How to Detect the Lightest Glueball

We suggest a procedure for detecting the lightest glueball in a head-on collision of photons whose center-of-mass energy in the range 1.3–2 GeV. A phenomenological basis for this suggestion is recent evidence for scattering of light by light in LHC experiments. With this evidence, the cross section of the lightest glueball creation in collisions is estimated to be 60 nb. The predominant mode of the lightest glueball decay, predicted from the gauge/gravity duality, is the decay into . Since the decays into , a drastic increase of the yield is expected as the center-of-mass energy approaches the mass of the lightest glueball. It is this fact which will be the unique signature of the lightest glueball detection.