Observation of the decay B+ to psi(2S) phi K+ in pp collisions at sqrt(s) = 8 TeV - Archive ouverte HAL Access content directly
Journal Articles Physics Letters B Year : 2017

Observation of the decay B+ to psi(2S) phi K+ in pp collisions at sqrt(s) = 8 TeV

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V. Khachatryan
  • Function : Author
S. Baffioni
P. Busson
R. Granier De Cassagnac
P. Paganini
J. Andrea
  • Function : Author
N. Chanon
C. Collard
D. Contardo
M. Gouzevitch
Fabienne Lagarde
M. Lethuillier
A. Popov D. Sabes
  • Function : Author
V. Sordini

Abstract

The decay B+ to psi(2S) phi(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 inverse femtobarns. The branching fraction of this decay is measured, using the mode B+ to psi(2S) K+ as normalization, to be (4.0+/- 0.4 (stat) +/- 0.6 (syst) +/- 0.2 (B)1E-6, where the third uncertainty is from the imprecision in the normalization channel.
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Dates and versions

in2p3-01344460 , version 1 (10-12-2018)

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V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Observation of the decay B+ to psi(2S) phi K+ in pp collisions at sqrt(s) = 8 TeV. Physics Letters B, 2017, 764, pp.66-86. ⟨10.1016/j.physletb.2016.11.001⟩. ⟨in2p3-01344460⟩
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