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On minimal Z' explanations of the B->K*mu+mu- anomaly

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arxiv 1308.1959 v2 pith:FIVWFJIE submitted 2013-08-08 hep-ph hep-ex

Rhorry Gauld , Florian Goertz , Ulrich Haisch This is my paper · ORCID
classification hep-phhep-ex
keywords anomalymassminimalobservablestriple-correlationaccessibleaddressallow
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Recently LHCb has announced a discrepancy of 3.7 sigma in one of the theoretically clean observables accessible through studies of angular correlations in B->K*mu+mu-. We point out that in the most minimal Z' setup that can address this anomaly there is a model-independent triple-correlation between new physics (NP) in B->K*mu+mu-, B_s-Bbar_s mixing, and non-unitarity of the quark-mixing matrix. This triple-correlation can be cast into a simple analytic formula that relates the NP contribution DeltaC9 to the Wilson coefficient of the semileptonic vector operator to a shift in the mass difference DeltaM_{B_s} and a violation of |Vud|^2+ |Vus|^2+ |Vub|^2 = 1. In contrast to the individual observables the found relation depends only logarithmically on the Z' mass. We show that that our findings allow for useful future tests of the pattern of NP suggested by the B->K*mu+mu- anomaly.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gauging the accidental symmetries of the Standard Model, and implications for the flavour anomalies

    hep-ph 2019-09 accept novelty 6.0 of 10

    Gauging an almost arbitrary combination of baryon number, lepton numbers and hypercharge, with three new singlet fermions, yields a Z' framework that can explain the B decay flavour anomalies with a universal axial co...

  2. Associated $Z^\prime$ production in the flavorful $U(1)$ scenario for $R_{K^{(*)}}$

    hep-ph 2019-08 conditional novelty 5.0 of 10

    A flavorful Z' model for the B-meson anomalies predicts discoverable associated-production signatures at the HL-LHC: dimuon + b-jets for M_Z' up to ~500 GeV and tri-muon + missing energy for larger muon couplings.

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