Double Pomeron exchange studies in [ital p[bar p]] interactions at 0. 63 TeV
1993
The properties of events having the topology and kinematic features of double Pomeron exchange are described. The data were taken at the CERN [ital p[bar p]] collider at [radical][ital s] =0.63 TeV in the UA1 detector. A calorimeter trigger was used to isolate events in which a central cluster of particles was separated from forward particles by large rapidity gaps. The invariant mass [ital M] of the central cluster (possibly a colliding Pomeron-Pomeron system) covers the range 10--70 GeV/[ital c][sup 2]. The [ital M] dependence of charged particle multiplicity distributions in these double Pomeron events is strikingly different from their [radical][ital s] dependence in [ital pp] and [ital p[bar p]] interactions.
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