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

TL;DR

This paper reports the first partial wave analysis of the eta eta system produced in central proton-proton interactions at 450 GeV/c, identifying signals for several resonances and determining their decay branching fractions.

Contribution

It presents the first partial wave analysis of the eta eta system in this energy regime, revealing specific resonance signals and their decay properties.

Findings

Signals for f0(1500), f0(1710), and f2(2150) observed

Decay branching fractions of these states determined

First partial wave analysis of eta eta in this context

Abstract

The reaction pp -> pf (eta eta) ps has been studied at 450 GeV/c. For the first time a partial wave analysis of the centrally produced eta eta system has been performed. Signals for the f0(1500), f0(1710) and f2(2150) are observed and the decay branching fractions of these states are determined.