Z ' models for the LHCb and g-2 muon anomalies
By Benjamin C. Allanach, F. Queiroz, Alessandro Strumia, Sichun Sun. 2015
166 citations recorded by the source corpus.
We revisit a class of Z' 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 di-muon resonances, (ii) pertubativity of the Z' couplings; (iii) the $B_s$ mass difference, and (iv) and electro-weak precision data. Solutions are found by suppressing the Z' coupling to electrons and to light quarks and/or by allowing for a Z' decay width into dark matter. We also present a simplified framework where a TeV-scale Z' gauge boson that couples to standard leptons as well as to new heavy vector-like leptons, can simultaneously accommodate the LHCb anomalies and the muon g-2 anomaly.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e7e0866c5aab89164a87ae9df57b539998df3e9b
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In Nuclear and High Energy Physics
Citations in the corpus
- Continuing search for new physics in b → sμμ decays: two operators at a time (2019, background): “For example, Z ′ models with gauge couplings to leptons can generate the only-CNP 9 scenario [43–45].”