Gravitational Wave Bursts from Brane World Neutrino Oscillations During Supernova Collapse
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In braneworld-like solutions of the hierarchy problem gravitons and right-handed (sterile) neutrinos are in principle the unique non-standard model fields allowed to propagate into the bulk, thus their coupling is naturally expected. Since active- to-sterile neutrino oscillations can take place during the core bounce of a supernova collapse, then gravitational waves must be produced over the oscillation length through anisotropic neutrino flow. Because the oscillation feeds mass-energy up into (or takes it out of) the target species, the large mass-squared difference between species makes a huge amount of energy to be given off as gravity waves, which is larger than from neutrino convection and cooling, or quadrupole moments of neutron star matter. The strengthness of these bursts would turn them the more sure supernova gravitational- wave signal detectable by interferometers, for distances out to the VIRGO cluster of galaxies.
KeywordsNeutrino Oscillation Sterile Neutrino Supernova Explosion Brane World VIRGO Cluster
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