
CDF Collaboration
Figures
Fig. 1  Distributions versus xi and t: (a) Roman pot acceptance; (b) inclusive diffractive event sample; (c) ratio of dijet to inclusive diffractive events versus xi and (d) versus t. 
Fig. 2  Comparison of diffractive to nondiffractive dijet (a) mean E_{T} and (b) mean eta distributions. 
Fig. 3 
Ratio of diffractive to nondiffractive dijet event rates
as a function of
x (momentum fraction of parton in pbar).
The solid lines are fits to the form
R(x)=R_{o}(x/0.0065)^{r}
for beta<0.5. (The data points of this figure are here. The data points of the R(x) distribution for 0.035< xi <0.095 are here.) 
Fig. 4 
Data beta distribution (points) compared with expectations from
the parton densities of the proton extracted from diffractive deep
inelastic scattering by the H1 Collaboration. The straight line is a fit
to the data of the form beta^{n}.
The lower (upper) boundary of the filled band
represents the data distribution obtained by using only the two leading
jets (up to four jets of E_{T}>5 GeV) in evaluating beta.
The dashed (dotted) lines are expectations from the H1 fit 2 (fit 3).
All the distributions in this figure
are normalized per unit xi.
The systematic uncertainty in the normalization of the data is
+/ 25%. (The data points of this figure are here.) 
References