Nuclear and Particle Physics, Astrophysics and Cosmology, T-2

Correlations in Double Parton Scattering

Wouter Waalewijn
UCSD

Double parton scattering is the process where two partonic collisions take place between the same colliding hadrons. It is a background for new physics searches at the LHC. I will discuss the formalism for double parton scattering that I helped develop. The initial state is described by double parton distribution functions, and offers a window into diparton correlations in the proton. I will discuss its renormalization group evolution, which implies that color correlations and parton-exchange interference contributions are Sudakov suppressed at high energies. In addition, I will provide an estimate of the diparton correlations using a bag model of the proton.

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