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

TL;DR

This paper investigates the potential to detect R-parity violating signals in supersymmetric models through gamma-gamma collisions producing top-charm pairs, highlighting the possibility of observing or constraining such interactions at future colliders.

Contribution

It provides a detailed calculation of the gamma-gamma to top-charm process in R-parity violating supersymmetry, assessing detection prospects and constraints at the Next Linear Collider.

Findings

Potential detection of R-parity violation signals at collider

Constraints on B-violating couplings from non-observation

Possibility to improve bounds on heavy-flavor R-parity violating interactions

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 $\rlap/ R_{p}$ interactions. Even if we can not detect a signal of $\rlap/R_{p}$ in the experiment, we may get more stringent constraints on the heavy-flavor $\rlap/R_{p}$ couplings.