Conveners
Neutrinos III
- Peter Denton (Niels Bohr International Academy)
We explore the implications of recent results relating the Dirac CP-violating phase to predicted and measured leptonic mixing angles within a standard set of theoretical scenarios in which charged lepton corrections are responsible for generating a non-zero value of the reactor mixing angle. We employ a full set of leptonic sum rules as required by the unitarity of the lepton mixing matrix,...
We present a novel framework that provides an explanation to the long-standing excess of electronlike events in the MiniBooNE experiment at Fermilab. We suggest a new dark sector containing a dark neutrino and a dark gauge boson, both with masses between a few tens and a few hundreds of MeV. Dark neutrinos are produced via neutrino-nucleus scattering, followed by their decay to the dark gauge...
In Zee model, radiative neutrino mass model, new scalar bosons are added that can induce significant nonstandard neutrino interactions (NSI). In this talk, I will present our results of a comprehensive analysis of NSI. Diagonal NSIs of order several percents are found to be possible that utilizes charged scalars.
Non-standard neutrino interactions (NSI) can interfere with measurements of neutrino oscillation parameters at long-baseline experiments, in particular making determination of $\delta_{13}$ ambiguous. Measurements at different baselines or energies may be combined to improve this situation, but it can be difficult to see the influence of individual parameters and determine when degeneracies...
X-ray observations of clusters and galaxies have detected an unexplained X-ray emission line around 3.5 keV. This line has been the subject of many recent works due to its potential explanation as due to decaying dark matter. In particular, sterile neutrinos with a mass of 7 keV and mixing angles of $\sim10^{−10}$ provide a good fit to the data. I discuss recent work in which we exploit the...
We will demonstrate the usage of GDML within GEANT4 for building and optimizing shielding for germanium detectors used by MINER, which is a current experiment aimed at detecting coherent elastic neutrino-nucleus scattering at a few meter baseline from a 1MW nuclear reactor. We will discuss preliminary comparisons with background data recently obtained by a germanium detector at the reactor...
We revisit calculations of invisible widths of heavy mesons in the standard model, which serve as benchmarks for the studies of production of light, long-lived neutral particles in heavy meson decays. We challenge the common assumption that in the standard model these widths are dominated by meson decays into a two-neutrino final state and prove that they are dominated by decays into...
