2014/04/28 by Zhao-Huan Yu, Xiao-Jun Bi, Qi-Shu Yan +2
Physics and Astronomy · #Boson #Context (archaeology) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge theory #Hadron #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Sensitivity (control systems) #Standard Model (mathematical formulation) #hep-ph
paper · pdf · doi:10.1103/physrevd.90.055010
12 pages, 7 figures
arxiv created 2014/04/28 · openalex publication_date 2014/09/10 · arxiv updated 2015/06/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We explore the mono-Z signature for dark matter searches at future high energy e+e^\ensuremath- colliders. In the context of effective field theory, we consider two kinds of contact operators describing dark matter interactions with electroweak gauge bosons and with electron/positron, respectively. For five benchmark models, we propose kinematic cuts to distinguish signals from backgrounds for both charged leptonic and hadronic decay modes of the Z boson. We also present the experimental sensitivity to cutoff scales of effective operators and compare it with that of the Fermi-LAT indirect search and demonstrate the gains in significance for the several configurations of polarized beams.