Document Detail


Color entanglement for azimuthal asymmetries in the drell-yan process.
MedLine Citation:
PMID:  24655247     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In 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.
Authors:
M G A Buffing; P J Mulders
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Publication Detail:
Type:  Journal Article     Date:  2014-03-03
Journal Detail:
Title:  Physical review letters     Volume:  112     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-03-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  092002     Citation Subset:  IM    
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