IceCube flavor ratios with identified astrophysical sources: towards improving new physics testability

2018/12/31 by Vedran Brdar, Rasmus S.L. Hansen, Rasmus S. L. Hansen
Physics and Astronomy · #Astroparticle physics #Astrophysics and Cosmic Phenomena #Blazar #Detector #Neutrino #Neutrino Physics Research #Neutrino astronomy #Neutrino oscillation #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Testability #astro-ph.HE #hep-ph

paper · pdf · doi:10.1088/1475-7516/2019/02/023

published as JCAP 02 (2019) 023 · 17 pages, 5 figures

openalex created_date 2018/12/22 · arxiv created 2019/02/13 · openalex publication_date 2019/02/13 · arxiv updated 2019/02/14 · openalex updated_date 2026/08/05

Abstract

Motivated by the discovery of the first high-energy astrophysical neutrino source, the blazar TXS 0506+056, we revisit the IceCube flavor ratio analysis. Assuming large statistics from identified blazars, collected in the forthcoming years by the IceCube detector and its successor IceCube-Gen2, we demonstrate that the constraints on several new physics scenarios in which the baseline dependent terms in neutrino oscillation probabilities are not averaged, can be improved. As a representative case, we consider pseudo-Dirac neutrinos while neutrino decay is also discussed.

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