First observations of the rare decays B+ → K+π+π-μ+μ- and B+ → φK+μ+μ- are presented using data corresponding to an integrated luminosity of 3.0 fb-1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The branching fractions of the decays are (Formula Presented.) where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B+ → K+π+π-μ+μ-.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). First observations of the rare decays B+ → K+ π+ π- μ+ μ- and B+ → φ K+ μ+ μ-. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-18 [10.1007/JHEP10(2014)064].

First observations of the rare decays B+ → K+ π+ π- μ+ μ- and B+ → φ K+ μ+ μ-

Borsato, M;CALVI, MARTA;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;
2014

Abstract

First observations of the rare decays B+ → K+π+π-μ+μ- and B+ → φK+μ+μ- are presented using data corresponding to an integrated luminosity of 3.0 fb-1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The branching fractions of the decays are (Formula Presented.) where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B+ → K+π+π-μ+μ-.
Articolo in rivista - Articolo scientifico
B physics; Flavor physics; Hadron-Hadron Scattering; Rare decay;
B physics; Flavor physics; Hadron-Hadron Scattering; Rare decay; Nuclear and High Energy Physics
English
2014
2014
10
1
18
64
open
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). First observations of the rare decays B+ → K+ π+ π- μ+ μ- and B+ → φ K+ μ+ μ-. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-18 [10.1007/JHEP10(2014)064].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/89346
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