TY - JOUR
T1 - Determination of fs/fd for 7 TeV pp Collisions and Measurement of the B0→D-K+ Branching Fraction
AU - The LHCb Collaboration
AU - Playfer, Stephen
AU - Needham, Matthew
AU - Muheim, Franz
AU - Clarke, Peter
AU - Xie, Yuehong
AU - Eisenhardt, Stephan
PY - 2011/11/14
Y1 - 2011/11/14
N2 - The relative abundance of the three decay modes Bd→D−K+, Bd→D−π+ and Bs→D−sπ+ produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb−1. The branching fraction of Bd→D−K+ is found to be B(Bd→D−K+)=(2.01±0.18stat±0.14syst)×10−4. The ratio of fragmentation fractions \fsfdt is determined through the relative abundance of Bs→D−sπ+ to Bd→D−K+ and Bd→D−π+, leading to fs/fd=0.253±0.017±0.017±0.020, where the uncertainties are statistical, systematic, and theoretical respectively.
AB - The relative abundance of the three decay modes Bd→D−K+, Bd→D−π+ and Bs→D−sπ+ produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb−1. The branching fraction of Bd→D−K+ is found to be B(Bd→D−K+)=(2.01±0.18stat±0.14syst)×10−4. The ratio of fragmentation fractions \fsfdt is determined through the relative abundance of Bs→D−sπ+ to Bd→D−K+ and Bd→D−π+, leading to fs/fd=0.253±0.017±0.017±0.020, where the uncertainties are statistical, systematic, and theoretical respectively.
UR - http://www.scopus.com/inward/record.url?scp=81155132145&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.107.211801
DO - 10.1103/PhysRevLett.107.211801
M3 - Article
AN - SCOPUS:81155132145
SN - 1079-7114
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 211801
ER -