Journal Article

Search for WIMPs at future μ+μ+ colliders

Fukuda, Hajime, Niki, Atsuya, Wei, Shang-Fu, Moroi, Takeo

2024

Overview

A bstract Weakly interacting massive particles (WIMPs) with electroweak charges, such as the wino and the Higgsino, stand out as natural candidates for dark matter in the universe. In this paper, we study the search for WIMPs at future multi-TeV μ + μ + colliders. We investigate both the direct production search of WIMPs through the mono-muon channel and the indirect search through quantum corrections in elastic μ + μ + Møller scattering. We find that the indirect search has an advantage over the direct search with sufficient luminosities, O ab − 1 , and low systematic uncertainties, ≲ 0 . 3 %. This advantage arises due to the weaker mass dependence observed in the indirect search in comparison to direct production methods. The advantage is further enhanced if the initial muon beams are polarized. Specifically, we demonstrate that the indirect search method can detect the thermal mass target for the wino and the Higgsino for s = 6 TeV and 2 TeV (with s being the center of mass energy), respectively, with 10 ab − 1 , an 80 % polarized beam and an accuracy of 0 . 1 %. Our findings illuminate the potential of future high-energy μ + μ + colliders in advancing our understanding of dark matter.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
• Subject: Candidates / Classical and Quantum Gravitation / Dark matter / Dark Matter at Colliders / Elementary Particles / Energy / Higgs bosons / Models for Dark Matter / Muons / Particle beams / Physics / Physics and Astronomy / Production methods / Quantum Field Theories / Quantum Field Theory / Quantum Physics / Quarks / Regular Article - Theoretical Physics / Relativity Theory / Search methods / String Theory / Supersymmetry / Target detection / Weakly interacting massive particles