Production of a tensor glueball in the reaction $\gamma \gamma \to G_2{\pi }^0$ at large momentum transfer

Abstract

We study the production of a tensor glueball in the reaction $\gamma \gamma \to G_2{\pi }^0$. We compute the cross section at higher momentum transfer using the collinear factorisation approach. We find that for a value of the tensor gluon coupling of $f_g^T\sim 100$~MeV, the cross section can be measured in the near future by the Belle~II experiment.

Comments: 7 pages, 5 figures