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Angular analysis and differential branching fraction of the decay $B^0_s\to\phi\mu^+\mu^-$

The LHCb collaboration
JHEP 1509 (2015) 179, 2015

Abstract (data abstract)
CERN-LHC. An angular analysis and a measurement of the differential branching fraction of the decay $B^0_s\to\phi\mu^+\mu^-$ are presented, using data corresponding to an integrated luminosity of $3.0\, {\rm fb^{-1}}$ of $pp$ collisions recorded by the LHCb experiment at $\sqrt{s} = 7$ and $8\, {\rm TeV}$. 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 $1<q^2<6\, {\rm GeV}^{2}/c^{4}$, where precise theoretical calculations are available, the differential branching fraction is found to be more than $3\,\sigma$ below the Standard Model predictions.

  • Table 1

    Data from Table 1

    10.17182/hepdata.73774.v1/t1

    The signal yields for $B_s^0 \to \phi\mu^+\mu^-$ decays, as well as the differential branching fraction relative to the normalisation mode...

  • Table 2

    Data from Table 3

    10.17182/hepdata.73774.v1/t2

    (Top) $CP$-averaged angular observables $F_{\rm L}$ and $S_{3,4,7}$ obtained from the unbinned maximum likelihood fit.

  • Table 3

    Data from Table 3

    10.17182/hepdata.73774.v1/t3

    (Bottom) $CP$ asymmetries $A_{5,6,8,9}$ obtained from the unbinned maximum likelihood fit.

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