Dimension-six anomalous $tq\gamma$ couplings in $\gamma \gamma$ collision at the LHC

Understand

We have investigated the flavor changing top quark physics on the dimension-six anomalous $tq\gamma$ ($q=u,c$) couplings through the process $pp\to p\gamma \gamma p\to p t\bar{q}p$ at the LHC by considering different forward detector acceptances.

• In this paper, we have taken into account and examine the effects of top quark decay.
• The sensitivity bounds on the anomalous couplings and, $t\to q\gamma$ branching ratio have been obtained at the $95\%$ confidence level for the effective lagrangian approach.
• Besides, we have investigated the effect of the anomalous couplings on single top quark spin asymmetry.