Eur. Phys. J. C 20, 93-103
Rescattering effects in photoproductionA.V. Anisovich1 and U. Thoma2
1 Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia
2 Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
(Received: 14 September 2000 / Revised version: 1 February 2001 / Published online: 12 April 2001 -© Springer-Verlag 2001)
We calculate the contribution from rescattering of K+K- pairs produced by photoproduction of to the photoproduction of mesons. The photoproduction of mesons is presently a hot topic due to the possibility that an intrinsic hidden strangeness contribution in the nucleon flavor wave function may be revealed in this process, and due to the possibility that the structure of scalar mesons could be accessible experimentally via S-P interference in the K+K- system. We show that rescattering makes an important contribution to photoproduction which could -if neglected -mislead the interpretation of the forthcoming high precision data.
© Società Italiana di Fisica, Springer-Verlag 2001