Pseudoscalar glueball mass: a window on three-gluon interactions

E. V. Souza, M. N. Ferreira, A. C. Aguilar +3

In pure-glue QCD, gluon-gluon scattering in the $J^{PC}=0^{-+}$ channel is described by a very simple equation, especially if one considers just the leading contribution to the sca…