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Neutrino Intensity Interferometry: Measuring Protoneutron Star Radii During Core-Collapse Supernovae
Warren P Wright1, James P Kneller1
1Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA.
Abstract:
Intensity interferometry is a technique that has been used to measure the size of sources ranging from the quark-gluon plasma formed in heavy ion collisions to the radii of stars. We investigate using the same technique to measure protoneutron star (PNS) radii with the neutrino signal received from a core-collapse supernovae. Using a full wave-packet analysis, including the neutrino mass for the first time, we derive criteria where the effect can be expected to provide the desired signal, and find that neutrinos from the next Galactic supernova should contain extractable PNS radius information.
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