Daniel T. da Silva, Mario L. L. da Silva, Dimiter Hadjimichef

International Journal of Modern Physics: Conference Series

01/01/2017

Abstract

In the last years many exotic states have been identified in several colliders around the world. One of the exotic states provided in QCD is the glueball. Using a non-relativistic gluon bound-state model, we compute [Formula: see text], where [Formula: see text] is a pseudoscalar, tensor, or scalar digluon. For the starting from the amplitudes we considers the process [Formula: see text] at threshold, where the amplitudes are obtained in perturbative QCD at lowest order by deriving them from QED calculation and the [Formula: see text]s are massive constituent gluons. In this calculation the unknown parameters of the model, such as the digluon wave function, are obtained using measured values of [Formula: see text]. Our theorical results are compared with the present experimental limits for the various glueballs candidates.

10.1142/s2010194517600680