The anomalous gamma -> pi{sup +} pi{sup 0} pi{sup -} form factor and the light-quark mass functions at low momenta

Conference · Fri Dec 01 00:00:00 EST 2000

OSTI ID:804118

Klabucar, Dubravko; Bistrovic, Bojan

The gamma -> 3 pi form factor was calculated in a simple-minded constituent model with a constant quark mass parameter, as well as in the Schwinger-Dyson approach. The comparison of these and various other theoretical results on this anomalous process, as well as the scarce already available data (hopefully to be supplemented by more accurate CEBAF data), seem to favor Schwinger-Dyson modeling which would yield relatively small low-momentum values of the constituent (dynamically dressed) quark mass function.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 804118
• Report Number(s): JLAB-PHY-00-55; DOE/ER/40150-2333; hep-ph/0012273; TRN: US0300625
• Resource Relation: Conference: Proceedings of the Mini-Workshop ''Few-Quark Problems'', Conference location not supplied, Conference dates not supplied; Other Information: Invited talk - Bled Workshops in Physics, Vol. 1, No. 1, p. 41, proceedings of the Mini-Workshop ''Few-Quark Problems'', edited by M. Golli, M. Rosina and S. Sirca; published by DMFA - zaloznistvo, Ljubljana 2000, ISSN 1580-4992.; PBD: 1 Dec 2000
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FORM FACTORS
QUARKS
CEBAF ACCELERATOR