The top threshold effect in the $\gamma \gamma$ production at the LHC

Shashikant R. Dugad, Pankaj Jain, Subhadip Mitra +2

We compute the top quark threshold contributions to the $\gamma \gamma$ production at the LHC. They appear when the invariant mass of the photon pair, $M_{\gamma \gamma }$ just exceeds two times the mass…