2002/12/31 by B. Pire, L. Szymanowski · 39 citations
Mathematics · Physics and Astronomy · #Amplitude #Distribution (mathematics) #Hadronization #High-Energy Particle Collisions Research #Mathematical analysis #Mathematics #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Representation (politics) #Transverse plane #hep-ph
paper · pdf · doi:10.1016/s0370-2693(03)00134-5
published in Physics Letters B 556(3-4), 129-134 (Elsevier BV) · 9 pages LATEX, 3 .eps figures; final version to be published in Phys Lett. B. Some minor changes and some references added
arxiv created 2003/01/29 · openalex publication_date 2003/02/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We develop an impact representation for the generalized distribution amplitude which describes the exclusive hadronization of a quark–antiquark pair to a pair of mesons. Experiments such as γ∗γ→ππ and γ∗N→ππN′ are shown to probe the transverse size of the hadronization region of the quark–antiquark pair that one can interpret as the transverse overlap of the two emerging mesons. An astonishing feature of this description is that low energy ππ phase shift analysis can be used for understanding some properties of quark hadronization process.