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Measurement of the and effective lifetimes
LHCb collaboration, R. Aaij, B. Adeva +672
The first measurement of the effective lifetime of the meson in the decay is reported using a proton-proton collision dataset, correspondi…
Measurements of indirect CP asymmetries in and decays
LHCb collaboration, R. Aaij, B. Adeva +656
A study of indirect CP violation in mesons through the determination of the parameter is presented using a data sample of collisions, corresponding to an integrate…
Search for the decay D0 to π+ π- μ+ μ-
LHCb collaboration, R. Aaij, B. Adeva +656
A search for the D0 to π+ π- μ+ μ- decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated lu…
Measurement of D0-D0bar mixing parameters and search for CP violation using D0->K+pi- decays
LHCb collaboration, R. Aaij, B. Adeva +657
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0->K+pi- to D0->K-pi+ rates and the charge-conjugate ratio are reported. The analysis uses data, cor…
Measurement of the charge asymmetry in and search for decays
LHCb collaboration, R. Aaij, B. Adeva +655
The \CP-violating charge asymmetry in decays is measured in a sample of collisions at 7 TeV centre-of-mass energy, corresponding to an integrated…
Study of production and cold nuclear matter effects in Pb collisions at
LHCb collaboration, R. Aaij, B. Adeva +656
The production of mesons with rapidity or and transverse momentum is studied with the LHCb detector in proton-lead…
First observation of B0->J/ψK+K- and search for B0->J/ψϕ decays
LHCb collaboration, R. Aaij, B. Adeva +652
The first observation of the B0->J/ψK+K- decay is presented with a data sample corresponding to an integrated luminosity of 1.0/fb of pp collisions at a center-of-mass energy of 7…
Observation of the decay
The LHCb collaboration, R. Aaij, B. Adeva +655
First observation of the decay Bs -> D0bar phi is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb^-1, collected by the LHCb experiment at a ce…
Observation of the decay Bc+ -> Bs0 pi+
LHCb collaboration, R. Aaij, B. Adeva +653
The result of a search for the decay Bc+ -> Bs0 pi+ is presented, using the Bs0 -> Ds- pi+ and Bs0 -> J/psi Phi channels. The analysis is based on a data sample of pp collisions co…
Measurement of the asymmetry in decays
LHCb collaboration, R. Aaij, B. Adeva +657
A measurement of the asymmetry in decays is presented using collision data, corresponding to an integrated luminosity of 1.0, r…
Observation of - mixing and measurement of mixing frequencies using semileptonic B decays
LHCb collaboration, R. Aaij, B. Adeva +657
The and mixing frequencies, and , are measured using a data sample corresponding to an integrated luminosity of 1.0 fb^{-1} collected by the LHCb experim…
Precision measurement of the Lambda_b baryon lifetime
LHCb collaboration, R. Aaij, B. Adeva +652
The ratio of the Λb baryon lifetime to that of the B0 meson is measured using 1.0/fb of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The Λb baryon…
Study of decays with first observation of and
LHCb collaboration, R. Aaij, B. Adeva +657
A search for charmless three-body decays of and mesons with a meson in the final state is performed using the collision data, corresponding to an…
Measurement of the branching fraction and search for decays at the LHCb experiment
LHCb collaboration, R. Aaij, B. Adeva +650
A search for the rare decays and is performed at the LHCb experiment. The data analysed correspond to an integrated luminosity of 1 fb of $…
Search for the lepton-flavour violating decays and
LHCb collaboration, R. Aaij, B. Adeva +650
A search for the lepton-flavour violating decays and is performed with a data sample, corresponding to an integrated luminosit…
First observation of the decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +632
The decay is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 , collected by the LHCb experiment in…
Searches for and decays
LHCb collaboration, R. Aaij, B. Adeva +650
The results of searches for and decays are reported. The analysis is based on a data sample, corre…
Measurement of B meson production cross-sections in proton-proton collisions at sqrt(s)= 7 TeV
LHCb collaboration, R. Aaij, C. Abellan Beteta +625
The production cross-sections of B mesons are measured in pp collisions at a centre-of-mass energy of 7 TeV, using data collected with the LHCb detector corresponding to a integrat…
Search for the rare decay
LHCb collaboration, R. Aaij, C. Abellan Beteta +634
A search for the rare decay is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb, of collisions collected at a centre-…
Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime
LHCb collaboration, R. Aaij, C. Abellan Beteta +630
This paper reports the first measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are pe…
Precision measurement of the - oscillation frequency with the decay $B^{0}_{s}\rightarrowD^{-}_{s}π^{+}$
LHCb collaboration, R. Aaij, C. Abellan Beteta +622
A key ingredient to searches for physics beyond the Standard Model in mixing phenomena is the measurement of the - oscillation frequency, wh…
Production of J/psi and Upsilon mesons in pp collisions at sqrt(s) = 8 TeV
LHCb collaboration, R. Aaij, C. Abellan Beteta +631
The production of J/psi and Upsilon mesons in pp collisions at sqrt(s) = 8 TeV is studied with the LHCb detector. The J/psi and Upsilon mesons are reconstructed in the mu+mu- decay…
First observation of CP violation in the decays of Bs mesons
LHCb collaboration, R. Aaij, C. Abellan Beteta +631
Using pp collision data, corresponding to an integrated luminosity of , collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measureme…
Observation of and decays
LHCb collaboration, R. Aaij, C. Abellan Beteta +623
The decays and are observed for the first time using a dataset, corresponding to an integrated luminosity of 3…