Physics

Luminosity

Electron

Crystallography

Galaxy

Particle physics

Optics

Calorimeter (particle physics)

Nuclear physics

Chemistry

Bhabha scattering

Center (category theory)

Astrophysics

Center of mass (relativistic)

Energy–momentum relation

Classical mechanics

Detector

Chinese Physics C

The integrated luminosities of data samples collected in the BESIII experiment in 2016–2017 at center-of-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering events. The integrated luminosities of old datasets collected in 2010–2014 are updated by considering corrections related to detector performance, offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter, which can haphazardly occur.

Measurement of integrated luminosities at BESIII for data samples at center-of-mass energies between 4.0 and 4.6 GeV*