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- W4221165963 abstract "The discrepancies between $bto sell^+ell^-$ data and the corresponding Standard Model predictions constitute the most significant hints for new physics (at the TeV scale or below) currently available. In fact, many scenarios that can account for these anomalies have been proposed in the literature. However, only a single light new physics explanation, i.e. with a mass below the $B$ meson scale, is possible: a light $Z^prime$ boson. In this article, we point out that improved limits on $Bto K^{(*)}nunu$, including the experimental sensitivities required for a proper treatment of the necessarily sizable $Z^prime$ width, together with the forthcoming Belle~II analyses of $e^+e^-tomu^+mu^-+{rm invisible}$, can rule out a $Z^prime$ explanation of $bto sell^+ell^-$ data with a mass below $approx4,$GeV. Importantly, such a light $Z^prime$ is the only viable single particle solution to the $bto sell^+ell^-$ anomalies predicting $R(K^{(*)})>0$ in high $q^2$ bins, therefore providing an essential consistency test of data." @default.
- W4221165963 created "2022-04-03" @default.
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- W4221165963 date "2022-02-25" @default.
- W4221165963 modified "2023-09-29" @default.
- W4221165963 title "Towards excluding a light $Z^prime$ explanation of $bto sell^+ell^-$" @default.
- W4221165963 doi "https://doi.org/10.48550/arxiv.2202.12900" @default.
- W4221165963 hasPublicationYear "2022" @default.
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