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Measurement of the lifetime of the Bc+ meson using the Bc+→ J/ψπ+ decay mode
(, , 2015-03-06)
The difference in total widths between the Bc+ and B+mesons is measured using a data sample corresponding to an integrated luminosity of 3.0 fb-1collected by the LHCb experiment in 7 and 8 TeV centre-of-mass ...
Measurement of D0–¯¯¯D0 Mixing Parameters and Search for CP Violation Using D0→K+π− Decays
(, , 2013-12-18)
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0→K+π− to D0→K−π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb−1 of ...
Search for the X(4140) state in B+ → J/ψϕK+ decays
(, , 2012-05-04)
A search for the X(4140) state in B+→J/ψϕK+ decays is performed with 0.37 fb−1 of pp collisions at √s=7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4σ disagreement ...
Measurement of CP violation parameters in B0 → DK*0 decays
(, , 2014-12-02)
An analysis of B0→DK*0 decays is presented, where D represents an admixture of D0 and ¯D0 mesons reconstructed in four separate final states: K−π+, π−K+, K+K− and π+π−. The data sample corresponds to ...
Search for CP violation in D+ → K−K+π+ decays
(, , 2011-12-28)
A model-independent search for direct CP violation in the Cabibbo-suppressed decay D+→K−K+π+ in a sample of approximately 370 000 decays is carried out. The data were collected by the LHCb experiment ...
Observation of B0→¯¯¯D0K+K− and Evidence for B0s→¯¯¯D0K+K−
(, , 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 ...
Observation of D0−¯¯¯D0 Oscillations
(, , 2013-03-05)
We report a measurement of the time-dependent ratio of D0→K+π− to D0→K−π+ decay rates in D*+-tagged events using 1.0 fb−1 of integrated luminosity recorded by the LHCb experiment. We measure the mixing ...
Prompt Kshort production in pp collisions at sqrt(s)=0.9 TeV
(, , 2010-09-27)
The production of K_short mesons in pp collisions at a centre-of-mass energy of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The luminosity of the analysed sample is determined ...
Observation of J/ψp Resonances Consistent with Pentaquark States in Λ0b→J/ψK−p Decays
(, , 2015-08-12)
Observations of exotic structures in the J/ψp channel, which we refer to as charmonium-pentaquark states, in Λ0b→J/ψK−p decays are presented. The data sample corresponds to an integrated luminosity of ...
Strong Constraints on the Rare Decays B0s→μ+μ− and B0→μ+μ−
(, , 2012-06-05)
A search for B0s→μ+μ− and B0→μ+μ− decays is performed using 1.0 fb−1 of pp collision data collected at √s=7 TeV with the LHCb experiment at the Large Hadron Collider. For both decays, the number of ...