Flavor swapping and non-forward scattering in the neutrino-driven wind

Jun 12, 2025, 5:09 PM
23m
Great Hall

Great Hall

Parallel session presentation Neutrino Masses, Mixings and Interactions Neutrino Masses. Mixings and Interactions

Speaker

Michael Cervia (University of Washington, Seattle)

Description

Neutrino flavor is expected to undergo fast and large oscillations due to collective effects in neutrino-dense environments, where neutrino-neutrino interactions are at play. While a quantum kinetics treatment is known to predict a smaller effect from non-forward scattering in such interactions compared to forward scattering (i.e., flavor swaps), this hierarchy has not yet been clearly established in general. I will discuss how we can model both of these contributions to neutrino interactions directly from low-energy effective field theory and compare the relative importance of forward and non-forward scattering terms.

Primary author

Michael Cervia (University of Washington, Seattle)

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