Identification of new physics and general WIMP search at the ILC

TL;DR

This paper explores the potential of the International Linear Collider to identify new physics models involving WIMP dark matter by analyzing specific production processes and angular distributions.

Contribution

It introduces a novel method using Monte Carlo simulations to analyze WIMP-related processes and highlights the importance of angular distributions in model identification.

Findings

The production angle distribution of charged particles is a key discriminant.

Monte Carlo simulations effectively model WIMP production processes.

Angular analysis enhances the identification of TeV physics models.

Abstract

We investigate the possibility of the identification of TeV physics models including WIMP dark matter at the International Linear Collider. Many TeV physics models contain a WIMP dark matter (chi^0) and charged new particle (chi^{pm}) which interacts with the WIMP dark matter via the vertex chi^{pm} chi^0 W^{mp}. Through Monte Carlo simulations, we study the process, e^+e^- to chi^+ chi^- to chi^0 chi^0 W^+ W^-, because the signal contains the fruitful information of the model. We show that, in particular, the distribution of the chi^{pm} production angle is the powerful probe in the TeV physics model search.