2014/09/11 by Dante Cárcamo, D. Carcamo, J. Gamboa +3
Physics and Astronomy · #Annihilation #Dark Matter and Cosmic Phenomena #Dark matter #Dark photon #Gauge boson #Hidden sector #Higgs boson #Higgs field #High-Energy Particle Collisions Research #Kinetic energy #Mixing (physics) #Particle physics theoretical and experimental studies #Photon #hep-ph #hep-th
paper · pdf · doi:10.1142/s0217732315500303
published in Modern Physics Letters A 30(07), 1550030 (World Scientific) · 6 pages, 1 figure
arxiv created 2014/09/11 · openalex publication_date 2015/02/10 · arxiv updated 2015/03/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A dark sector containing a Higgs field and a dark photon coupled to visible photons via a small kinetic mixing is considered. The mass of the dark gauge boson becomes rescaled by the parameter involved in the kinetic mixing. We also calculate the total annihilation cross-section for scalar Higgs interacting with an external field and show that exhibits Sommerfeld enhancement. The model can be extended to a SU(3) × SU(2) × U(1) dark sector. The mass of the dark Z boson increases due to the kinetic mixing.