Title
Towards a first estimate of the gluon Sivers function from <tex>$A_{N}$</tex> data in pp collisions at RHIC Towards a first estimate of the gluon Sivers function from <tex>$A_{N}$</tex> data in pp collisions at RHIC
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2015) :9 , 18 p.
ISSN
1126-6708
1029-8479
1029-8479
Article Reference
119
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Within a generalized parton model approach, with inclusion of spin and intrinsic transverse momentum effects, we show how the latest, highly precise, midrapidity data on the transverse single spin asymmetry measured in pp -> pi(0) X by the PHENIX Collaboration at RHIC [1], can be used to get a first estimate on the still poorly known gluon Sivers distribution. To this end we also adopt the present information on the quark Sivers functions, as extracted from semi-inclusive deeply inelastic scattering data. This analysis updates a previous study by some of us where a first bound on this distribution was obtained [2].
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/fa2f8c/128727.pdf
Handle