Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série IPN-X
Domaines hep-ph
Date Mardi 21 Fevrier 2017
Heure 11:00
Institut CPHT
Salle Salle de conférences, bât. 6
Nom de l'orateur Beuf
Prenom de l'orateur Guillaume
Addresse email de l'orateur
Institution de l'orateur ECT*, Trento
Titre Full NLO corrections for DIS structure functions in the dipole factorization formalism
Résumé In the regime of low Bjorken x, Deep Inelastic Scattering (DIS) is better described within the dipole factorization formalism, which allows to take into account the nonlinear effects of gluon saturation as well as the resummation of the high-energy leading logarithms (LL). So far, phenomenological studies have been performed successfully at LO in the dipole factorization, with high-energy LL resummation, in the context of DIS at HERA and pp, pA and AA collisions at the LHC and RHIC. However, in order to reach a decent precision for the theory, NLO corrections should be included, as well as high-energy NLL resummations. This is important not only to fully benefit from the precision of HERA and LHC data, but also in prevision of future electron-proton and/or electron-nucleus colliders. In this talk, I will present a full calculation of the (fixed order) NLO corrections to DIS structure functions on a dense target in the dipole factorization picture. In earlier studies, only one part of the NLO corrections has been calculated, the one corresponding to a quark-antiquark-gluon Fock state interacting with the target. By contrast, I will present the first direct calculation of the other part of NLO corrections, for which a quark-antiquark Fock state interacts with the target. I will also discuss issues related with the combination of the two pieces, with a consistent treatment of UV divergences.
Numéro de preprint arXiv
Fichiers attachés
  • 2017-02-21_slides.pdf (583718 bytes) OPEN

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