000001802 001__ 1802 000001802 005__ 20200108031528.0 000001802 037__ $$aBELLE2-CONF-PROC-2019-019 000001802 041__ $$aeng 000001802 100__ $$aKunxian Huang 000001802 245__ $$aThe Belle II experiment Status and Prospects 000001802 260__ $$a$$c2019-12-24 000001802 300__ $$a4 000001802 500__ $$aProceedings for NuFact 2019 talk at parallel session 000001802 520__ $$aThe Belle II experiment at the SuperKEKB energy-asymmetric $e^{+}e^{-}$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\times10^{35}\: cm^{-2}s^{-1}$ and the Belle II experiment aims to record $50\:ab^{-1}$ of data, a factor of 50 more than its predecessor. With this data set, Belle II will be able to measure the Cabibbo-Kobayashi-Maskawa (CKM) matrix, the matrix elements and their phases, with unprecedented precision and explore flavor physics with $B$ and charmed mesons, and $\tau$ leptons. Belle II has also a unique capability to search for low mass dark matter and low mass mediators. Commissioning operations with full detector, called "Phase 3 run", have started in March 2019 and recorded data of integrated luminosity of 6.49 $fb^{-1}$ until June 2019. Here, we reported the status of the Belle II detector, the results from the early data, and the prospects for the study of rare decays, in the quest of uncovering New Physics 000001802 6531_ $$aNuFact2019 000001802 8560_ $$fkunxian.huang@desy.de 000001802 8564_ $$uhttps://docs.belle2.org/record/1802/files/BELLE2-CONF-PROC-2019-019.pdf 000001802 8564_ $$uhttps://docs.belle2.org/record/1802/files/belle2_khuang.pdf$$zversion 2 file 000001802 8564_ $$uhttps://docs.belle2.org/record/1802/files/belle2_khuangv2.pdf$$zNufact proceedings draft version 3 000001802 8564_ $$uhttps://docs.belle2.org/record/1802/files/belle2_khuangv3.pdf$$zNuFact proceedings revised draft v3 000001802 8564_ $$uhttps://docs.belle2.org/record/1802/files/belle2_khuangv4.pdf$$zNuFact proceedings draft v4