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DOI 10.1140/epja/i2003-10182-3 Eur. Phys. J. A 21, 161167 (2004)

Summary: DOI 10.1140/epja/i2003-10182-3
Eur. Phys. J. A 21, 161­167 (2004)
Coulomb corrections for coherent electroproduction of vector
mesons: Eikonal approximation
A. Astea
, K. Hencken, and D. Trautmann
Institut f¨ur Physik der Universit¨at Basel, 4056 Basel, Switzerland
Received: 3 October 2003 / Revised version: 2 December 2003 /
Published online: 6 July 2004 ­ c Societ`a Italiana di Fisica / Springer-Verlag 2004
Communicated by A. Sch¨afer
Abstract. Virtual radiative corrections due to the long-range Coulomb forces of heavy nuclei with charge
Z may lead to sizeable corrections to the Born cross-section usually used for lepton-nucleus scattering
processes. An introduction and presentation of the most important issues of the eikonal approximation is
given. We present calculations for forward electroproduction of rho-mesons in a framework suggested by the
VDM (vector dominance model), using the eikonal approximation. It turns out that Coulomb corrections
may become relatively large. Some minor errors in the literature are corrected.
PACS. 25.30.-c Lepton-induced reactions ­ 25.30.Rw Electroproduction reactions ­ 13.40.-f Electromag-
netic processes and properties ­ 25.30.Bf Elastic electron scattering


Source: Aste, Andreas - Institut für Physik, Universität Basel


Collections: Physics