A study of the eta etaprime and etaprime etaprime channels produced in central pp interactions at 450 GeV/c

Details A study of the eta etaprime and etaprime etaprime channels produced in central pp interactions at 450 GeV/c A study of the eta etaprime and etaprime etaprime channels produced in central pp interactions at 450 GeV/c

1999-11-29

arxiv.org/abs/hep-ex/9911041v1

Phys.Lett.B471:429-434,2000

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, Latex, 4 Figures

Scientific paper

10.1016/S0370-2693(99)01392-1

The reactions pp -> pf (X0) ps, where X0 is observed decaying to eta etaprime and etaprime etaprime, have been studied at 450 GeV/c. This is the first time that these channels have been observed in central production and only the second time that the etaprime etaprime channel has been observed in any production mechanism. In the eta etaprime channel there is evidence for the f0(1500) and a peak at 1.95 GeV. The etaprime etaprime channel shows a peak at threshold which is compatible with having JPC = 2++ and spin projection JZ = 0.

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