Mahony, C;
Leistedt, B;
Peiris, H;
Braden, J;
Joachimi, B;
Korn, A;
Cremonesi, L;
(2020)
Target neutrino mass precision for determining the neutrino hierarchy.
Physical Review D
, 101
(8)
, Article 083513. 10.1103/PhysRevD.101.083513.
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Abstract
Recent works combining neutrino oscillation and cosmological data to determine the neutrino hierarchy found a range of odds in favor of the normal hierarchy. These results arise from differing approaches to incorporating prior knowledge about neutrinos. We develop a hierarchy-agnostic prior and show that the hierarchy cannot be conclusively determined with current data. The determination of the hierarchy is limited by the neutrino mass scale Σ_{v} measurement. We obtain a target precision of σ(Σ_{v}) = 0.014 eV, necessary for conclusively establishing the normal hierarchy with future data.
| Type: | Article |
|---|---|
| Title: | Target neutrino mass precision for determining the neutrino hierarchy |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.101.083513 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.101.083513 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Cosmic microwave background, Large scale structure of the Universe, Neutrino oscillations, Neutrinos, Bayesian methods |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10095888 |
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