We review open questions and prospects for progress in ultrahigh-energy cosmic ray
(UHECR) research, based on a series of discussions that took place during the “The High …

This review demonstrates the unique role of the neutrino by discussing in detail the physics
of and with neutrinos. We deal with neutrino sources, neutrino oscillations, absolute masses …

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

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

Multi-messenger astrophysics, a long-anticipated extension to traditional multiwavelength
astronomy, has emerged over the past decade as a distinct discipline providing unique and …

This article presents the design of the Radio Neutrino Observatory Greenland (RNO-G) and
discusses its scientific prospects. Using an array of radio sensors, RNO-G seeks to measure …

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 …

We analyze the recent hints of lepton flavor universality violation in both charged-current
and neutral-current rare decays of B mesons in an R-parity-violating supersymmetric …

The interaction of ultra-high-energy cosmic rays (UHECRs) with pervasive photon fields
generates associated cosmogenic fluxes of neutrinos and photons due to photohadronic …

The annihilation of dark matter into neutrinos over a range of dark matter masses from MeV/c
2 to ZeV/c 2 is reviewed. Thermally produced models of dark matter are expected to self …