About the applicability of the eikonal approximation to single charged pion photoproduction at high energies

Journal Article · Mon Dec 17 00:00:00 EST 1973 · Nuclear Physics. B

DOI:https://doi.org/10.1016/0550-3213(73)90008-4· OSTI ID:4376756

Ernst, W.

Generalized ladder diagrams of a field theoretical model for single charged pion photo-production are investigated at high energies. It is shown that the propagator approximation, a key approximation for the eikonalization, does not preserve the high-energy limit of the sum over the generalized ladder graphs. Finally, this result is in contrast to that found recently in the case of pure hadronic elastic 2-2 scattering amplitudes.

• Research Organization: Univ. of Bielefeld, Ger.
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-013885
• OSTI ID: 4376756
• Journal Information: Nuclear Physics. B, Vol. 66, Issue C; Other Information: Orig. Receipt Date: 30-JUN-74; ISSN 0550-3213
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

N64220* -Physics (High Energy)-Particle Interactions & Properties (Theoretical)-Electromagnetic
*EIKONAL APPROXIMATION- PHOTOPRODUCTION
*PIONS- PHOTOPRODUCTION
LADDER APPROXIMATION
QUANTUM FIELD THEORY
SCATTERING AMPLITUDES