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Title: Observation of Bc+→J /ψ D(*)K(*) decays
Author: Camboni, Alessandro
Coquereau, S.
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Diaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, E.
Rives Molina, V.
Alfonso Albero, Alejandro
Calvo Gomez, M.
Gironella Gironell, P.
Vazquez Gomez, R.
LHCb Collaboration
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Física de partícules
Large Hadron Collider (France and Switzerland)
Particle physics
Issue Date: Feb-2017
Publisher: American Physical Society
Abstract: A search for the decays Bc+→J /ψ D(*)0K+ and Bc+→J /ψ D(*)+K*0 is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb-1 . The decays Bc+→J /ψ D0K+ and Bc+→J /ψ D*0K+ are observed for the first time, while first evidence is reported for the Bc+→J /ψ D*+K*0 and Bc+→J /ψ D+K*0 decays. The branching fractions of these decays are determined relative to the Bc+→J /ψ π+ decay. The Bc+ mass is measured, using the J /ψ D0K+ final state, to be 6274.28 ±1.40 (stat) ±0.32 (syst) MeV /c2 . This is the most precise single measurement of the Bc+ mass to date.
Note: Reproducció del document publicat a:
It is part of: Physical Review D, 2017, vol. 95, num. 032005, p. 1-12
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ISSN: 2470-0010
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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