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Title: Updated branching fraction measurements of B (s)0 → K S0 h + h ′ − decays
Author: LHCb Collaboration
Calvo Gomez, M.
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascon, D.
Gironella Gironell, P.
Graciani Diaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, E.
Vazquez Gomez, R.
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Física de partícules
Large Hadron Collider (France and Switzerland)
Particle physics
Issue Date: 2017
Publisher: Springer Verlag
Abstract: The charmless three-body decays B0 (s) → K0 S h +h 0− (where h (0) = π, K) are analysed using a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 3 fb−1 . The branching fractions are measured relative to that of the B0 → K0 S π +π − decay, and are determined to be: B B0→ K0 SK±π ∓ B(B0→ K0 S π+π−) = 0.123 ± 0.009 (stat) ± 0.015 (syst), B B0→ K0 SK+K− B(B0→ K0 S π+π−) = 0.549 ± 0.018 (stat) ± 0.033 (syst), B B0 s → K0 S π +π − B(B0→ K0 S π+π−) = 0.191 ± 0.027 (stat) ± 0.031 (syst) ± 0.011 (fs/fd), B B0 s → K0 SK±π ∓ B(B0→ K0 S π+π−) = 1.70 ± 0.07 (stat) ± 0.11 (syst) ± 0.10 (fs/fd), B B0 s → K0 SK+K− B(B0→ K0 S π+π−) ∈ [0.008 − 0.051] at 90% confidence level, where fs/fd represents the ratio of hadronisation fractions of the B0 s and B0 mesons. Keywords: B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experime
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2017, vol. 2021, p. 1-42
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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