Light Hidden Fermionic Dark Matter in Neutrino Experiments

Details Light Hidden Fermionic Dark Matter in Neutrino Experiments Light Hidden Fermionic Dark Matter in Neutrino Experiments

2009-10-16

arxiv.org/abs/0910.3177v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5, pages, 1 figure. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726

Scientific paper

We consider, in a model-independent framework, the potential for observing dark matter in neutrino detectors through the interaction $\bar{f} p \to e^+ n$, where $f$ is a dark fermion. Operators of dimension six or less are considered, and constraints are placed on their coefficients using the dark matter lifetime and its decays to states which include $\gamma$ rays or $e^+e^-$ pairs. After these constraints are applied, there remains one operator which can possibly contribute to $\bar{f} p \to e^+ n$ in neutrino detectors at an observable level. We then consider the results from the Super-Kamiokande relic supernova neutrino search and find that Super-K can probe the new physics scale of this interaction up to $O(100\mbox{ TeV})$.

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