Efforts to incorporate neutrino oscillation in merger simulations

Jun 9, 2025, 4:36 PM
22m
Old Madison

Old Madison

Parallel session presentation Particle and Nuclear Astrophysics Particle and Nuclear Astrophysics

Speaker

Somdutta Ghosh (University of New Hampshire)

Description

Neutrino flavor oscillation in compact object mergers will significantly affect the merger dynamics and the electron fraction. In particular, fast flavor instability close to the central object in neutron star merger simulations can change r-process abundance. Over the years, many approaches have been taken to include flavor oscillation during the simulation or post-processing. In this talk, I will review the progress made by the community in understanding the effect of flavor oscillation on merger dynamics and r-process abundances. I will also discuss the challenges of solving quantum kinetic equations in numerical simulations and highlight our efforts to include a fast flavor oscillation model in neutron star merger simulations.

Primary author

Somdutta Ghosh (University of New Hampshire)

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