237 research outputs found
Polarization effects in proton-proton collisions within the Standard Model and beyond
Get PDFBoer, D. [Promotor]Mulders, P.J.G. [Promotor
Single spin asymmetries and gauge invariance in hard scattering processes
Get PDFMulders, P.J.G. [Promotor
Signatures of gluon saturation in high energy scattering
Get PDFMulders, P.J.G. [Promotor]Boer, D. [Copromotor
Flavor and evolution effects in TMD phenomenology: Manifestation of hadron structure in high-energy scattering processes
Get PDFMulders, P.J.G. [Promotor]Radici, M. [Copromotor
Effects of instanton interactions on the phases of quark matter
Get PDFMulders, P.J.G. [Promotor]Boer, D. [Copromotor
Hunting for Chameleons, a Possible Candidate for Dark Energy
Get PDFIannuzzi, D. [Promotor]Mulders, P.J.G. [Promotor
Color Entanglement for Azimuthal Asymmetries in the Drell-Yan Process
No full textIn the resummation of collinear gluons emitted together with active partons from the hadrons in the Drell-Yan process, 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 from azimuthal asymmetries. Examples where such effects matter are the extractions of the double Sivers and double Boer-Mulders asymmetries. Furthermore, we will argue why this color entanglement is a basic ingredient already in the tree-level description of azimuthal asymmetries. © 2014 American Physical Society
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