How to detect the lightest glueball

We suggest a procedure of the lightest glueball detection in a head-on collision of photons whose center-of-mass energy is in the range \(1.3-2\) GeV. Recent evidence for the scattering of light by light in experiments at the Large Hadron Collider is used as a phenomenological basis of our suggestion. With this evidence, the cross section of the lightest glueball creation in the \(\gamma\gamma\) collisions is estimated to be \(\sim 60\,\)nb. The predominant mode of the lightest glueball decay, predicted from the gauge/gravity duality, proves to be the decay into two neutral vector mesons \(\rho^0\rho^0\). Because \(\rho^0\) decays into \(\pi^+\pi^-\), a drastic increase in the \(\pi^+\pi^-\pi^+\pi^-\) yield is expected as the center-of-mass energy of the colliding photons approaches the value of the lightest glueball mass. This fact may be regarded as the unique signature of the lightest glueball detection.