Volume 129, Number 1, January 2020
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||14 February 2020|
Dirac CP violation as a window to mass hierarchy in neutrino oscillation
School of Science, Xi'an Jiaotong University - Xi'an, 710049, China
Received: 12 November 2019
Accepted: 21 January 2020
Unresolved neutrino problems of mass hierarchy and CP violation have a more interesting interplay in neutrino phenomenology. Differing from the discrete symmetry approach, this issue is pursued from the perspective of neutrino oscillation with the matter effect. The contributions from and are entangled in a complex manner when the mass effect is considered. After investigating the role of in , it is found that at some determined values of , neutrino mass hierarchy can be determined at the same time. By introducing a statistical quantity λ, the requirement of distinguishable mass hierarchy and its confidence level can be investigated. The set of the values of forms a window for addressing mass hierarchy that is calculated for MINOS, NOνA and DUNE.
PACS: 14.60.Pq – Neutrino mass and mixing / 11.30.Er – Charge conjugation, parity, time reversal, and other discrete symmetries / 12.15.Ff – Quark and lepton masses and mixing
© EPLA, 2020
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