期刊
PHYSICAL REVIEW D
卷 93, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.93.055045
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资金
- CRF Grants of the Government of the Hong Kong SAR [HUKST4/CRF/13G]
- STFC Grant [ST/L000385/1]
- STFC [ST/L000385/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L000385/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1523395] Funding Source: National Science Foundation
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 dimuon resonances, (ii) perturbativity of the Z' couplings; (iii) the B-s mass difference, and (iv) electroweak 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 vectorlike leptons, can simultaneously accommodate the LHCb anomalies and the muon g - 2 anomaly.
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