Supernova heavy element nucleosynthesis: Can it tell us about neutrino masses?

Details Supernova heavy element nucleosynthesis: Can it tell us about neutrino masses? Supernova heavy element nucleosynthesis: Can it tell us about neutrino masses?

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..412..160f&link_type=abstract

The sixth conference on the intersections of particle and nuclear physcis. AIP Conference Proceedings, Volume 412, pp. 160-180

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Neutrino Mass And Mixing, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments

Scientific paper

Here we describe a new probe of neutrino properties based on heavy element nucleosynthesis. This technique is in many ways akin to the familiar light element Primordial Nucleosynthesis probe of conditions in the early universe. Our new probe is based on the fact that neutrino masses and vacuum mixings can engender matter-enhanced neutrino flavor transformation in the post core bounce supernova environment. Transformations of the type νμ(r)⇌νe in this site will have significant effects on the synthesis of the rapid neutron capture (r-Process) elements and the light p-nuclei. We suggest that an understanding of the origin of these nuclides, combined with the measured abundances of these species, may provide a ``Rosetta Stone'' for neutrino properties. Heavy element nucleosynthesis abundance considerations give either constraints/evidence for neutrino masses and flavor mixings, or strong constraints on the site of origin of r-Process nucleosynthesis. The putative limits on neutrino characteristics are complimentary to those derived from laboratory neutrino oscillation studies and solar and atmospheric neutrino experiments. Preliminary studies show that the existence of r-Process nuclei in the abundances observed in the Galaxy cannot be understood unless neutrinos have small masses (possibly in the cosmologically significant range).

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