Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131777
Title: | Measurements of the branching fractions and CP asymmetries of B±→J/ψπ± and B±→ψ(2S)π± decays |
Author: | Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Gascón Fora, David Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Puig Navarro, Albert Roselló, M. Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 1-May-2012 |
Publisher: | American Physical Society |
Abstract: | A study of B ± → J / ψ π ± and B ± → ψ ( 2 S ) π ± decays is performed with data corresponding to 0.37 fb − 1 of proton-proton collisions at √ s = 7 TeV . Their branching fractions are found to be B ( B ± → J / ψ π ± ) = ( 3.88 ± 0.11 ± 0.15 ) × 10 − 5 and B ( B ± → ψ ( 2 S ) π ± ) = ( 2.52 ± 0.26 ± 0.15 ) × 10 − 5 , where the first uncertainty is related to the statistical size of the sample and the second quantifies systematic effects. The measured C P asymmetries in these modes are A J / ψ π C P = 0.005 ± 0.027 ± 0.011 and A ψ ( 2 S ) π C P = 0.048 ± 0.090 ± 0.011 with no evidence of direct C P violation seen. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.85.091105 |
It is part of: | Physical Review D, 2012, vol. 85, num. 9, p. 091105 |
URI: | http://hdl.handle.net/2445/131777 |
Related resource: | https://doi.org/10.1103/PhysRevD.85.091105 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
618973.pdf | 884.29 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License