000001332 001__ 1332 000001332 005__ 20190418071936.0 000001332 037__ $$aBELLE2-TALK-CONF-2019-014 000001332 041__ $$aeng 000001332 088__ $$aBELLE2-TALK-DRAFT-2019-028 000001332 100__ $$aClaudia Cecchi 000001332 245__ $$aThe Belle II Experiment: Status and Prospects 000001332 260__ $$aLa Thuile 2019$$c2019-03-10 000001332 300__ $$amult. p 000001332 500__ $$a20 min 000001332 520__ $$aThe Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^+ e^-$ collider. The accelerator has already successfully completed the first phase of commissioning in 2016. First electron positron collisions in Belle II are expected for April 2018. The design luminosity of SuperKEKB is $8 \times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to record 50 ab$^{-1}$ of data, a factor of 50 more than the Belle experiment. This large data set will be accumulated with low backgrounds and high trigger efficiencies in a clean $e^+e^-$ environment. This talk will review the detector upgrade, the achieved detector performance and the plans for the commissioning of Belle II 000001332 8560_ $$fclaudia.cecchi@desy.de 000001332 8564_ $$uhttps://docs.belle2.org/record/1332/files/BELLE2-TALK-CONF-2019-014.pdf