t-channel selection principles for electroproduction of pions

Technical Report · Wed Aug 01 04:00:00 EDT 1973

OSTI ID:4935591

Kramer, G

The relation between the polarization of the virtual photon in the electroproduction of single pions on nucleons and the normality (P(--)/sup j/) of the exchange contribution in the t-channel for high energies is proven and discussed. The relevance of this relation for the reaction gamma p yields pi /sup 0/p is pointed out. and it is shown that it is valid for E/sub gamma = 3 GeV in a Regge pole model with absorptive cuts. (auth)

• Research Organization: Deutsches Elektronen-Synchrotron (DESY), Hamburg (F.R. Germany)
• Sponsoring Organization: Sponsor not identified
• NSA Number: NSA-29-011259
• OSTI ID: 4935591
• Report Number(s): DESY--73-38
• Country of Publication: Germany
• Language: German

Related Subjects

ABSORPTION
CROSS SECTIONS
ELECTRON-NUCLEON INTERACTIONS
ELECTROPRODUCTION
GEV RANGE 01-10
N64220* --Physics (High Energy)--Particle Interactions & Properties (Theoretical)--Electromagnetic
N64250 --Physics (High Energy)-- Particle Interactions & Properties (Theoretical)--Strong (Baryon No. = 0)
PHOTON-PROTON INTERACTIONS
PHOTONS
PHOTOPRODUCTION
PIONS
PIONS NEUTRAL
POLARIZATION
PROTONS
REGGE CUTS
REGGE POLES
SELECTION RULES
VIRTUAL PARTICLES