Determination of fs/fd for 7 TeV pp Collisions and Measurement of the B0→D−K+ Branching Fraction

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 −...

Full description

Bibliographic Details
Authors: 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
Format: article
Status:Published version
Publication Date:2011
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/135284
Online Access:https://hdl.handle.net/2445/135284
Access Level:Open access
Keyword:Col·lisions (Física)
Experiments
Collisions (Physics)
Description
Summary: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.

Similar Items