Large Rapidity Gap Method to Select Soft Diffraction Dissociation at the LHC

Figure 12

The total energy deposition and the multiplicity of the neutral particles with  MeV in the ZDC detectors for the events that have an edge gap in with a gap size , and with in the opposite side from the gap (either at or depending on the gap position). A cut of  MeV was applied for the final state particles in to find the size of the gap. ZDC′ refers to the ZDC which is on the side opposite to the gap and ZDC′′ is the ZDC on the side with the gap. Total energy deposition in (a) ZDC′ and (b) ZDC′′ and particle multiplicity in (c) ZDC′ and (d) ZDC′′ are given. The distributions are normalized to the number of events, N, that pass the analysis cuts.

(a)

(b)

(c)

(d)