Gaps between jets at hadron colliders in the next-to-leading BFKL framework

Understand

We investigate diffractive events in hadron-hadron collisions, in which two jets are produced and separated by a large rapidity gap.

• In perturbative QCD, the hard color-singlet object exchanged in the t-channel, and responsible for the rapidity gap, is the Balitsky-Fadin-Kuraev-Lipatov (BFKL) Pomeron.
• We perform a phenomenological study including the corrections due to next-to-leading logarithms (NLL).
• Using a renormalisation-group improved NLL kernel, we show that the BFKL predictions are in good agreement with the Tevatron data, and present predictions which could be tested at the LHC.