Investigation of resonance states in the glueball‐enhanced channel π−p→φφη

In this paper we discuss the striking evidence for the gT(2010), gT’(2300) and gT (2340) IGJpC=0+2++ resonance which comprise virtually all of the π−p→φφη. The complete breakdown of the expected OZI suppression, and the striking differences of these states from conventional states and background in other channels has so far only been successfully explained by assuming they are produced by 1‐3 2++ glueballs. The comparison with J/ψ radiative decay results is made. The forthcoming search for an exotic JPC glueball is discussed.