Eur. Phys. J. C 25, 361-377 (2002)
DOI: 10.1007/s10052-002-01031-x
A study of inclusive Double-
omeron-Exchange
in
at
GeV
The UA8 Collaboration A. Brandt1, S. Erhan1, A. Kuzucu1, M. Medinnis1, N. Ozdes1, P.E. Schlein1, M.T. Zeyrek1, J.G. Zweizig1, J.B. Cheze2 and J. Zsembery2
1 University of California, Los Angeles, CA 90024, USA
2 Centre d'Etudes Nucleaires-Saclay, 91191 Gif-sur-Yvette, France
(Received: 6 February 2002 / Published online: 30 August 2002 )
Abstract
We report measurements of the inclusive reaction,
,
in events where either or both the beam-like final-state baryons were
detected in Roman-pot spectrometers and the central system was detected in
the UA2 calorimeter.
A Double-
omeron-Exchange (DPE) analysis of these data and
single diffractive data from the same experiment demonstrates that,
for central masses of a few GeV, the extracted
omeron
omeron-
omeron
omeron
omeron total cross
section,
, exhibits an enhancement which
exceeds factorization expectations by an
order-of-magnitude. This may be a signature for glueball production.
The enhancement is shown to be independent of uncertainties connected with
possible non-universality of the
omeron
omeron
omeron
omeron flux factor.
Based on our analysis, we present DPE cross section predictions,
for unit (1 mb)
omeron
omeron
omeron
omeron
omeron-
omeron
omeron
omeron
omeron
omeron
omeron total cross section,
at the Tevatron, LHC and the 920 GeV fixed-target experiment, HERA-B.
© Società Italiana di Fisica, Springer-Verlag 2002