Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/135284
Title: Determination of fs/fd for 7 TeV pp Collisions and Measurement of the B0→D−K+ Branching Fraction
Author: Calvo Gómez, Míriam
Camboni, Alessandro
Enterria i Adan, David G. d'
Garrido Beltrán, Lluís
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Musy, Marco
Pérez-Calero Yzquierdo, Antonio
Pie Valls, B. (Blai)
Potterat, Cédric
Puig Navarro, Albert
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Col·lisions (Física)
Experiments
Collisions (Physics)
Experiments
Issue Date: 14-Nov-2011
Publisher: American Physical Society
Abstract: The relative abundance of the three decay modes B 0 → D − K + , B 0 → D − π + , and B 0 s → D − s π + produced in 7 TeV p p collisions at the LHC is determined from data corresponding to an integrated luminosity of 35     pb − 1 . The branching fraction of B 0 → D − K + is found to be B ( B 0 → D − K + ) = ( 2.01 ± 0.18 stat ± 0.14 syst ) × 10 − 4 . The ratio of fragmentation fractions f s / f d is determined through the relative abundance of B 0 s → D − s π + to B 0 → D − K + and B 0 → D − π + , leading to f s / f d = 0.253 ± 0.017 ± 0.017 ± 0.020 , where the uncertainties are statistical, systematic, and theoretical, respectively.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.107.211801
It is part of: Physical Review Letters, 2011, vol. 107, num. 21, p. 211801
URI: http://hdl.handle.net/2445/135284
Related resource: https://doi.org/10.1103/PhysRevLett.107.211801
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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