PION-EXCHANGE CURRENTS IN PHOTOPRODUCTION OF BARYON RESONANCES

Authors
ROBSON D
Citation
D. Robson, PION-EXCHANGE CURRENTS IN PHOTOPRODUCTION OF BARYON RESONANCES, Nuclear physics. A, 560(1), 1993, pp. 389-398
Citations number
22
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
560
Issue
1
Year of publication
1993
Pages
389 - 398
Database
ISI
SICI code
0375-9474(1993)560:1<389:PCIPOB>2.0.ZU;2-I
Abstract
The need for pion-exchange currents consistent with quark models which respect chiral symmetry is presented. Applications to photopion produ ction via the DELTA(1232) and several N resonances indicate significa nt contribution from exchange currents. Possible improvements to the t heory are discussed.