The flavor composition of high-energy astrophysical neutrinos can reveal the physics governing their production, propagation, and interaction. The IceCube Collaboration has …
Astrophysical neutrinos are powerful tools for investigating the fundamental properties of particle physics through their flavor content. In this Letter, we perform the first general new …
The flavor of cosmic neutrinos may help unveil their sources and could reveal the presence of new physics in the neutrino sector. We consider impacts of next-generation neutrino …
S Palomares-Ruiz, AC Vincent, O Mena - Physical Review D, 2015 - APS
A full energy and flavor-dependent analysis of the three-year high-energy IceCube neutrino events is presented. By means of multidimensional fits, we derive the current preferred …
In-ice radio detection is a promising technique to discover and characterize ultrahigh-energy (UHE) neutrinos, with energies above 10 17 eV, adopted by present—ARA, ARIANNA, and …
KJ Kelly, PAN Machado - Journal of Cosmology and Astroparticle …, 2018 - iopscience.iop.org
We discuss how to constrain new physics in the neutrino sector using multimessenger astronomical observations by the IceCube experiment. The information from time and …
A DiFranzo, D Hooper - Physical Review D, 2015 - APS
Light gauge bosons can lead to resonant interactions between high-energy astrophysical neutrinos and the cosmic neutrino background. We study this possibility in detail …
Since neutrinos have mass differences they could decay into one another, but their lifetimes are likely long, even when shortened by new physics, so decay likely impacts neutrinos only …
AC Vincent, S Palomares-Ruiz, O Mena - Physical Review D, 2016 - APS
After four years of data taking, the IceCube neutrino telescope has detected 54 high-energy starting events (HESE, or contained-vertex events) with deposited energies above 20 TeV …