Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-08-03
Phys.Rev.D81:016013,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Typos fixed, Figures 2,9 and 10 added, matches version published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.81.016013
We propose a simple method for incorporating correlations into the impact parameter space description of multiple (semi-)hard partonic collisions in high energy hadron-hadron scattering. The perturbative QCD input is the standard factorization theorem for inclusive dijet production with a lower cutoff on transverse momentum. The width of the transverse distribution of hard partons is fixed by parameterizations of the two-gluon form factor. We then reconstruct the hard contribution to the total inelastic profile function and obtain corrections due to correlations to the more commonly used eikonal description. Estimates of the size of double correlation corrections are based on the rate of double collisions measured at the Tevatron. We find that, if typical values for the lower transverse momentum cutoff are used in the calculation of the inclusive hard dijet cross section, then the correlation corrections are necessary for maintaining consistency with expectations for the total inelastic proton-proton cross section at LHC energies.
Rogers Ted C.
Strikman Mark
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