Nucleosynthesis Induced by Neutrino Spallation of Helium

Details Nucleosynthesis Induced by Neutrino Spallation of Helium Nucleosynthesis Induced by Neutrino Spallation of Helium

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997nupha.621..359n&link_type=abstract

Nuclear Physics A, v. 621, p. 359-362.

Physics

Nuclear Physics

1

Scientific paper

When a strong neutrino flux, emitted by a collapsing stellar core, interacts with the helium shell of a star, it can destroy some amount of 4He to give rise to thermonuclear reactions of importance for the synthesis of light isotopes (e.g., 7Li). It will also be responsible for production of free neutrons under favorable conditions to drive r-process. We have undertaken a series of calculations aimed at specifying the physical conditions (initial temperature and density of the shell, its distance from stellar center, initial admixture of Fe, 14N and other ``metals'') favorable for a noticeable contribution of this process to cosmic abundances. Heating of the shell due to neutrino interaction with stellar matter was taken into account.

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