Observation of the decay B+ -> psi(2S)phi(1020)K+ in pp collisions at root s=8 TeV

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Date
2016
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Elsevier
Abstract

The decay B(^{+})→ψ(2S)ϕ(1020)K(^{+}) is observed for the first time using data collected from pp collisions at (\sqrt{s}) = 8 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6 fb⁻¹. The branching fraction of this decay is measured, using the mode B(^{+})→ψ(2S)K(^{+}) as normalization, to be (4.0±0.4(stat)±0.6(syst)±0.2(B))×10(^{−6}), where the third uncertainty is from the measured branching fraction of the normalization channel.

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Keywords
CMS, Physics, B physics, Rare B decays, Astronomy & Astrophysics, Physics, Nuclear, Physics, Particles & Fields
Citation
Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., König, A., … Woods, N. (2017). Observation of the decay B+→ψ(2S)ϕ(1020)K+ in pp collisions at $\sqrt{s}$ = 8 TeV. In Physics Letters B (Vol. 764, pp. 66–86). Elsevier BV. https://doi.org/10.1016/j.physletb.2016.11.001