Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001neph.conf..192b&link_type=abstract
NEUTRINO PHYSICS Its Impact on Particle Physics, Astrophysics and Cosmology. Proceedings of the Carolina Symposium on Neutrino P
Astronomy and Astrophysics
Astrophysics
Scientific paper
OMNIS, the Observatory for Multiflavor NeutrInos from Supernovae, will consist of 14 kT of lead and iron which, when irradiated by neutrinos from a supernova, will produce secondary neutrons which will then be detected. A supernova at the center of the Galaxy will produce about 2000 events in OMNIS, mostly from neutral current interactions, creating an unprecedented data base from which to understand the processes that affect and govern stellar collapse. OMNIS' lead modules give it particular sensitivity to neutrino oscillations of the type νμ → νe or ντ → νe. Its intrinsic timing capability, better than 0.1 ms, might allow it to measure neutrino mass from the time-of-flight shifts in the luminosity curves of the neutrinos of different flavors to 20-30 eV/c2 . In the event of collapse to a black hole, OMNIS may be able to determine the mechanism that caused the collapse, measure the stellar geography, and determine neutrino masses to a few eV/c2 from the differences in the luminosities of the neutrinos of different flavors.
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