TY - CONF AU - Reinherz-Aronis, Erez TI - Precision measurement of ν<sub>μ</sub> disappearance by T2K IS - DESY-PROC-2014-04 CY - Hamburg PB - Deutsches Elektronen-Synchrotron, DESY M1 - PUBDB-2015-05397 M1 - DESY-PROC-2014-04 SP - 334-338 PY - 2014 AB - T2K is a long-baseline neutrino oscillation experiment, where a muon neutrino beam is produced at the J-PARC facility and after traveling 295 km it is detected by Super-Kamiokande, a water Cherenkov detector with a 22.5 kton fiducial mass.One aim of the experiment is to precisely determine the mixing angle θ<sub>23</sub> and the mass squared difference ∆m<sup>2</sup><sub>23</sub> using a measurement of muon neutrino disappearance. The T2K accumulated dataset is 6.57×10<sup>20</sup> protons on target, which is 8% of the experimental goal. Here we present an analysis of the T2K muon neutrino disappearance data and the world’s best constraint on the value of the mixing angle θ<sub>23</sub> obtained by this analysis. T2 - Panic2014 CY - 25 Aug 2014 - 29 Aug 2014, Hamburg (Germany) Y2 - 25 Aug 2014 - 29 Aug 2014 M2 - Hamburg, Germany KW - talk: Hamburg 2014/08/24 (INSPIRE) KW - neutrino nucleus: interaction (INSPIRE) KW - neutrino: oscillation (INSPIRE) KW - neutrino/mu: beam (INSPIRE) KW - Cherenkov counter: water (INSPIRE) KW - KAMIOKANDE (INSPIRE) KW - J-PARC Lab (INSPIRE) KW - neutrino: mixing angle (INSPIRE) KW - neutrino: mass difference (INSPIRE) KW - precision measurement (INSPIRE) KW - experimental results (INSPIRE) LB - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15 DO - DOI:10.3204/DESY-PROC-2014-04/165 UR - https://bib-pubdb1.desy.de/record/291425 ER -