DOI 10.1007/s100529800752
Diffractive meson production from virtual photons
with odd charge-parity exchange
R. Engel1 - D.Yu. Ivanov2,3 - R. Kirschner2 - L. Szymanowski2,4
1 Deutsches Elektronen-Synchrotron DESY, D-22603 Hamburg,
Germany
2 Naturwissenschaftlich-Theoretisches Zentrum
und Institut für Theoretische Physik, Universität Leipzig
D-04109 Leipzig, Germany
3 Institute of Mathematics, 630090 Novosibirsk, Russia
4 Soltan Institute for Nuclear Studies, Hoza 69, 00-681 Warsaw, Poland
Received: 30 July 1997/ Published online: 20 February 1998
Abstract
We calculate the cross section of diffractive charge-parity
C=+1 neutral meson
production in virtual photon proton collision at high energies.
Due to the opposite
C-parities of photon and meson M+
() this process
probes the t-channel C=-1 odderon
exchange which is described here as noninteracting three-gluon
exchange.
Estimates for the cross section of
inelastic diffractive process
are
presented.
The total cross section of diffractive
meson
photoproduction is found to be 47 pb.
The cross sections for the diffractive production of
light mesons (
)in
collisions are of the same order if
the photon virtuality Q2 is m2C.
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