An angular analysis and a measurement of the differential branching fraction of the decay Bs → ϕμ+μ− are presented, using data corresponding to an integrated luminosity of 3.0 fb−1 of pp collisions recorded by the LHCb experiment at √s = 7 and 8 TeV. Measurements are reported as a function of q2, 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 < q2< 6 GeV2/c4, where precise theoretical calculations are available, the differential branching fraction is found to be more than 3σ below the Standard Model predictions. © 2015, The Author(s).

Angular analysis and differential branching fraction of the decay B0s → ϕμ+μ−

PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2015-01-01

Abstract

An angular analysis and a measurement of the differential branching fraction of the decay Bs → ϕμ+μ− are presented, using data corresponding to an integrated luminosity of 3.0 fb−1 of pp collisions recorded by the LHCb experiment at √s = 7 and 8 TeV. Measurements are reported as a function of q2, 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 < q2< 6 GeV2/c4, where precise theoretical calculations are available, the differential branching fraction is found to be more than 3σ below the Standard Model predictions. © 2015, The Author(s).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/179597
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