A study of the centrally produced phiphi system in pp interactions at 450 GeV/c
The WA102 Collaboration, D. Barberis et al
TL;DR
This study investigates the centrally produced phi phi system in proton-proton interactions at 450 GeV/c, revealing dominance of phi phi production likely via double Pomeron exchange and suggesting a possible glueball candidate.
Contribution
It provides the first detailed analysis of phi phi production at this energy, supporting the double Pomeron exchange mechanism and exploring the system's quantum numbers.
Findings
Phi phi production dominates the reaction
Production mechanism consistent with double Pomeron exchange
Angular analysis favors JPC = 2++ assignment
Abstract
The reaction pp to pfps(K+K-K+K-) in which the K+K-K+K- system is centrally produced has been studied at 450 GeV/c. Phi phi production has been found to dominate this reaction and is compatible with being produced by double Pomeron exchange. An angular analysis of the phi phi system favours JPC = 2++ and its dPT dependence is similar to that observed for glueball candidates.
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