When hypothetical neutrino secret interactions (ν SI) are large, they form a fluid in a
supernova (SN) core, flow out with sonic speed, and stream away as a fireball. For the first …

Neutrino-neutrino scattering could have a large secret component that would turn neutrinos
within a supernova (SN) core into a self-coupled fluid. Neutrino transport within the SN core …

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 …

A bstract Light hypothetical particles with masses up to\(\mathcal {O}(100)\) MeV can be
produced in the core of supernovae. Their subsequent decays to neutrinos can produce a …

A bstract In recent years, the gauge group\(\textrm {U}{(1)} _ {L_ {\mu}-{L} _ {\tau}}\) has
received a lot of attention since it can, in principle, account for the observed excess in the …

Thermal freeze-out offers an attractive explanation of the dark matter density free from fine-
tuning of initial conditions. For dark matter with a mass below tens of MeV, photons …

In this work, we study the previously unexplored resonant region of neutrino self-
interactions. Current disagreement on late and early time observations of the Universe …

A core-collapse supernova (SN) releases almost all of its energy in the form of neutrinos,
which provide a unique opportunity to probe the working machinery of an SN. These sites …

We propose a novel explanation for the 18 TeV gamma ray from GRB 221009A observed by
LHAASO. High-energy neutrinos are converted into axion-like particles (ALPs) via their …

We discuss the future prospects of a minimally five-dimensional version of the well-
motivated scenario for addressing the discrepancy in the muon anomalous magnetic …