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Title: | Observation of the $B_s^0 \to J/\psi K_s^0 K^\pm \pi^\mp$ decay |
Author: | Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste, E. Rives, V. Ruiz, Hugo LHCb Collaboration |
Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
Issue Date: | Jul-2014 |
Publisher: | Springer Verlag |
Abstract: | Decays of the form B0 (s) → J/ψ K0 S h +h (′)− (h (′) = K, π) are searched for in protonproton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded with the LHCb detector. The first observation of the B0 s → J/ψ K0 SK±π ∓ decay is reported, with significance in excess of 10 standard deviations. The B0 → J/ψ K0 SK+K− decay is also observed for the first time. The branching fraction of B0 → J/ψ K0 S π +π − is determined, to significantly better precision than previous measurements, using B0 → J/ψ K0 S as a normalisation channel. Branching fractions and upper limits of the other B0 (s) → J/ψ K0 S h +h (′)− modes are determined relative to that of the B0 → J/ψ K0 S π +π − decay. |
Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP07(2014)140 |
It is part of: | Journal of High Energy Physics, 2014, vol. 2014, num. 140, p. 1-31 |
URI: | http://hdl.handle.net/2445/185659 |
Related resource: | https://doi.org/10.1007/JHEP07(2014)140 |
ISSN: | 1126-6708 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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