Photoexcitation of baryon resonances

Authors
Citation
B. Krusche, Photoexcitation of baryon resonances, CZEC J PHYS, 50, 2000, pp. 24-48
Citations number
49
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
CZECHOSLOVAK JOURNAL OF PHYSICS
ISSN journal
0011-4626 → ACNP
Volume
50
Year of publication
2000
Supplement
4
Pages
24 - 48
Database
ISI
SICI code
0011-4626(2000)50:<24:POBR>2.0.ZU;2-Z
Abstract
The study of baryon resonances via meson photoproduction reactions on the f ree proton, nucleons bound in light nuclei and in the nuclear medium is dis cussed. Special emphasis is laid on the production of neutral mesons which due to the suppression of non-resonant backgrounds are particularly well su ited for the study of excited states of the nucleon. Experiments carried ou t during the last ten years with the TAPS-detector at the Mainz MAMI accele rator have contributed very significantly to the detailed investigation of the four lowest lying baryon resonances the P-33(1232), the P-11(1440), the D-13(1520) and the S-11(1535). Future experiments with TAPS at the ELSA ac celerator have a large potential for the investigation of higher lying reso nances via many different decay channels.