Speaker
Evgeniy Kovalenko
(BINP, NSU)
Description
Belle II detector at SuperKEKB storage ring has started its operation in April 2018. We describe a system used at the Belle-II
experiment for the on-line measurements of the luminosity provided by the SuperKEKB collider utilizing elastic e+e- Bhabha scattering
and two-photon annihilation processes. Statistical accuracy of 2.3% is achieved at the luminosity of the order of $10^{34}$ with a
measurement rate of about 1 Hz. The overall systematic uncertainty is estimated to be at the level of 2%. Comparison with offline
results is also presented.
Primary author
Evgeniy Kovalenko
(BINP, NSU)
