Exploring leptophilic dark matter with NA64-μ

• Published in: The journal of high energy physics Vol. 2018; no. 10; pp. 1 - 30
• Main Authors: Chen, Chien-Yi, Kozaczuk, Jonathan, Zhong, Yi-Ming
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-10-2018; Springer Nature B.V; Springer Berlin; SpringerOpen
• Subjects: Beyond Standard Model; Classical and Quantum Gravitation; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Dark matter; Elementary Particles; Fixed target experiments; High energy physics; Leptons; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Experimental Physics; Relativity Theory; Scalars; String Theory; Fixed target experiments; Beyond Standard Model
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP10(2018)154

A
bstract
We investigate the prospects for detecting light leptophilic dark sectors with a missing-momentum experiment at NA64 running in muon mode. In particular, we consider models in which dark matter connects to the visible sector through a lepton- or muon-specific scalar mediator. These scalars can also account for the ∼ 3.5
σ
discrepancy between the measured and predicted values of (
g
−2)
μ
. We emphasize the complementarity between NA64-
μ
and other terrestrial and astrophysical probes.