Macroscopic Parity violation and Supernova Asymmetries

Details Macroscopic Parity violation and Supernova Asymmetries Macroscopic Parity violation and Supernova Asymmetries

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..apr..m707l&link_type=abstract

American Physical Society, APS/AAPT Joint April Meeting, April 18-21, 1998 Columbus, Ohio, abstract #M7.07

Physics

Scientific paper

A core collapse supernova is dominated by weakly interacting neutrinos. This provides a unique opportunity for large scale parity violation. We examine neutrino transport inside a slightly polarized protoneutron star which has a strong B field. The parity violating asymmetry in the neutrino flux (with respect to the direction of the B field) is found to be much larger than the polarization of individual nucleons. This is because neutrinos interact a large number of times as they diffuse out of the protoneutron star. As a consequence, the asymmetry in the explosion will produce a large "kick" velocity for the natural neutron star. More over, there could be significant asymmetries in macroscopic quantities such as the temperature, chemical potential or lepton fraction.

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