long-lived particles in the context of R-parity violating (RPV) supersymmetric models, implying that they could be capable of reaching the surface of the earth and decay within the instrumental volume of large neutrino detectors. In this letter, we use atmospheric neutrino data from the Super-Kamiokande experiment to derive novel constraints for the RPV couplings involved in the production of long-lived light neutralinos from the decays of charged $D$-mesons and kaons. Our results highlight the potential of neutrino detectors to search for long-lived particles, by demonstrating that it is possible to explore regions of parameter space that are not yet constrained by any fixed-target nor collider experiments.

Version accepted for publication in PRD. 11 pages, 7 figures

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Cited by in corpus (10)

• Long-lived neutral fermions at the DUNE near detector
• Searching for a Single Photon from Lightest Neutralino Decays in R-parity-violating Supersymmetry at FASER
• Probing $R$-parity violation in $B$-meson decays to a baryon and a light neutralino
• Atmospheric axion-like particles at Super-Kamiokande
• Neutrinoless Double Beta Decay via Light Neutralinos in R-Parity Violating Supersymmetry
• Recasting Bounds on Long-lived Heavy Neutral Leptons in Terms of a Light Supersymmetric R-parity Violating Neutralino
• Monopoles From an Atmospheric Fixed Target Experiment
• Searching for light neutralinos with a displaced vertex at the LHC
• Testing Heavy Neutral Leptons in Cosmic Ray Beam Dump experiments
• Hadrophilic Light Dark Matter from the Atmosphere