Kavli Affiliate: Mark Hartz
| Summary:
The T2K collaboration: reports evidence for electron neutrino appearance at the atmospheric mass splitting, |Δm_32^2|=2.4×10^-3 eV^2. An excess of electron neutrino interactions over background is observed from a muon neutrino beam with a peak energy of 0.6 GeV at the Super-Kamiokande (SK) detector 295 km from the beam’s origin. Signal and background predictions are constrained by data from near detectors located 280 m from the neutrino production target. We observe 11 electron neutrino candidate events at the SK detector when a background of 3.3pm0.4(syst.) events is expected. The background-only hypothesis is rejected with a p-value of 0.0009 (3.1σ), and a fit assuming ν_μ->ν_e oscillations with sin^2(2θ_23)=1, δ_CP=0 and |Δm_32^2|=2.4×10^-3 eV^2 yields sin^2(2θ_13)=0.088^+0.049_-0.039(stat.+syst.).
| Search Query: arXiv Query: search_query=au:”Hartz Mark”&id_list=&start=0&max_results=10
Read More