Luminosity

The luminosity of a collider is a measure of the number of events produced per second for a given process. It is given in cm-2s-1 , barn-1s-1 or femtobarn-1s-1=fb-1s-1=1039 cm-2s-1 i.e. LHC luminosity ~ 1034 cm-2s-1 = 10-5 fb-1s-1 =10 nb-1s-1 mm