Measurement of visible cross sections in proton-lead collisions at sqrt(s_NN)=5.02 TeV in van der Meer scans with the ALICE detector

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5.02 TeV
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In 2013, the Large Hadron Collider provided proton-lead and lead-proton collisions at the center-of-mass energy per nucleon pair sqrt(sNN) = 5.02 TeV. Van der Meer scans were performed for both configurations of colliding beams, and the cross section was measured for two reference processes, defined as the trigger signals issued by the T0 (4.6<eta < 4.9, −3.3 < eta < −3.0) and V0 (2.8  < eta < 5.1, −3.7 < eta < −1.7) detectors. Given the asymmetric detector setup, the cross section was measured separately for the two configurations.  The results were used to the measure the integrated luminosity for the proton-lead and leadproton data samples and to calibrate a third reference trigger, issued by the Zero Degree Calorimeter.

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