Neutrino mass hierarchy extraction using atmospheric neutrinos in ice
Olga Mena, Irina Mocioiu, Soebur Razzaque
TL;DR
This paper proposes using atmospheric neutrino measurements in IceCube to determine the neutrino mass hierarchy, especially for certain mixing angles, with high exposure and manageable uncertainties.
Contribution
It introduces a method to extract the neutrino mass hierarchy using atmospheric neutrinos detected by IceCube, focusing on specific energy ranges and systematic conditions.
Findings
Hierarchy can be determined with 100 Mton years exposure
Effective for sin^2(2theta13) near current bounds
Normal hierarchy is distinguishable under proposed conditions
Abstract
We show that the measurements of 10 GeV atmospheric neutrinos by an upcoming array of densely packed phototubes buried deep inside the IceCube detector at the South Pole can be used to determine the neutrino mass hierarchy for values of sin^2(2theta13) close to the present bound, if the hierarchy is normal. These results are obtained for an exposure of 100 Mton years and systematic uncertainties up to 10%.
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