Short-range correlations of partons & 3D nucleon structure

Abstract

Abstract. Dynamical breaking of chiral symmetry in QCD is caused by nonperturbative interactions on a scale ρ ∼ 0.3 fm much smaller than the hadronic size R ∼ 1 fm. This has important consequences for the nucleon structure such as the prediction that the transverse momentum distribution of sea quarks is significantly broader than the pT -distribution of valence quarks due to short-range correlations between sea quarks in the nucleon's light-cone wave function.

What binds quarks together at different momentum scales? A conceptual scenario

“…Thus, the vacuum field fluctuations are much shorter than the typical transverse size of the valence-quark state-see [26] for details. These findings are in line with the appearance of DCSB on a scale ∼ 0.3 fm, see, e.g., [27].…”