Following prior analysis for measured pp elastic differential cross section,
the impact parameter representation in terms of profile functions is calculated
from two different parameterizations on single diffractive dissociation data.
The derivative of this quantity with respect to the collision energy squared s
measures the growth rate of the reaction's blackness. Its distribution in
impact parameter space allows detailed insight into the growth pattern of the
total cross section and the approaching unitarity limit. Comparing the results
with the elastic case, the different mechanisms of unitarization of the two
parametrizations are discussed.Comment: 8 pages, 5 figures, accepted for publication EPJA, revised versio