$\gamma \gamma \to t\bar{c}+c\bar{t}$ in a supersymmetric theory with an explicit R-parity violation

Abstract

We studied the process $\gamma \gamma \to t\bar{c}+c\bar{t}$ in a $R_p$ violating supersymmetric Model with the effects from both B- and L-violating interactions. The calculation shows that it is possible to detect a $R_p$ violating signal at the Next Linear Collider. Information about the B-violating interaction in this model could be obtained under very clean background, if we take the present upper bounds for the parameters in the supersymmetric $\text{/}{R}_p$ interactions. Even if we can not detect a signal of $\text{/}{R}_p$ in the experiment, we may get more stringent constraints on the heavy-flavor $\text{/}{R}_p$ couplings.

Comments: 16 pages, 6 figures