Searching for dark matter via mono-$Z$ boson production at the ILC

Abstract

High energy colliders provide a new unique way to determine the microscopic properties of the dark matter (DM). Weakly interacting massive particles (WIMPs) are widely considered as one of the best DM candidates. It is usually assumed that the WIMP couples to the SM sector through its interactions with quarks and leptons. In this paper, we investigate the DM pair production associated with a $Z$ boson in an effective field theory framework at the International Linear Collider (ILC), which can be used to study the interactions between the DM and leptons. For illustrative purposes, we present the integrated and differential cross sections for the $e^{+}{e}^{-}\to \chi \bar{\chi }Z$ process, where the $Z$ boson is radiated from the initial state electron or positron. Meanwhile, we analyze the neutrino pair production in association with a $Z$ boson as the SM background.

arXiv comment12 pages, 5 figures

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Cited by in corpus (7)

• Probing dark matter particles at CEPC
• Testing scalar versus vector dark matter
• Signals of Leptophilic Dark Matter at the ILC
• EFT analysis of leptophilic dark matter at future electron-positron colliders in the mono-photon and mono-$Z$ channels
• New Physics Search at the CEPC: a General Perspective
• Dark-matter-spin effects at future $e^{+}{e}^{-}$ colliders
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