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.

The LHCb collaboration, N., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2015). Angular analysis and differential branching fraction of the decay B0s → ϕμ+μ−. JOURNAL OF HIGH ENERGY PHYSICS, 2015(9) [10.1007/JHEP09(2015)179].

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

Borsato, M;CALVI, MARTA;CARNITI, PAOLO;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;Martinelli, M;MATTEUZZI, CLARA;Petruzzo, M;
2015

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.
Articolo in rivista - Articolo scientifico
B physics; Flavor physics; Hadron-Hadron Scattering; Rare decay; Nuclear and High Energy Physics
English
2015
2015
9
179
open
The LHCb collaboration, N., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2015). Angular analysis and differential branching fraction of the decay B0s → ϕμ+μ−. JOURNAL OF HIGH ENERGY PHYSICS, 2015(9) [10.1007/JHEP09(2015)179].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/155116
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