Peter B. Denton

The galactic contribution to IceCube's astrophysical neutrino flux

High energy neutrinos have been detected by IceCube, but their origin remains a mystery. Determining the sources of this flux is a crucial first step towards multi-messenger studies. In this work we systematically compare two classes of sources with the data: Galactic and extragalactic. We assume that the neutrino sources are distributed according to a class of Galactic models. We build a likelihood function on an event by event basis including energy, event topology, absorption, and direction information. We present the probability that each high energy event with deposited energy

Testing large non-standard neutrino interactions with arbitrary mediator mass after COHERENT data

E_{rm dep}>60

Addendum to “Compact perturbative expressions for neutrino oscillations in matter”

TeV in the HESE sample is Galactic, extragalactic, or background. For Galactic models considered the Galactic fraction of the astrophysical flux has a best fit value of

Exploring the Properties of Choked Gamma-ray Bursts with IceCube’s High-energy Neutrinos

1.3%

Analytic Neutrino Oscillation Probabilities in Matter: Revisited

and is

Invisible Neutrino Decay Resolves IceCube's Track and Cascade Tension

<9.5%

The Effective

at 90% CL. A zero Galactic flux is allowed at

\Delta m^2_{ee}

<1sigma

in Matter

.

A Plan to Rule out Large Non-Standard Neutrino Interactions After COHERENT Data

A bstractIn the presence of neutrino Non-Standard Interactions (NSI) with matter, the derivation of neutrino parameters from oscillation data must be reconsidered. In particular, along with the standard solution to neutrino oscillation, another solution known as “LMA-Dark” is compatible with global oscillation data and requires both θ12 > π/4 and a certain flavor pattern of NSI with an effective coupling comparable to GF . Contrary to conventional expectations, there is a class of models based on a new U(1)X gauge symmetry with a gauge boson of mass of few MeV to few 10 MeV that can viably give rise to such large NSI. These models can in principle be tested by Coherent Elastic ν-Nucleus Scattering (CEνNS) experiments such as COHERENT and the upcoming reactor neutrino experiment, CONUS. We analyze how the recent results from the COHERENT experiment constrain these models and forecast the discovery potential with future measurements from COHERENT and CONUS. We also derive the constraints from COHERENT on lepton flavor violating NSI.