SIMBAD references

2020ApJ...891L..24K - Astrophys. J., 891, L24-L24 (2020/March-1)

Neutrino process in core-collapse supernovae with neutrino self-interaction and MSW effects.

KO H., CHEOUN M.-K., HA E., KUSAKABE M., HAYAKAWA T., SASAKI H., KAJINO T., HASHIMOTO M.-A., ONO M., USANG M.D., CHIBA S., NAKAMURA K., TOLSTOV A., NOMOTO K., KAWANO T. and MATHEWS G.J.

Abstract (from CDS):

We calculate the abundances of 7Li, 11B, 92Nb, 98Tc, 138La, and 180Ta produced by neutrino (ν)-induced reactions in a core-collapse supernova explosion. We consider the modification by ν self-interaction (ν-SI) near the neutrinosphere and the Mikheyev-Smirnov-Wolfenstein (MSW) effect in the outer layers based on time-dependent neutrino energy spectra. Abundances of 7Li and the heavy isotopes 92Nb, 98Tc, and 138La are reduced by a factor of 1.5-2.0 by the ν-SI. In contrast, 11B is relatively insensitive to the ν-SI. We find that the abundance ratio of heavy to light nuclei, 138La/11B, is sensitive to the neutrino mass hierarchy, and the normal mass hierarchy is more likely to be consistent with the solar meteoritic abundances.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Supernova neutrinos - Explosive nucleosynthesis - Neutrino oscillations

Simbad objects: 1

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