A study of the centrally produced system in pp interactions at 450 GeV/c

The reaction pp ! pfps(K + K K + K ) in which the K + K K + K system is centrally produced has been studied at 450 GeV/c. production has been found to dominate this reaction and is compatible with being produced by double Pomeron exchange. An angular analysis of the system favours J PC =2 ++ and its dPT dependence is similar to that observed for glueball candidates.