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Gluon-Glueball Duality and Glueball Searches by Nussinov, Shmuel; Shrock, Robert is a scholarly article available to read on EtoBox.

What is Gluon-Glueball Duality and Glueball Searches about?

We discuss a notion of gluon-glueball duality analogous to quark-hadron duality. We apply this idea to the radiative decay of heavy orthoquarkonium, $Q\bar Q \to \gamma g g$, which has been used to search for glueballs. The duality is first introduced in two simplified contexts: (i) a hypothetical version of QCD without any light quarks and (ii) QCD in the large-$N_c$ limit. We then discuss how an approximate form of this duality could hold in real QCD, based on a hierarchy of time scales in the temporal evolution of the $gg$ subsystem in radiative orthoquarkonium decay. We apply this notion of gluon-glueball duality to suggest a method that could be useful in experimental searches for glueballs.

Author

Nussinov, Shmuel; Shrock, Robert

Published

2009

Language

EN