2009/02/28 by Y. Bai, Yang Bai, Zhenyu Han · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevlett.103.051801
published as Phys.Rev.Lett.103:051801,2009 · 4 pages, 4 figures; final version for PRL
openalex publication_date 2009/07/27 · arxiv created 2009/08/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A long-range "dark force" has recently been proposed to mediate the dark matter (DM) annihilation. If DM particles are copiously produced at the Large Hadron Collider, the light dark force mediator will also be produced through radiation. We demonstrate how and how precise we can utilize this fact to measure the coupling constant of the dark force. The light mediator's mass is measured for the "lepton jet" to which it decays. In addition, the mass of the DM particle is determined using the m(T2) technique. Knowing these quantities is critical for calculating the DM relic density.