(a) The energy distribution in the FPC. The data (full dots) are compared to the expectations from the PYTHIA MC, normalised to the data. (b) The x
distribution in the LPS. The data (open circles) are compared to the expectations from the PYTHIA MC, normalised to the data for x
< 0.95. The extracted fraction of proton-dissociation events, from the FPC data (dots) and from the LPS data (open circles), as a function of (c) Q2, (d) W and (e) |t|. All events were selected in the ρ0 mass window (0.65–1.1 GeV). The dotted line in (c) and (d) represents a fit of a constant to the proton-dissociation fraction.