September 29, 2025 to October 3, 2025
Palazzo del Bo and Centro Culturale San Gaetano
Europe/Rome timezone
Poster Session details online here on the INDICO web site

Neutrino flavor instabilities: onset and development

Oct 1, 2025, 9:10 AM
20m
Spazio 35 (Centro Culturale Altinate San Gaetano)

Spazio 35

Centro Culturale Altinate San Gaetano

Contributed Talk Neutrino Theory & Cosmology Neutrino Theory & Cosmology

Speaker

Manuel Goimil-García (Niels Bohr Institute, University of Copenhagen)

Description

At high enough neutrino densities, the phenomenology of flavor conversion may be governed by neutrino-neutrino coherent forward scattering. In contrast to neutral current scattering on charged leptons, this process can be flavor-changing. The coherent nature of the interaction then implies that a large amount of neutrinos can undergo flavor conversion simultaneously. This collective effect is prone to runaway modes, which can change the flavor content of a neutrino ensemble on very short time scales. Capturing these instabilities is crucial in order to accurately model the large-scale dynamics of compact astrophysical objects. In this talk, I will describe the appearance and evolution of collective flavor instabilities in simple models of neutrino-dense media and provide simple recipes to predict the final flavor configuration.

Speaker: Manuel Goimil-García (Niels Bohr Institute, University of Copenhagen).
Contact: manuel.garcia@nbi.ku.dk

Neutrino Properties N/A
Neutrino Telescopes & Multi-messenger Neutrinos from compact astrophysical sources
Neutrino Theory & Cosmology Flavor conversion phenomenology and neutrino quantum kinetics
Data Science and Detector R&D N/A

Author

Manuel Goimil-García (Niels Bohr Institute, University of Copenhagen)

Co-author

Irene Tamborra (Niels Bohr Institute)

Presentation materials

There are no materials yet.