Gap between jets at the LHC at next-to-leading order

We will present new calculations of gap between jets processes at the LHC. The gap is described using a BFKL pomeron exchange between two gluons. For the first time, the next-to-leading kernel and impact factor are used that allow to perform a full NLO calculation. The theoretical calculation is compared to recent measurement at the Tevatron and the :HC.