1999/03/01 by M. Post, Post, M., W. Peters +3
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9903002
10 pages, 7 figures, LaTex, Talk given at the 'XXXV International Winter Meeting on Nuclear Physics', Jan 25 - 29 1999, Bormio
arxiv created 1999/03/01 · openalex publication_date 1999/03/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In the last years much work has been done to learn about the properties of the ρ-meson in nuclear matter. In a calculation of the in-medium spectralfunction of the ρ we find that it is strongly modified by baryonic resonances, especially the D13(1520), through its coupling to resonance-hole states. In order to test the predictions of a model for the in-medium properties of the ρ-meson so far mostly heavy-ion collision have been used. We argue that the coherent photoproduction of ρ-mesons yields additional information about the nature of the medium modification. It can be shown that the production amplitude is sensitive on the momentum dependence of the ρ-selfenergy. This can be used to distinguish experimentally between various models for the ρ in matter.