The Belle II experiment at the SuperKEKB collider

The Belle II experiment at the SuperKEKB collider in Tsukuba, Japan, will start physics data taking in the year 2018 and aims at accumulating 50 ab -1 of e + e -collision data, about 50 times the data set of the previous Belle experiment. The physics program provides simultaneous studies of a wide range of areas in b-quark, c-quark, -lepton, two-photon, quarkonium and exotic physics. Belle II, as a next generation flavour factory, will search for New Physics in the flavour sector at the precision frontier, and further reveal the nature of QCD in describing matter. In this article, we review the current state of Belle II construction and describe the main physics opportunities at this future facility.

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