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Similar

W. Altmannshofer and D. M. Straub, New physics in B → K ∗ μ μ B\to K^{*}\mu\mu ? , Eur.Phys.J. C73
Original
2013
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A. J. Buras and J. Girrbach, Left-handed Z’ and Z FCNC quark couplings facing new b → s μ + μ − b\to s\mu^{+}\mu^{-} data , JHEP 1312
Original
2013
Cited alongside, same era.
M. Dimou, J. Lyon and R. Zwicky, Exclusive Chromomagnetism in heavy-to-light FCNCs , Phys. Rev. D87
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2013
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S. Jager and J. Martin Camalich, On B → V ℓ ℓ B\to V\ell\ell at small dilepton invariant mass, power corrections, and new physics , JHEP 05
Original
2013
Cited alongside, same era.
C. Bobeth, M. Gorbahn, T. Hermann, M. Misiak, E. Stamou et al., B s , d → l + l − B_{s,d}\to l^{+}l^{-} in the Standard Model with Reduced Theoretical Uncertainty , Phys.Rev.Lett. 112

Then

E. Megias, G. Panico, O. Pujolas and M. Quiros, A Natural origin for the LHCb anomalies , JHEP 09
Original
2016
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M. Ciuchini, M. Fedele, E. Franco, S. Mishima, A. Paul, L. Silvestrini et al., B → K ∗ ℓ + ℓ − B\to K^{*}\ell^{+}\ell^{-} decays at large recoil in the Standard Model: a theoretical reappraisal , JHEP 06
Original
2016
Later among the works it cites.
S. Jager and J. Martin Camalich, Reassessing the discovery potential of the B → K ∗ ℓ + ℓ − B\to K^{*}\ell^{+}\ell^{-} decays in the large-recoil region: SM challenges and BSM opportunities , Phys. Rev. D93
Original
2016
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A. Bharucha, D. M. Straub and R. Zwicky, B → V ℓ + ℓ − B\to V\ell^{+}\ell^{-} in the Standard Model from light-cone sum rules , JHEP 08
Original
2016
Later among the works it cites.

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2017

Explaining the $R_K$ and $R_{K^*}$ anomalies

Ghosh, Diptimoy

Understand

Recent LHCb results on $R_{K^*}$, the ratio of the branching fractions of $B \to K^* \mu^+ \mu^-$ to that of $B \to K^* e^+ e^-$, for the dilepton invariant mass bins $q^2 \equiv m_{\ell\ell}^2 = [0.045 - 1.1]$ GeV$^2$ and $[1.1 - 6]$ GeV$^2$ show approximately $2.5 \sigma$ deviations from the corresponding Standard Model prediction in each of the bins.

This, when combined with the measurement of $R_K \, (q^2=[1-6]\, \rm GeV^2)$, a similar ratio for the decay to a pseudo scalar meson, highly suggests for lepton non-universal new physics in semi-leptonic $B$ meson decays.
In this work, we perform a model independent analysis of these potential new physics signals and identify the operators that do the best job in satisfying all these measurements.
We show that heavy new physics, giving rise to $q^2$ independent local 4-Fermi operators of scalar, pseudo-scalar, vector or axial-vector type, is unable to explain all the three measurements simultaneously, in particular $R_{K^*}$ in the bin [0.045 - 1.1], within their experimental $1\sigma$ regions.