PoS - Proceedings of Science
Volume 281 - The 26th International Nuclear Physics Conference (INPC2016) - Neutrinos and Nuclei – Monday 12
Collective Neutrino Flavor Oscillations And Supernova Nucleosynthesis In Proton-rich Gas Flows
H. Sasaki*, T. Kajino, T. Takiwaki, J. Hidaka, T. Maruyama, Y. Pehlivan and A.B. Balantekin
Full text: pdf
Pre-published on: May 04, 2017
Published on: May 09, 2017
Abstract
In core-collapse supernovae, non-linear effects are caused by self-interacting neutrinos emitted from the proto-neutron star. These many-body effects induce collective neutrino oscillations and dramatic flavor changes in neutrino fluxes which will have crucial effects on $\nu$-process in outer layers or explosive nucleosynthesis such as $r$-process and $\nu p$-process in neutrino-driven winds. We have studied collective neutrino oscillations in the realistic 3 flavor multi-angle calculation using the simulation data of 1D explosion model. We have also applied these oscillation results to the nucleosynthesis in a proton-rich gas trajectory consistently. Especially, in normal neutrino mass hierarchy, we find the enhancement of the $\bar{\nu}_{e}$ flux caused by collective neutrino oscillations before $\nu p$-process proceeds actively. Therefore, $\nu p$-process is triggered by more free neutrons produced by the $\bar{\nu}_{e}$ absorption on protons and this nucleosynthesis is successful to raise up the abundances of lighter $p$-nucleus such as Se, Kr, and Sr greatly. Heavier $p$-nucleus like $^{92}\mathrm{Mo}$ and $^{96}\mathrm{Ru}$ are expected to enhanced by collective neutrino oscillations in more proton-rich and slower gas flows.
DOI: https://doi.org/10.22323/1.281.0237
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.