2015/11/30 by Ben Allanach, B. C. Allanach, Farinaldo S. Queiroz +3 · 2 citations
Computer Science · Physics and Astronomy · #Anomaly (physics) #Computational Physics and Python Applications #Coupling (piping) #Dark Matter and Cosmic Phenomena #Electron #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge theory #Large Hadron Collider #Lepton #Muon #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Quark #Standard Model (mathematical formulation) #hep-ph
paper · pdf · doi:10.1103/physrevd.93.055045
published as Phys. Rev. D 93, 055045 (2016) · 10 pages, 11 figures. Final, run 2 data added. Accepted in PRD. (v3) Typographical errors fixed in Eq (11) and (13)
openalex publication_date 2016/03/29 · openalex created_date 2016/06/24 · arxiv created 2017/05/01 · arxiv updated 2017/05/02 · openalex updated_date 2026/08/05
We revisit a class of Z^\ensuremath' explanations of the anomalies found by the LHCb collaboration in B decays, and show that the scenario is tightly constrained by a combination of constraints: (i) LHC searches for dimuon resonances, (ii) perturbativity of the Z^\ensuremath' couplings; (iii) the Bs mass difference, and (iv) electroweak precision data. Solutions are found by suppressing the Z^\ensuremath' coupling to electrons and to light quarks and/or by allowing for a Z^\ensuremath' decay width into dark matter. We also present a simplified framework where a TeV-scale Z^\ensuremath' gauge boson that couples to standard leptons as well as to new heavy vectorlike leptons, can simultaneously accommodate the LHCb anomalies and the muon g\ensuremath-2 anomaly.