Belle II could detect long-lived bino neutralinos produced in B-meson decays, with a new partial-reconstruction method sensitive to RPV couplings far beyond existing bounds.
Light Relic Neutralinos
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abstract
The relic abundance and the scalar cross-section off nucleon for light neutralinos (of mass below about 45 GeV) are evaluated in an effective MSSM model without GUT-inspired relations among gaugino masses. It is shown that these neutralinos may provide a sizeable contribution to the matter density in the Universe and produce measurable effects in WIMP direct detection experiments. These properties are elucidated in terms of simple analytical arguments.
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Searching for long-lived light neutralinos from $B$-meson decays with baryonic R-parity violation at Belle II
Belle II could detect long-lived bino neutralinos produced in B-meson decays, with a new partial-reconstruction method sensitive to RPV couplings far beyond existing bounds.