Listando Articles publicats en revistes por título
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Measurement of J/ψ production in pp collisions at s√=2.76TeV
(Journal of High Energy Physics, 2013, Vol. 2013, No.2 (Febrer), 2013-02-07)The production of J/ψ mesons is studied with the LHCb detector using data from pp collisions at s√=2.76 TeV corresponding to an integrated luminosity of 71 nb−1. The differential cross-section for ... -
Measurement of J/Ψ production in pp collisions at s√=7 TeV
(The European Physical Journal C, 2011. Vol. 71, No. 5 (Maig), 2011-05-19)The production of J/ψ mesons in proton–proton collisions at s√=7\ensuremath TeV is studied with the LHCb detector at the LHC. The differential cross-section for prompt J/ψ production is measured as a ... -
Measurement of mixing and CP violation parameters in two-body charm decays
(Journal of High Energy Physics, 2012, Vol. 2012, No.4 (Abril), 2012-04-27)A study of mixing and indirect CP violation in D 0 mesons through the determination of the parameters y CP and A Γ is presented. The parameter y CP is the deviation from unity of the ratio of effective ... -
Measurement of polarization amplitudes and CP asymmetries in B 0 → ϕK *(892)0
(Journal of High Energy Physics, 2014, Vol. 2014, No.5 (Maig), 2014-05-16)An angular analysis of the decay B 0 → ϕK *(892)0 is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb−1, collected at a centre-of-mass energy of s√ = 7 ... -
Measurement of prompt hadron production ratios in pp collisions at s√=0.9 and 7 TeV
(The European Physical Journal C, 2012, Vol. 72, no. 8 (Agost), 2012-08-16)All underlying interactions responsible for pp collisions at the Large Hadron Collider (LHC) and the subsequent hadronisation process can be understood within the context of quantum chromodynamics (QCD). ... -
Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons
(The European Physical Journal C, 2012, Vol. 72, No. 2118, 2012-08)The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions (B) are measured ... -
Measurement of resonant and CP components in ¯B0s→J/ψπ+π− decays
(Physical Review D, 2014, Vol. 89 , No.9 (Maig), 2014-05-14)Structure of the decay ¯B0s→J/ψπ+π− is studied using data corresponding to 3 fb−1 of integrated luminosity from pp collisions produced by the LHC and collected by the LHCb detector. Five interfering ... -
Measurement of sigma(pp -> b anti-b X) at sqrt(s)=7 TeV in the forward region
(Physics Letters B, Vol. 694, No. 3 (Novembre 2010), 2010)Decays of b hadrons into final states containing a Dº meson and a muon are used to measure the bb production cross-section in proton–proton collisions at a centre-of-mass energy of 7 TeV at the LHC. In ... -
Measurement of the B 0 s → μ + μ − Branching Fraction and Search for B 0 → μ + μ − Decays at the LHCb Experiment
(Physical Review Letters, 2013, Vol. 111, No. 10, 2013-09)A search for the rare decays B 0 s → μ + μ − and B 0 → μ + μ − is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1 fb − 1 of p p collisions at ... -
Measurement of the C P Asymmetry in B + → K + μ + μ − Decays
(Physical Review Letters, 2013, Vol. 111, No. 15, 2013-10)A measurement of the CP asymmetry in Bþ ! Kþ þ decays is presented using pp collision data, corresponding to an integrated luminosity of 1:0 fb 1, recorded by the LHCb experiment during 2011 at ... -
Measurement of the ¯¯¯ B 0 s Effective Lifetime in the J / ψ f 0 ( 980 ) Final State
(Physical Review Letters, 2012, Vol. 109, No. 15, 2012-10)The effective lifetime of the ¯¯¯ B 0 s meson in the decay mode ¯¯¯ B 0 s → J / ψ f 0 ( 980 ) is measured using 1.0 fb − 1 of data collected in p p collisions at √ s = 7 TeV with the ... -
Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
(Journal of High Energy Physics, 2015, Vol. 2015, No.8 (Octubre), 2015-10-08)Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s → ϕϕ branching fraction is measured to be B(B0s→ϕ ... -
Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass
(Journal of High Energy Physics, 2013, Vol. 2013, No.5 (Maig), 2013-05-29)The branching fraction of the rare decay B 0 → K ∗0 e + e − in the dilepton mass region from 30 to 1000 MeV/c 2 has been measured by the LHCb experiment, using pp collision data, corresponding to an ... -
Measurement of the B+c meson lifetime using B+c→J/ψμ+νμX decays
(The European Physical Journal C, 2014, Vol. 74, no. 5 (Maig), 2014-05-01)The lifetime of the B+c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb −1, are collected by the ... -
Measurement of the B0s→J/ψK0S branching fraction
(Physics Letters B, 2012, Vol. 713, No. 3, (Juliol), 2012-07-09)The B0s→J/ψK0S branching fraction is measured in a data sample corresponding to 0.41 fb−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive tothe penguin ... -
Measurement of the B0s→J/ψ¯¯¯¯K*0 branching fraction and angular amplitudes
(Physical Review D, 2012, No. 86 (Octubre), 2012-10-08)A sample of 114±11 B0s→J/ψK−π+ signal events obtained with 0.37 fb−1 of pp collisions at √s=7 TeV collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes ... -
Measurement of the B0s−B¯0s oscillation frequency Δms in B0s→D−s(3)π decays
(Physics Letters B, 2012-03-19)The B0s–B0soscillation frequency msis measured with 36 pb−1of data collected inppcollisions at √s=7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381B0s→D−sπ+andB0s→D−sπ+π−π+signal ... -
Measurement of the B0–B0 oscillation frequency md with the decays B0→D−π+ and B0→J/ψK∗0
(Physical Letters B, Vol. 719, 2013-01)The B0–B0oscillation frequency mdis measured by the LHCb experiment using a dataset correspondingto an integrated luminosity of 1.0fb−1of proton–proton collisions at√s=7TeV,and is found to be ... -
Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s → D_s^-(3) π decays
(Physics Letters B , 2012, Vol. 709, No. 3 (Març), 2012-03-19)The B^0_s-\bar{B}^0_s oscillation frequency Delta m_s is measured with 36 pb^{-1} of data collected in pp collisions at \sqrt{s} = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of ... -
Measurement of the branching fraction of the B0→D+sπ− decay
(European Physical Journal C, 2021, Vol. 81, No. 314, 2021-04)A branching fraction measurement of the B0→D+sπ− decay is presented using proton–proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of 5.0fb−1. The ...