2012/05/22 by Giovanni Salmè, Giovanni Salme', Emanuele Pace +1 · 4 citations
Physics and Astronomy · #Ansatz #Covariant transformation #Hadron #Particle physics theoretical and experimental studies #Parton #Phenomenology (philosophy) #Pion #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Quark #Quark model #hep-ph
paper · pdf · doi:10.1007/s00601-012-0457-4
published in Few-Body Systems 54(5-6), 769-777 (Springer Science+Business Media) · 12 pages and 3 figures. Accepted for publication as a regular paper in "Few-Body Systems", and based on a talk delivered at the Workshop on "Critical Stability" Erice, Italy on October 9-15, 2011
openalex publication_date 2012/05/22 · arxiv created 2012/08/07 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
An overview of the vector and tensor Generalized Parton Distributions for a charged pion is presented. Such observables, belonging to the set of quantities fundamental for a detailed investigation of the hadronic inner dynamics, have been evaluated within a fully covariant Constituent Quark Model, based on a proper Ansatz of the pion Bethe-Salpeter Amplitude and the Mandelstam formula for matrix elements of operators acting on relativistic composite systems. Given the very encouraging results already obtained for the vector distribution of a charged pion, the model has been extended to the tensor one, and some preliminary calculations will be illustrated.