Articles publicats en revistes: Envíos recientes
Mostrando ítems 181-200 de 538
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A study of the Z production cross-section in pp collisions at s√=7TeV using tau final states
(Journal of High Energy Physics, 2013, Vol. 2013, No.1 (Gener), 2013-01-16)A measurement of the inclusive Z → ττ cross-section in pp collisions at s√=7TeV is presented based on a dataset of 1.0 fb−1 collected by the LHCb detector. Candidates for Z → τ τ decays are identified ... -
Measurement of |Vcb| with Bs → Ds(*) −μ +νμ decays
(Physical Review D, 2020, Vol. 101, n.7 (Abril), 2020-03)The element |Vcb| of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic B0s decays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies ... -
Measurement of CP asymmetries in the decays B 0 → K *0 μ + μ − and B + → K + μ + μ −
(Journal of High Energy Physics, 2014, Vol. 2014, No.9 (Setembre), 2014-09-30)The direct CP asymmetries of the decays B 0 → K *0 μ + μ − and B + → K + μ + μ − are measured using pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected with the LHCb detector. ... -
Study of B0(s)→K0Sh+h′− decays with first observation of B0s→K0SK±π∓ and B0s→K0Sπ+π−
(Journal of High Energy Physics, 2013, Vol. 2013, No.10 (Octubre), 2013-10-22) -
Study of η − η′ mixing from measurement of B 0(s) → J/ψη(′) decay rates
(Journal of High Energy Physics, 2015, Vol. 2015, No.1 (Gener), 2015-01-08)A study of B and Bs meson decays into J/ψ η and J/ψ η′ final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LCHb experiment ... -
Measurement of CP asymmetry in B 0 s → D ∓ s K ± decays
(Journal of High Energy Physics, 2014, Vol. 2014, No.11 (Novembre), 2014-11-13)We report on measurements of the time-dependent CP violating observables in B 0 s → D ∓ s K ± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find ... -
Measurement of the Z+b-jet cross-section in pp collisions at s√ = 7 TeV in the forward region
(Journal of High Energy Physics, 2015, Vol. 2015, No.1 (Gener), 2015-01-13)The associated production of a Z boson or an off-shell photon γ * with a bottom quark in the forward region is studied using proton-proton collisions at a centre-of-mass energy of 7 TeV. The Z bosons ... -
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 the Semileptonic C P Asymmetry in B0 - ̄B0 Mixing
(Physical Review Letters , 2015, Vol. 114, No. 4 (Gener), 2015-01-28)The semileptonic CP asymmetry in B0-¯B0 mixing, adsl, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb−1, recorded by the LHCb experiment. Semileptonic ... -
Measurement of the forward Z boson production cross-section in pp collisions at s√=7 TeV
(Journal of High Energy Physics, 2015, Vol. 2015, No.8 (Agost), 2015-08-10)A measurement of the production cross-section for Z bosons that decay to muons is presented. The data were recorded by the LHCb detector during pp collisions at a centre-of-mass energy of 7 TeV, and ... -
Forward production of Υ mesons in pp collisions at s√=7 and 8 TeV
(Journal of High Energy Physics, 2015, Vol. 2015, No.11 (Novembre), 2015-11-16)The production of Υ mesons in pp collisions at s√=7 and 8 TeV is studied with the LHCb detector using data samples corresponding to an integrated luminosity of 1 fb−1 and 2 fb−1 respectively. The ... -
Measurement of CP observables in B 0 → DK ∗0 with D →K + K −
(Journal of High Energy Physics, 2013, Vol. 2013, No.3 (Març), 2013-03-12)The decay B 0 → DK *0 and the charge conjugate mode are studied using 1.0 fb−1 of pp collision data collected by the LHCb experiment at s√=7 TeV in 2011. The CP asymmetry between the B 0 → DK *0 and the ... -
Measurement of CP violation in B0→ D∗±D∓ decays
(Journal of High Energy Physics, 2020, 147, 2020-02)The decay-time-dependent CP asymmetry in B0→ D∗±D∓ decays is mea- sured using a data set corresponding to an integrated luminosity of 9 fb−1 recorded by the LHCb detector in proton-proton collisions at ... -
Differential branching fraction and angular analysis of the B+ → K+ μ+ μ− decay
(Journal of High Energy Physics, 2013, Vol. 2013, No.2 (Febrer), 2013-02-19)The angular distribution and differential branching fraction of the decay B +→ K + μ + μ − are studied with a dataset corresponding to 1.0fb−1 of integrated luminosity, collected by the LHCb experiment. ... -
Measurement of the B¯0−B0 and B¯0s−B0s production asymmetries in pp collisions at s√=7 TeV
(Physics Letters B , 2014, Vol. 739 (Desembre), 2014-12-12)The B¯0−B0 and B¯0s−B0s production asymmetries, AP(B0) and AP(B0s), are measured by means of a time-dependent analysis of B0→J/ψK∗0, B0→D−π+ and B0s→D−sπ+ decays, using a data sample corresponding to ... -
First observation of the decay Bbar0s->D0K*0 and a measurement of the ratio of branching fractions Br(Bbar0s->D0K*0) / Br(Bbar0s->D0 rho0)
(Physics Letters B , 2011, Vol. 706, No. 1 (Novembre), 2011-11-30)The first observation of the decay B0s →D0K∗0 using pp data collected by the LHCb detector at a centreof- mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1, is reported. A ... -
Search for the rare decays B0s → μ+ μ− and B0 → μ+ μ-
(Physics Letters B , 2011, Vol. 699, No.5 (Maig), 2011-05-23)A search for the decays B0s →μ+μ− and B0→μ+μ− is performed with about 37 pb−1 of pp collisions at √ s = 7 TeV collected by the LHCb experiment at the Large Hadron Collider at CERN. The observed numbers ... -
Differential branching fractions and isospin asymmetries of B → K (*) μ + μ − decays
(Journal of High Energy Physics, 2014, Vol. 2014, No.6 (Juny), 2014-06-26)The isospin asymmetries of B → Kμ + μ − and B → K * μ + μ − decays and the partial branching fractions of the B 0 → K 0 μ + μ −, B + → K + μ + μ − and B + → K *+ μ + μ − decays are measured as functions ... -
Measurement of b-hadron branching fractions fortwo-body decays into charmless charged hadrons
(Journal of High Energy Physics, 2012, Vol. 2012, No.10 (Octubre), 2012-10-04)Based on data corresponding to an integrated luminosity of 0.37 fb−1 collected by the LHCb experiment in 2011, the following ratios of branching fractions are measured: $ B(B0→π+π−)/B(B0→K+π−)=0.262±0 ... -
Addendum: Observation of double charm production involving open charm in pp collisions at√s= 7 TeV
(Journal of High Energy Physics, 2041, Vol. 2014, No.3 (Març), 2014-03-24)