ANUBIS offers the highest projected sensitivity for detecting single-photon signatures from long-lived neutralinos at the LHC among several remote detector proposals, based on six benchmark scenarios.
Mass Bounds on a Very Light Neutralino
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abstract
Within the Minimal Supersymmetric Standard Model (MSSM) we systematically investigate the bounds on the mass of the lightest neutralino. We allow for non-universal gaugino masses and thus even consider massless neutralinos, while assuming in general that R-parity is conserved. Our main focus are laboratory constraints. We consider collider data, precision observables, and also rare meson decays to very light neutralinos. We then discuss the astrophysical and cosmological implications. We find that a massless neutralino is allowed by all existing experimental data and astrophysical and cosmological observations.
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The Single Photon Signature of a Light Long-lived Neutralino at Remote Detectors at the LHC
ANUBIS offers the highest projected sensitivity for detecting single-photon signatures from long-lived neutralinos at the LHC among several remote detector proposals, based on six benchmark scenarios.