Large Rapidity Gaps in proton-nucleus interaction
Abstract
We analyse the cross-section of events with Large Rapidity Gaps observed in proton-lead collisions by the CMS collaboration. The role of the transverse size of elementary pN amplitude is discussed. We emphasize that the cross-section of incoming proton dissociation caused by the photon radiated off the lead ion is close to the value of dσ/dηF measured by the CMS, and it is not clear why there is no room in the data for the Pomeron-induced contribution
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