Prospects for detecting $SU(2)_L$ hidden sector bosons at ILC

TL;DR

This paper explores the potential to detect hidden $SU(2)_L$ gauge bosons at the ILC collider, focusing on their production cross section and background challenges in a dark sector extension of the Standard Model.

Contribution

It provides an analysis of the production cross section of hidden gauge bosons at ILC and discusses the challenges in background suppression for detection.

Findings

Cross section can reach 48 fb at 1300 GeV energy.

Standard Model background is of similar order, complicating detection.

Additional methods are needed to distinguish signals from background.

Abstract

We investigate the possibility of detecting hidden vector gauge bosons at ILC linear collider. The study is performed in the framework of hidden sector extension of Standard Model with 3 degenerate dark gauge bosons. By studying the cross section of pair dark gauge boson with photon at initial state radiation we found that at the energy $\sqrt{s} \approx$ 1300 GeV the cross section can be as large as $48fb$, the same order ($\mathcal{O}(fb)$) with the irreducible background of the Standard Model. Hence more methods needed to be done to eliminate the background for this model.