2005/07/31 by J. -M. Laget, J. M. Laget
Physics and Astronomy · #Amplitude #Hadron #High-Energy Particle Collisions Research #Meson #Momentum (technical analysis) #Momentum transfer #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Phase space #Physics #Position and momentum space #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #Scattering amplitude #nucl-th
paper · pdf · doi:10.1103/physrevc.73.044003
15 pages; 11 figures During the review process of the paper, the following changes have been implemented: 1- The title has been changed, 2- The abstact and the first paragraph of the introduction have been rephrased for consistency; 3- Figure 10 has been added; 4- The Appedix has been considerably expanded: it gives the full expressions of the elementary photoproduction amplitudes in terms of Pauli spinors and matrices
arxiv created 2006/02/24 · openalex publication_date 2006/04/10 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Exclusive reactions induced at high momentum transfer in few body systems provide us with an original way to study the production and propagation of hadrons in cold nuclear matter. In very well-defined parts of the phase space, the reaction amplitude develops a logarithmic singularity. It is on solid ground since it depends on only on-shell elementary amplitudes and on low momentum components of the nuclear wave function. This is the best window for studying the propagation of exotic configurations of hadrons such as the onset of color transparency. It may appear earlier in meson-photoproduction reactions, more particularly in the strange sector, than in the more classical quasi-elastic scattering of electrons. More generally, those reactions provide us with the best tool to determine the cross section of the scattering of various hadrons (strange particles, vector mesons) from the nucleon and to obtain the production of possible exotic states.