2017/06/30 by Junichiro Kawamura, Shohei Okawa, Yuji Omura · 2 citations
Mathematics · Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Fermion #Geometry #Lepton #Mathematics #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Quark #Scalar (mathematics) #Standard Model (mathematical formulation) #Yukawa potential #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.96.075041
published as Phys. Rev. D 96, 075041 (2017) · 19 pages, 6 figures, 2 tables; references added, figures refined, version accepted in PRD
openalex created_date 2017/06/23 · openalex publication_date 2017/10/31 · arxiv created 2017/11/01 · arxiv updated 2017/11/08 · openalex updated_date 2026/08/05
Recently, the LHCb Collaboration has reported the excesses in the b\ensuremath→sll processes. One of the promising candidates for new physics to explain the anomalies is the extended Standard Model (SM) with vectorlike quarks and leptons. In that model, Yukawa couplings between the extra fermions and SM fermions are introduced, adding extra scalars. Then, the box diagrams involving the extra fields achieve the b\ensuremath→sll anomalies. It has been known that the excesses require the large Yukawa couplings of leptons, so that this kind of model can be tested by studying correlations with other observables. In this paper, we consider the extra scalar to be a dark matter (DM) candidate, and investigate DM physics as well as the flavor physics and the LHC physics. The DM relic density and the direct-detection cross section are also dominantly given by the Yukawa couplings, so that we find some explicit correlations between DM physics and the flavor physics. In particular, we find the predictions of the b\ensuremath→sll anomalies against the direct detection of DM.