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An analysis of the angular distribution of the decay $Lambda_b^0 rightarrow Lambda mu^{+} mu^{-}$ is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately $5,fb^{-1}$. Angular observables are determined using a moment analysis of the angular distribution at low hadronic recoil, corresponding to the dimuon invariant mass squared range $15 < q^{2} < 20, GeV^2/c^4$. The full basis of observables is measured for the first time. The lepton-side, hadron-side and combined forward-backward asymmetries of the decay are determined to be begin{align} A_{FB}^{l} & = -0.39 pm 0.04,rm{stat} pm 0.01, rm{syst}, onumber A_{FB}^{h} & = -0.30 pm 0.05,rm{stat} pm 0.02, rm{syst}, onumber A_{FB}^{lh} & = +0.25 pm 0.04,rm{stat} pm 0.01, rm{syst}. onumber end{align} The measurements are consistent with Standard Model predictions.
The suppressed decay $Lambda^{0}_{b}rightarrow ppi^{-}mu^{+}mu^{-}$, excluding the $J/psi$ and $psi(2S)rightarrow mu^{+}mu^{-}$ resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with
The differential branching fraction of the rare decay $Lambda^{0}_{b} rightarrow Lambda mu^+mu^-$ is measured as a function of $q^{2}$, the square of the dimuon invariant mass. The analysis is performed using proton-proton collision data, correspondi
We present an angular analysis of the $B^{+}rightarrow K^{ast+}(rightarrow K_{S}^{0}pi^{+})mu^{+}mu^{-}$ decay using 9$,mbox{fb}^{-1}$ of $pp$ collision data collected with the LHCb experiment. For the first time, the full set of CP-averaged angular
A search for the decay $B_{s}^0 rightarrow overline{K}{}^{*0}mu^+mu^-$ is presented using data sets corresponding to 1.0, 2.0 and 1.6 $text{fb}^{-1}$ of integrated luminosity collected during $pp$ collisions with the LHCb experiment at centre-of-mass
An angular analysis of the $B^{0}rightarrow K^{*0}(rightarrow K^{+}pi^{-})mu^{+}mu^{-}$ decay is presented. The dataset corresponds to an integrated luminosity of $3.0,{mbox{fb}^{-1}}$ of $pp$ collision data collected at the LHCb experiment. The comp