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arXiv · 1307.0146

Constraints on polarized parton distributions from open charm and W production data

Emanuele Roberto Nocera
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Abstract

We study the impact of new open charm muoproduction data from COMPASS and preliminary W production data from STAR on NNPDFpol1.0, the first unbiased set of polarized parton distributions recently delivered by the NNPDF Collaboration and based on inclusive Deep-Inelastic Scattering data only. The information contained in the new data sets is incorporated in our Monte Carlo parton determination via Bayesian reweighting, a method based on statistical inference which avoids the need for a global refitting. We explicitly show to which extent COMPASS and STAR data can improve our knowledge of gluon and antiquark polarized parton distributions respectively.

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Emanuele Roberto Nocera. 2013-06-29. Constraints on polarized parton distributions from open charm and W production data. https://arxiv.org/abs/1307.0146

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