# Towards a first estimate of the gluon Sivers function from AN data in pp collisions at RHIC

@article{DAlesio2015TowardsAF,
title={Towards a first estimate of the gluon Sivers function from AN data in pp collisions at RHIC},
author={Umberto D’Alesio and Francesco Murgia and Cristian Pisano},
journal={Journal of High Energy Physics},
year={2015},
volume={2015},
pages={1-18}
}
• Published 9 June 2015
• Physics
• Journal of High Energy Physics
A bstractWithin 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 → π0X 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…
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