Eur. Phys. J. C 21, 521-529 (2001)
Probabilities of rapidity gaps in high energy interactionsA.B. Kaidalov1, 2, V.A. Khoze1, A.D. Martin1 and M.G. Ryskin1, 3
1 Department of Physics and Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, UK
2 The Institute for Theoretical and Experimental Physics (ITEP), 117259 Moscow, Russia
3 Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia
(Received: 16 May 2001 / Revised version: 12 July 2001 / Published online: 10 August 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )
We show that high energy hadronic reactions which contain a rapidity gap and a hard subprocess have a specific dependence on the kinematic variables, which results in a characteristic behaviour of the survival probability of the gap. We incorporate this mechanism in a two-channel eikonal model to make an essentially parameter-free estimate of diffractive dijet production at the Tevatron, given the diffractive structure functions measured at HERA. The estimates are in surprising agreement with the measurements of the CDF collaboration. We briefly discuss the application of the model to other hard processes with rapidity gaps.
© Società Italiana di Fisica, Springer-Verlag 2001