Speaker
Martino Gagliardi
(Università di Torino & INFN Torino)
Description
Cross section measurements are key to the ALICE physics program and require precise luminosity determination. In ALICE, the luminosity determination relies on visible cross sections measured in dedicated calibration experiments, the van der Meer scans. For the LHC Run 2 data samples, ALICE measured the luminosity with an uncertainty better than 2% for pp collisions and 3% for Pb-Pb collisions. In this talk, the methodology and results of the measurement will be presented and discussed. The first measurement of the inelastic hadronic cross section for Pb-Pb collisions at \sqrt{s_{NN}} = 5.02 TeV, obtained by efficiency correction of the visible cross section, will also be presented and discussed in the framework of available models.
Primary author
Martino Gagliardi
(Università di Torino & INFN Torino)
