Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/131785
Title: | Analysis of the resonant components in ¯¯¯B0s→J/ψπ+π− |
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-Sep-2012 |
Publisher: | American Physical Society |
Abstract: | The decay ¯¯¯ B 0 s → J / ψ π + π − can be exploited to study C P violation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state is performed using a 1.0 fb − 1 sample of data produced in 7 TeV p p collisions at the LHC and collected by the LHCb experiment. A modified Dalitz plot analysis of the final state is performed using both the invariant mass spectra and the decay angular distributions. The π + π − system is shown to be dominantly in an S -wave state, and the C P -odd fraction in this ¯¯¯ B 0 s decay is shown to be greater than 0.977 at 95% confidence level. In addition, we report the first measurement of the J / ψ π + π − branching fraction relative to J / ψ ϕ of ( 19.79 ± 0.47 ± 0.52 ) % . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.86.052006 |
It is part of: | Physical Review D, 2012, vol. 86, num. 5, p. 052006 -377 |
URI: | https://hdl.handle.net/2445/131785 |
Related resource: | https://doi.org/10.1103/PhysRevD.86.052006 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Física de la Matèria Condensada) Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
619614.pdf | 1.63 MB | Adobe PDF | View/Open |
This item is licensed under a
Creative Commons License