2014/11/03 by Tomas Kasemets, P. J. Mulders, Piet J. Mulders · 19 citations
Physics and Astronomy · #Computer science #High-Energy Particle Collisions Research #Interference (communication) #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Scattering #hep-ph
paper · pdf · doi:10.1103/physrevd.91.014015
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 91(1) (American Physical Society) · 10 pages, 1 figure
arxiv created 2014/11/03 · openalex publication_date 2015/01/13 · arxiv updated 2015/06/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Double-parton scattering (DPS) has become very relevant as a background to interesting analyses performed by the experiments at the LHC. It encodes knowledge of correlations between the proton constituents not accessible in single-parton scattering. Within perturbative QCD DPS is described in terms of partonic subprocesses and double-parton distributions (DPDs). There exists a large number of different DPDs describing the different possible states of two partons inside a proton. They include correlations between the two partons and interferences between the two hard subprocesses. Taking the probability interpretation of the DPDs as a starting point, we derive limits on the interference DPDs and thereby constrain the size of correlations between two partons inside an unpolarized proton.