# New Statistical PDFs: Predictions and Tests up to LHC Energies

Abstract : The quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering experimental results. It enables us to improve the description of the data by means of a new determination of the parton distributions. This global next-to-leading order QCD analysis leads to a good description of several structure functions, involving unpolarized parton distributions and helicity distributions, in a broad range of $x$ and $Q^2$ and in terms of a rather small number of free parameters. There are several challenging issues, in particular the behavior of $\bar d(x) / \bar u(x)$ at large $x$, a possible large positive gluon helicity distribution, etc.. The predictions of this theoretical approach will be tested for single-jet production and charge asymmetry in $W^{\pm}$ production in $\bar p p$ and $p p$ collisions up to LHC energies, using recent data and also for forthcoming experimental results.
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Type de document :
Communication dans un congrès
9th International Workshop on Diffraction in High Energy Physics, Sep 2016, Santa Tecla di Acireale, Italy. AIP Conf.Proc., 1819 (1), pp.050003, 2017, 〈10.1063/1.4977155〉

https://hal.archives-ouvertes.fr/hal-01555106
Contributeur : Inspire Hep <>
Soumis le : lundi 3 juillet 2017 - 18:37:01
Dernière modification le : mercredi 13 février 2019 - 07:22:03

### Citation

Jacques Soffer, Claude Bourrely. New Statistical PDFs: Predictions and Tests up to LHC Energies. 9th International Workshop on Diffraction in High Energy Physics, Sep 2016, Santa Tecla di Acireale, Italy. AIP Conf.Proc., 1819 (1), pp.050003, 2017, 〈10.1063/1.4977155〉. 〈hal-01555106〉

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