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Measurement of the charge asymmetry in B±→ϕK±B±→ϕK± and search for B±→ϕπ±B±→ϕπ± decays
(Elsevier, 2014-01-20)
The CP-violating charge asymmetry in B±→ϕK±B±→ϕK± decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb−1 collected by the ...
Observation of B0→¯¯¯D0K+K− and Evidence for B0s→¯¯¯D0K+K−
(American Physical Society, 2012-09-26)
The first observation of the decay B0→¯¯¯D0K+K− is reported from an analysis of 0.62 fb−1 of pp collision data collected with the LHCb detector. Its branching fraction is measured relative to that of ...
Differential branching fraction and angular analysis of Λ 0 b → Λμ+μ− decays
(Springer, 2015-06-17)
The differential branching fraction of the rare decay Λ 0 b → Λμ+μ− is measured as a function of q2, the square of the dimuon invariant mass. The analysis is performed using proton-proton collision ...
Observation of ¯B0(s)→J/ψ f1(1285) Decays and Measurement of the f1(1285) Mixing Angle
(American Physical Society, 2014-03-04)
Decays of ¯B0s and ¯B0 mesons into J/ψ π+π−π+π− final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb−1 collected with the ...
First observation of the decay B0s→ϕK¯¯¯¯¯∗0
(Springer, 2013-10-28)
The first observation of the decay B0s→ϕK¯¯¯¯¯∗0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at s√=7 TeV, collected with ...
First Observation of the Decay B+c→J/ψπ+π−π+
(American Physical Society, 2012-06-19)
The decay B+c→J/ψπ+π−π+ is observed for the first time, using 0.8 fb−1 of pp collisions at √s=7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B+c→J/ψπ+π−π+)/B(B+c→J/ψπ+) is ...
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
(Springer, 2014-10-09)
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at ...
Observation of J/ψ-pair production in pp collisions at s=7 TeV
(Elsevier, 2012-01-16)
The production of J/ψpairs in proton–proton collisions at a centre-of-mass energy of 7 TeV has beenobserved using an integrated luminosity of 37.5 pb−1collected with the LHCb detector. The productionc ...
Measurements of the branching fractions of B+ → ppK¯ + decays
(Springer, 2013-06)
The branching fractions of the decay B+ →
ppK¯ + for different intermediate states are measured using
data, corresponding to an integrated luminosity of 1.0 fb−1,
collected by the LHCb experiment. The ...
Measurement of the track reconstruction efficiency at LHCb
(IOPscience, 2015-02)
The determination of track reconstruction efficiencies at LHCb using J/ψ→μ+μ- decays is presented. Efficiencies above 95% are found for the data taking periods in 2010, 2011, and 2012. The ratio of the ...