Investigation of Neutralino Pair Production in Photon-Photon Collider at ILC

TL;DR

This paper analyzes neutralino pair production via photon-photon collisions at a future linear collider within the MSSM, calculating production rates and angular distributions for various benchmark models, highlighting the process's potential detectability.

Contribution

It provides the first detailed calculation of neutralino pair production in photon-photon collisions at NLO, including all relevant diagrams, for multiple benchmark scenarios in the MSSM.

Findings

Total cross sections up to 1.26 fb for certain neutralino pairs.

Angular distributions vary significantly across benchmark points.

Production rates are promising for future collider detection.

Abstract

Neutralino pair production via photon-photon collisions is analyzed in the context of Minimal Supersymmetric Standard Model at future linear collider. Since photon does not have self coupling, this process is only possible at Next-to-Leading order and all the possible terms are calculated for the photon-photon interaction, including box, triangles and quartic coupling diagrams. Numerical analysis of the production rates for $ \tilde{\chi}^0_1 \tilde{\chi}^0_1$, $ \tilde{\chi}^0_1 \tilde{\chi}^0_2$ and $ \tilde{\chi}^0_2 \tilde{\chi}^0_2$ are presented for four new distinct benchmark models which are presented in the light of LHC8. Angular dependence of each neutralino pairs for the benchmark points are also presented. Total integrated photonic cross section goes up to $1.23\;fb$ and $1.26\;fb$ for the $ \tilde{\chi}^0_1 \tilde{\chi}^0_1$ and $ \tilde{\chi}^0_2 \tilde{\chi}^0_2$ pairs, respectively for the Radiatively driven natural susy benchmark point.