Constraints on Nucleon Decay via "Invisible" Modes from the Sudbury Neutrino Observatory

Details Constraints on Nucleon Decay via "Invisible" Modes from the Sudbury Neutrino Observatory Constraints on Nucleon Decay via "Invisible" Modes from the Sudbury Neutrino Observatory

2003-10-14

arxiv.org/abs/hep-ex/0310030v2

Phys.Rev.Lett.92:102004,2004

Physics

High Energy Physics

High Energy Physics - Experiment

Update includes missing efficiency factor (limits change by factor of 2) Submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.92.102004

Data from the Sudbury Neutrino Observatory have been used to constrain the lifetime for nucleon decay to ``invisible'' modes, such as n -> 3 nu. The analysis was based on a search for gamma-rays from the de-excitation of the residual nucleus that would result from the disappearance of either a proton or neutron from O16. A limit of tau_inv > 2 x 10^{29} years is obtained at 90% confidence for either neutron or proton decay modes. This is about an order of magnitude more stringent than previous constraints on invisible proton decay modes and 400 times more stringent than similar neutron modes.

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