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) [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; Nuclear and High Energy Physics
English
2014
2014
10
064
none
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) [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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