Parton Distribution Functions for diquarks based on an AdS/QCD quark-diquark nucleon model

Abstract

We present a phenomenological unpolarized Parton Distribution Functions for diquarks based on a soft-wall light front AdS/QCD quark-diquark nucleon model. From a probed model consistent with the Drewll-Yan-West relation and quark counting rule, we have performed a fit of some free parameters using known phenomenological quark PDF data. The model considers the entire set of possible diquarks within the nucleon valence, in the present work we focus on the spin-0 ud0, spin-1 ud1 and spin-1 uu1 diquarks into the valence of protons. The diquark PDFs obtained are able to used in proton-proton collision simulations.