Review talk about glueballs

Craig McNeile has been invited to present a review on the status of lattice results for the masses of glueballs at the Elba 2016 workshop on Forward Physics in Italy.

Glueballs are made out of gluons. They are in principle allowed by the QCD theory (the most important theory for nuclear physics), but there is no experimental evidence for them. There have been many experiments, which have tried to find them, but so far there has been no confirmed signal for glueballs. Better experiments and more accurate theoretical calculations of the glueball masses may help us find this new class of particle.