The decay Bc+ → ψ(2S) π+ with ψ(2S) → μ+ μ− is observed with a significance of 5.2σ using pp collision data corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The branching fraction of Bc+ → ψ(2S) π+ decays relative to that of the Bc+ → J/ψ π+ mode is measured to be B(Bc+ → ψ(2S) π+)/B(Bc+ → J/ψ π+) = 0.250 ± 0.068(stat) ± 0.014(syst) ± 0.006(B). The last term is the uncertainty on the ratio B(ψ(2S) → μ+ μ−)/B(J/ψ → μ+ μ−).

Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Observation of the Decay Bc+ → ψ(2S) π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(7), 1-7 [10.1103/PhysRevD.87.071103].

Observation of the Decay Bc+ → ψ(2S) π+

CARBONE, ANGELO;A. Di Canto;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013

Abstract

The decay Bc+ → ψ(2S) π+ with ψ(2S) → μ+ μ− is observed with a significance of 5.2σ using pp collision data corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The branching fraction of Bc+ → ψ(2S) π+ decays relative to that of the Bc+ → J/ψ π+ mode is measured to be B(Bc+ → ψ(2S) π+)/B(Bc+ → J/ψ π+) = 0.250 ± 0.068(stat) ± 0.014(syst) ± 0.006(B). The last term is the uncertainty on the ratio B(ψ(2S) → μ+ μ−)/B(J/ψ → μ+ μ−).
2013
Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Observation of the Decay Bc+ → ψ(2S) π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(7), 1-7 [10.1103/PhysRevD.87.071103].
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Al...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/136199
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