Measurement of reference cross sections in pp and Pb-Pb collisions at   the LHC in van der Meer scans with the ALICE detector
  Reference cross sections have been measured with the ALICE detector in both pp and Pb-Pb collisions, in dedicated luminosity calibration experiments (van der Meer scans) at the LHC. The results and their uncertainties are discussed, together with a few selected applications. 
Martino Gagliardi (for the ALICE collaboration)
hep-ex nucl-ex