Investigating Collective Flavor Oscillations in Core Collapse Supernova Using COSEν

Interactions between neutrinos inside neutrino dense environments, such as core collapse supernova, causes non-linear effects on neutrino oscillations, which act on a nanosecond scale. These fast flavor conversions affect the relative number of electron and heavy neutrinos which has effects on the progression of the explosion and processes like the formation of heavy elements. I will share their research using the COSEν simulation engine to investigate this collective neutrino oscillation. I will show the way in which these fast flavor oscillations produce waves of flavor conversion, and visually show these waves form and propagate, along with a general discussion on the limitations and inner workings of COSEν.