Neutralino Pair Production at the Photon-Photon Collider for the $\tilde{\tau}$-Coannihilation Scenario

TL;DR

This paper investigates neutralino pair production via photon-photon collisions at the ILC within the MSSM framework, focusing on the $ ilde{t}$-coannihilation scenario to assess dark matter search potential.

Contribution

It provides detailed calculations of neutralino pair production cross sections at the ILC, considering all one-loop diagrams and specific benchmark models aligned with LHC8 data.

Findings

Calculated production cross sections for neutralino pairs.

Analyzed distributions of key observables.

Highlighted ILC's potential in dark matter searches.

Abstract

Supersymmetry (SUSY) is a theory that gives an explanation for the strong and electroweak interactions from the grand unification scale down to the weak scale. The search for supersymmetric particles still continues at full speed at the LHC without success. The main tasks at the ILC is complementing the LHC result and also search for new physics. In this study, the neutralino pair production via photon-photon collision is studied for the $\tilde{t}$-coannihilation scenario in the context of MSSM at the ILC. In the calculation, all the possible one-loop diagrams are taken into account for the photon-photon interaction. We present the production cross section and distribution of various observables for the lightest and next-to-lightest neutralino pairs for benchmark models which are specifically presented in the light of LHC8 data analysis, employing these benchmark models for neutralino pair production could show the potential of the ILC concerning the dark matter searches in supersymmetry.