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 valence diquarks within the nucleon, in the present work we focus on the spin-0(ud)_0,spin-1 (ud)_1 and spin-1 (uu)_1 valence diquarks into proton. The diquark PDFs obtained are able to use in proton-proton collision simulations.

Keywords

• diquark
• parton distribution function
• ads/qcd
• holography