Preliminary Results from MINOS on v_μ Disappearance Based on an Exposure of 2.5×10~(20 120 GeV Protons on the NuMI Target

摘要

Preliminary neutrino oscillation results are presented on data from the MINOS experiment taken up to March 2007, yeilding an exposure of 2.50×10~(20) protons on target. New values of △m3~2= (2.380-0.16~(+0.20))×10?~3eV~2/c~4 and sin5~22_(23) = 1.00_(?0.08) are obtained.