6533b7d0fe1ef96bd125b847

RESEARCH PRODUCT

Double parton correlations in Light-Front constituent quark models

Sergio ScopettaMarco TrainiVicente VentoMatteo Rinaldi

subject

QuarkQuantum chromodynamicsPhysicsParticle physicsValence (chemistry)Nuclear TheoryPhysicsQC1-999Nuclear TheoryFOS: Physical sciencesConstituent quarkPartonCovarianceNuclear Theory (nucl-th)Physics and Astronomy (all)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Distribution functionHomogeneous spaceNuclear Experiment

description

Double parton distribution functions (dPDF) represent a tool to explore the 3D proton structure. They can be measured in high energy proton-proton and proton nucleus collisions and encode information on how partons inside a proton are correlated among each other. dPFDs are studied here in the valence quark region, by means of a constituent quark model, where two particle correlations are present without any additional prescription. This framework allows to understand the dynamical origin of the correlations and to clarify which, among the features of the results, are model independent. Use will be made of a relativistic light-front scheme, able to overcome some drawbacks of the previous calculation. Transverse momentum correlations, due to the exact treatment of the boosts, are predicted and analyzed. The role of spin correlations is also shown. Due to the covariance of the approach, some symmetries of the dPDFs are seen unambigously. For the valence sector, the study of the QCD evolution of the model results, which can be performed safely thanks to the property of good support, has been also completed.

yearjournalcountryeditionlanguage
2014-12-09EPJ Web of Conferences
https://doi.org/10.1051/epjconf/20159002002