Angular analysis and differential branching fraction of the decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$

Abstract

An angular analysis and a measurement of the differential branching fraction of the decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$ are presented, using data corresponding to an integrated luminosity of $3.0\mathrm{f}{\mathrm{b}}^{-1}$ of $pp$ collisions recorded by the LHCb experiment at $\sqrt{s}=7$ and $8\mathrm{TeV}$. Measurements are reported as a function of $q^2$, the square of the dimuon invariant mass and results of the angular analysis are found to be consistent with the Standard Model. In the range $1<q^2<6{\mathrm{GeV}}^2/c^4$, where precise theoretical calculations are available, the differential branching fraction is found to be more than $3\sigma$ below the Standard Model predictions.

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• PYTHIA 6.4 Physics and Manual
• Big-Bang Nucleosynthesis
• Branching Ratio Measurements of $B_s$ Decays
• Implications of $b\to s$ measurements

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