A study of the omega omega channel produced in central pp interactions at 450 GeV/c

TL;DR

This paper investigates the production of omega omega pairs in proton-proton collisions at 450 GeV/c, revealing new insights into meson states and their spin properties in central production.

Contribution

It presents the first spin analysis of the omega omega channel in central production and identifies new meson states, including the f2(1910) with unique spin projection.

Findings

Evidence for f2(1910) with JPC=2++ and JZ=2

Observation of a state consistent with f4(2300)

Confirmation of the f0(2000) in omega omega final state

Abstract

The reaction pp -> pf (omega omega) ps has been studied at 450 GeV/c and a spin analysis of the omega omega channel has been performed for the first time in central production. Evidence is found for the f2(1910) in the JPC = 2++ wave with spin projection JZ = 2. This is the only state observed in central production with spin projection JZ = 2. Its dPT and phi dependencies are similar to those observed for other glueball candidates. In addition, evidence is found for a state with JPC = 4++ consistent with the f4(2300). The f0(2000), previously observed in the rho rho final state, is confirmed.