2009/01/20 by Sergio Scopetta, S. Scopetta
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.79.025207
published as Phys.Rev.C79:025207,2009 · 24 pages, 8 figures
arxiv created 2009/01/20 · openalex publication_date 2009/02/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The measurement of nuclear generalized parton distributions (GPDs) will represent a valuable tool to understanding the structure of bound nucleons in the nuclear medium, as well as the role of non-nucleonic degrees of freedom in the phenomenology of hard scattering off nuclei. By using a realistic microscopic approach for the evaluation of GPDs of 3He, it will be shown that conventional nuclear effects, such as isospin and binding ones, or the uncertainty related to the use of a given nucleon-nucleon potential, are rather bigger than in the forward case. These findings suggest that unless great attention is paid to not inferring the properties of nuclear GPDs from those of nuclear parton distributions, the conventional nuclear effects can be easily mistaken for exotic ones. It is stressed therefore that 3He, for which the best realistic calculations are possible, represents a unique target for discriminating between conventional and exotic effects. The complementary information which could be obtained by using a 3H target is also addressed.