Latest Results from MINOS and MINOS+

5th Symposium on Prospects in the Physics of Discrete Symmetries

De Rijck, Simon^1

University of Texas at Austin, Department of Physics, 2515 Speedway, C1600, Austin

TX

78712-1192, United States^1

关键词: Accelerator beams;    Atmospheric neutrinos;    Extra dimensions;    MiniBooNE;    Neutrino mass;    Parameter spaces;    Peak energy;    Sterile neutrinos;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/873/1/012032/pdf
DOI  :  10.1088/1742-6596/873/1/012032

来源: IOP

【 摘 要 】

The MINOS and MINOS+ experiments collected accelerator beam neutrino and antineutrino data for 11 years corresponding to peak energies of 3 GeV and 6 GeV, respectively, over a baseline of 735 km. These proceedings report on new limits and constraints set by MINOS and MINOS+ in and beyond the standard three-flavor paradigm. The atmospheric neutrino mass splitting in the three-flavor model is measured to be (2.42 ± 0.09) × 10-3eV2for normal mass ordering and for inverted mass ordering. Constraints are set on sterile neutrinos and antineutrinos in the four-flavor model by looking for sterile-driven νμand disappearance and sterile-driven νeand appearance. A combination of the MINOS four-flavor νμdisappearance search and the Daya Bay and Bugey-3 four-flavor disappearance searches excludes the parameter space allowed by LSND and MiniBooNE for at 90% C.L. The size of large extra dimensions is constrained to be smaller than 0.17 μm at 90% C.L. in the limit of a vanishing lightest active neutrino mass. Finally, a search for non-standard νeand appearance in MINOS is presented.