July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

New Measurement of Atmospheric Neutrino Oscillations with IceCube

Aug 2, 2017, 11:21 AM
Ramsey Auditorium (Fermi National Accelerator Laboratory)

Ramsey Auditorium

Fermi National Accelerator Laboratory

Presentation Neutrino Physics Neutrino Physics


Dr João Pedro Athayde Marcondes de André (Michigan State University)


The DeepCore infill array of the IceCube Neutrino Observatory enables observations of atmospheric neutrinos with energies as low as 5 GeV. Using a set of 40,000 neutrino events with energies ranging from 5.6 - 56 GeV recorded during three years of DeepCore operation, we measure the atmospheric oscillation parameters $\theta_{23}$ and $\Delta m^2_{32}$ with precision competitive with long-baseline neutrino experiments, by observing distortions in the neutrino energy-zenith angle distribution. Our measurements are consistent with those made at lower energies, and prefer a value of $\theta_{23}$ close to maximal.

Primary authors

Dr Joshua Hignight (Michigan State University) Dr João Pedro Athayde Marcondes de André (Michigan State University) Prof. Tyce DeYoung (Michigan State University)

Presentation materials