Short-baseline neutrino oscillations, Planck, and IceCube [CL]

http://arxiv.org/abs/1605.06506


We examine a framework with light new physics, which couples to the Standard Model only via neutrino mixing. Taking the hints from the short-baseline anomalies seriously and combining them with modern cosmological data and recent IceCube measurements, we obtain surprisingly effective constraints on the hidden force: keV $\lesssim M \lesssim0.3$ GeV for the mediator mass and $g_{h}>10^{-6}-10^{-3}$ for the coupling constant. Flavor equilibration between the hidden and active neutrinos can be delayed until temperatures of $\sim 1$ MeV, but not below $\sim 100$ keV. This scenario can be tested with next-generation Cosmic Microwave Background, IceCube, and oscillation experiments.

Read this paper on arXiv…

J. Cherry, A. Friedland and I. Shoemaker
Tue, 24 May 16
4/73

Comments: 6 pages, 3 figures