OMNIS, the observatory for multiflavor neutrinos from supernovae

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Neutrino, Muon, Pion, And Other Elementary Particle Detectors, Cosmic Ray Detectors, Neutrino, Muon, Pion, And Other Elementary Particles, Cosmic Rays, Neutrino Mass And Mixing, Supernovae

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OMNIS, the Observatory for Multiflavor NeutrInos from Supernovae, is being planned for siting in the Center for Applied Repository and Underground Research, CARUS, in New Mexico. OMNIS will consist of 14 kT of lead and iron which, when radiated by neutrinos from a supernova, will produce secondary neutrons. Detection of the neutrons then will signal the arrival of the supernova neutrinos. A supernova at the center of the Galaxy, will produce about 2000 events in OMNIS, mostly from neutral current interactions. OMNIS' combination of lead and iron modules gives it particular sensitivity to neutrino oscillations of the type νμ-->νe or ντ-->νe. Its intrinsic timing capability, better than 1 ms, gives it the capability to measure neutrino mass from the time-of-flight shifts in the luminosity curves of the neutrinos of different flavors to a few eV/c2. OMNIS will also be able to detect differences in the luminosity cutoffs of the different flavors in the event of the fairly prompt collapse to a black hole, which might allow diagnostics on that collapse process. .

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