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Title: | Observation of the decay Bc+→ψ(2S)π+ |
Author: | Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Abellan Beteta, Carlos Calvo Gómez, Míriam Oyanguren Campos, Arantza de Ruiz Valls, Pablo Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 1-Apr-2013 |
Publisher: | American Physical Society |
Abstract: | The decay B + c → ψ ( 2 S ) π + with ψ ( 2 S ) → μ + μ − is observed with a significance of 5.2 σ using p p collision data corresponding to an integrated luminosity of 1.0 fb − 1 collected by the LHCb experiment. The branching fraction of B + c → ψ ( 2 S ) π + decays relative to that of the B + c → J / ψ π + mode is measured to be B ( B + c → ψ ( 2 S ) π + ) B ( B + c → J / ψ π + ) = 0.250 ± 0.068 ( stat ) ± 0.014 ( syst ) ± 0.006 ( B ) . The last term is the uncertainty on the ratio B ( ψ ( 2 S ) → μ + μ − ) / B ( J / ψ → μ + μ − ). |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.87.071103 |
It is part of: | Physical Review D, 2013, vol. 87, num. 7, p. 071103(R) |
URI: | http://hdl.handle.net/2445/131832 |
Related resource: | https://doi.org/10.1103/PhysRevD.87.071103 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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