2014/10/03 by Chuan-Ren Chen, Y-K. Chu, Yu-Kuang Chu +1 · 16 citations
Physics and Astronomy · #Astrophysics #Atomic and Subatomic Physics Research #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark fluid #Dark matter #Hot dark matter #Light dark matter #Mixed dark matter #Particle physics #Physics #Quark #Scalar field dark matter #Warm dark matter #hep-ph
paper · pdf · doi:10.1016/j.physletb.2014.12.043
published in Physics Letters B 741, 205-209 (Elsevier BV) · 11 pages, 5 figures
arxiv created 2014/10/03 · openalex publication_date 2014/12/23 · arxiv updated 2018/05/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Even though the sensitivity of direct dark matter search experiments reaches the level of about 10−45cm2, no confident signal of dark matter has been observed. We point out that, if dark matter is a vector boson, the null result in direct dark matter search experiments may be due to the destructive effects in dark-matter–nucleon elastic scattering. We illustrate the scenario using a modified Higgs portal model that includes exotic quarks. The significant cancellation can occur for a certain mass gap between new heavy quark and dark matter. As a result, the spin-independent dark-matter–nucleon elastic scattering is so suppressed that the future direct search experiments will hardly observe the signal of dark matter.