23–26 May 2024
Mitchell Institute, Texas A&M University
America/Chicago timezone

Matter Effect on the Flavor Composition of Astrophysical Neutrinos

25 May 2024, 14:50
25m
Hawking Auditorium (Mitchell Institute, Texas A&M University)

Hawking Auditorium

Mitchell Institute, Texas A&M University

Speaker

Bhupal Dev (Washington University in St. Louis)

Description

The sources of the high-energy neutrino events detected by IceCube remain largely unknown. A more precise neutrino flavor ratio measurement in the future will be crucial in resolving this open question. We discuss how the flavor ratio gets modified in presence of matter effects for Active Galactic Nuclei (AGNs) which are currently the most promising astrophysical candidate sources. We show that the matter effect provides a unique probe of heavily Compton-thick AGNs which escape conventional detection in electromagnetic wavelengths. Finally, we will briefly talk about the matter effect induced by the relic neutrino background on the flavor composition.

Author

Bhupal Dev (Washington University in St. Louis)

Presentation materials