Neutrino-induced nucleosynthesis of A>64 nuclei: The nu p-process
Astrophysics
2009-11-13 v1 Nuclear Theory
Abstract
We present a new nucleosynthesis process, that we denote nu p-process, which occurs in supernovae (and possibly gamma-ray bursts) when strong neutrino fluxes create proton-rich ejecta. In this process, antineutrino absorptions in the proton-rich environment produce neutrons that are immediately captured by neutron-deficient nuclei. This allows for the nucleosynthesis of nuclei with mass numbers A >64. Making this process a possible candidate to explain the origin of the solar abundances of 92,94Mo and 96,98Ru. This process also offers a natural explanation for the large abundance of Sr seen in an hyper-metal-poor star.
Keywords
Cite
@article{arxiv.astro-ph/0511376,
title = {Neutrino-induced nucleosynthesis of A>64 nuclei: The nu p-process},
author = {C. Fröhlich and G. Martínez-Pinedo and M. Liebendörfer and F. -K. Thielemann and E. Bravo and W. R. Hix and K. Langanke and N. T. Zinner},
journal= {arXiv preprint arXiv:astro-ph/0511376},
year = {2009}
}
Comments
5 pages, 3 figures, submitted to Physical Review Letters