Precision luminosity measurement at LHC using two-photon production of mu+ mu- pairs
Abstract
The application of the two-photon process pp -> pp + mu+mu- for the luminosity measurements at LHC with the ATLAS detector is considered. The expected accuracy of the absolute offline luminosity determination is 1 - 2 % for the luminosity range of 1033 - 1034 cm-2 s-1. The preliminary cross section estimates done for LHCb promise the same level of the luminosity measurement accuracy at L = 2 x 1032 cm-2 s-1.
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