A prospects paper argues that 'cascade' decays connecting glueball and hybrid candidates, especially through eta-prime final states, offer a promising route to finally identify QCD glueballs.
A spin analysis of the 4pi channels produced in central pp interactions at 450 GeV/c
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abstract
The reactions pp -> pf (X0) ps, where X0 is observed decaying to pi0pi0pi0pi0, pi+pi-pi0pi0 and pi+pi-pi+pi-, have been studied at 450 GeV/c. There is evidence for an a2(1320)pi decay mode of the eta2(1645) and eta2(1870) in the pi+pi-pi0pi0 and pi+pi-pi+pi- final states. The f2(1950) is consistent with being a single resonance with a dominant f2(1270)pipi decay mode. The f0(1370) is found to decay dominantly to rho-rho while the f0(1500) is found to decay to rho-rho and sigma-sigma.
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Prospects for new glueballs and exotics searches
A prospects paper argues that 'cascade' decays connecting glueball and hybrid candidates, especially through eta-prime final states, offer a promising route to finally identify QCD glueballs.