Low-energy photoproduction of -mesonsJ. Barth1, W. Braun1, J. Ernst2, K.-H. Glander1, J. Hannappel1, N. Jöpen1, F.J. Klein1, F. Klein1, H. Kalinowsky2, E. Klempt2, R. Lawall1, J. Link2, D. Menze1, W. Neuerburg1, M. Ostrick1, E. Paul1, H. van Pee2, I. Schulday1, W.J. Schwille1, B. Wiegers1, F.W. Wieland1, J. Wißkirchen1 and C. Wu1
1 Physikalisches Institut, Bonn University, Bonn, Germany
2 Helmholtz-Institut für Strahlen- und Kernphysik, Bonn University, Bonn, Germany
(Received: 12 December 2002 / Published online: 20 May 2003)
Photoproduction of -vector-mesons has been studied from reaction threshold up to W=2.4 GeV with the SAPHIR spectrometer at the Bonn electron stretcher ring ELSA. Total cross-sections, differential cross-sections and decay angular distributions were measured. We find evidence for strong non-diffractive contributions to photoproduction.
14.40.Cs - Other mesons with S=C=0, mass < 2.5 GeV.
© Società Italiana di Fisica, Springer-Verlag 2003