https://doi.org/10.1140/epjc/s10052-019-7120-x
Regular Article - Theoretical Physics
The fusion of hard and soft Pomerons: 3-jet diffractive production
1
Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, UK
2
Kurchatov National Research Centre, Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia
3
St. Petersburg State University, St. Petersburg, Russia
* e-mail: a.d.martin@durham.ac.uk
Received:
24
May
2019
Accepted:
8
July
2019
Published online:
18
July
2019
We consider the central exclusive production of high 
jets 
. In particular we study the possible contamination of the purely exclusive signal by semi-exclusive production where no other secondaries are emitted in one hemisphere, between the highest dijet and the recoil proton, while in the other hemisphere a third jet, plus possibly additional hadron activity, is allowed, but still separated from the incoming proton by a large rapidity gap. This process arising from the fusion of a hard and a soft Pomeron has not been considered before. It turns out that it gives a negligible contribution. The calculation involves a careful treatment of the QCD colour structure of the amplitudes.
© The Author(s), 2019
