2010/12/17 by M. Anselmino, M. Boglione, U. D’Alesio +5 · 18 citations
Physics and Astronomy · #Biology #Compass #Deep inelastic scattering #Distribution function #Factorization #Hadron #High-Energy Particle Collisions Research #Inelastic scattering #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Position and momentum space #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Scattering #Space (punctuation) #Transverse plane #hep-ph
paper · pdf · doi:10.1088/1742-6596/295/1/012062
published in Journal of Physics Conference Series 295, 012062 (IOP Publishing) · Talk delivered by M. Boglione at SPIN2010, September 27-October 2, 2010, Juelich, Germany. Left panel of Fig. 5 replaced
arxiv created 2010/12/17 · openalex publication_date 2011/05/01 · arxiv updated 2015/05/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Polarised Semi-Inclusive Deep Inelastic Scattering (SIDIS) processes, ℓ ( S ℓ ) p ( S ) → ℓ h X allow to study Transverse Momentum Dependent partonic distributions (TMDs), which reveal a non trivial three dimensional internal structure of the hadrons in momentum space. One of the most representative of the TMDs is the so-called Sivers function that describes the distribution of unpolarized quarks inside a transversely polarized proton. We present a novel extraction of the Sivers distribution functions from the most recent experimental data of HERMES and COMPASS experiments. Using suitable parametrizations, within the TMD factorization scheme, and a simple fitting strategy, we also perform a preliminary exploration of the role of the proton sea quarks.