Abstract Neutrinos are the Standard Model (SM) particles which we understand the least,
often due to how weakly they interact with the other SM particles. Beyond this, very little is …

The observation of electromagnetic radiation from radio to γ-ray wavelengths has provided a
wealth of information about the Universe. However, at PeV (10 15 eV) energies and above …

Abstract The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to
accurately observe ultra-high-energy cosmic rays (UHECRs) and cosmic neutrinos from …

Astrophysical neutrinos are excellent probes of astroparticle physics and high-energy
physics. With energies far beyond solar, supernovae, atmospheric, and accelerator …

Neutrinos are one of the most promising messengers for signals of new physics Beyond the
Standard Model (BSM). On the theoretical side, their elusive nature, combined with their …

Neutrinos remain mysterious. As an example, enhanced self-interactions (ν SI), which would
have broad implications, are allowed. At the high neutrino densities within core-collapse …

Tau neutrinos are the least studied particle in the standard model. This whitepaper
discusses the current and expected upcoming status of tau neutrino physics with attention to …

A bstract We investigate the impact of new light particles, carrying significant energy in the
early universe after neutrino decoupling, on the cosmological effective relativistic neutrino …

We propose a new probe of cosmic relic neutrinos (CνB) using their resonant scattering
against cosmogenic neutrinos. Depending on the lightest neutrino mass and the energy …

Protoneutron stars formed during core-collapse supernovae are hot and dense
environments that contain a sizable population of muons. If these interact with new long …