publication . Article . Preprint . 2014

Color entanglement for azimuthal asymmetries in the Drell-Yan process.

Piet J. Mulders; M. G. A. Buffing;
Open Access English
  • Published: 01 Jan 2014 Journal: PHYSICAL REVIEW LETTERS (issn: 0031-9007, Copyright policy)
  • Publisher: AMER PHYSICAL SOC
Abstract
In the resummation of collinear gluons emitted together with active partons from the hadrons in the Drell-Yan process (DY) effects of color entanglement become important when the transverse directions are taken into account. It is then no longer possible to write the cross section as the convolution of two soft correlators and a hard part. We show that the color entanglement introduces additional color factors that must be taken into account in the extraction of transverse momentum dependent parton distribution functions (TMD PDFs) from azimuthal asymmetries. Examples where such effects matter are the extraction of the double Sivers and double Boer-Mulders asymm...
Subjects
arXiv: Nuclear ExperimentHigh Energy Physics::ExperimentHigh Energy Physics::Phenomenology
free text keywords: General Physics and Astronomy, High Energy Physics - Phenomenology, Nuclear Theory, Transverse plane, Particle physics, Parton, Gluon, Resummation, Hadron, Quantum chromodynamics, Drell–Yan process, Physics, Quantum entanglement
Related Organizations
Funded by
EC| QWORK
Project
QWORK
Quantum Chromodynamics at Work
  • Funder: European Commission (EC)
  • Project Code: 320389
  • Funding stream: FP7 | SP2 | ERC
,
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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