2013/09/30 by Shao-Feng Ge, Kaoru Hagiwara, Carsten Rott
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Event (particle physics) #Measurements of neutrino speed #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Octant (instrument) #Particle physics theoretical and experimental studies #Solar neutrino #Solar neutrino problem #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep06(2014)150
29 pages, 12 figures, reference updated, structure adjusted and text further improved
arxiv created 2013/12/22 · openalex publication_date 2014/06/01 · arxiv updated 2015/06/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We develop a general theoretical framework to analytically disentangle the contributions of the neutrino mass hierarchy, the atmospheric mixing angle, and the CP phase, in neutrino oscillations. To illustrate the usefulness of this framework, especially that it can serve as a complementary tool to neutrino oscillogram in the study of atmospheric neutrino oscillations, we take PINGU as an example and compute muon- and electron-like event rates with event cuts on neutrino energy and zenith angle. Under the assumption of exact measurement of neutrino momentum with a perfect e-μ identification and no background, we find that the PINGU experiment has the potential of resolving the neutrino mass hierarchy and the octant degeneracies within 1-year run, while the measurement of the CP phase is significantly more challenging. Our observation merits a serious study of the detector capability of estimating the neutrino momentum for both muon- and electron-like events.