Results from MINOS and NOvA

[摘要] The MINOS experiment, operating in the NuMI beam since 2005, has provided the most precise measurement of the atmospheric mass splitting |Δm232|, and the recent combination of the vμ, ve, and atmospheric neutrino samples has provided some evidence of non-maximal mixing, and hints about the neutrino mass hierarchy and the θ23octant. Construction of the NOvA experiment, situated off-axis in the upgraded NuMI beam, is almost complete. Over the coming years it will have significant power to probe the questions of the mass hierarchy, θ23octant, and the possibility of CP violation in the lepton sector. This paper gives an overview of the results from MINOS, and of the sensitivity of the NOνA experiment.

[发布机构] California Institute of Technology, 1200 E California Blvd, Pasadena; CA; 91125, United States^1

[关键词] Atmospheric neutrinos;CP violations;Mass hierarchy;Neutrino mass;NuMI beam;Off-axis;Precise measurements