5,016 research outputs found
Anna Colin Lebedev: Ucrania y Rusia, una tragedia postsoviética
No full textPor supuesto, no podría ser de otro modo. Las editoriales señeras, siguiendo la demanda del mercado, han encargado, traducido y publicado todo lo disponible sobre el conflicto ruso-ucraniano, así como sobre sus raíces históricas. Entre las novedades al respecto, podemos reparar en el volumen que presenta la profesora Anna Colin Lebedev, un volumen significativamente titulado Jamais frères ? Ukraine et Russie : une tragédie post-soviétique (Seuil). Y esto nos dice en la introducción: "En el ..
Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
No full textThis Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±0.04(syst) and CJ/ψK0S=0.03±0.09(stat)±0.01(syst). Both values are consistent with the current world averages and within
expectations from the Standard Model
Dynamic Path Planning for a 7-DOF Robot Arm
No full textKlanke S, Lebedev DV, Haschke R, Steil JJ, Ritter H. Dynamic Path Planning for a 7-DOF Robot Arm. In: Int. Conf. Intelligent Robots and Systems. IEEE; 2006: 3879-3884
Measurement of the D+/- production asymmetry in 7 TeV pp collisions
No full textThe asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed
First observation of Bs → J/ψf0(980) decays
No full textUsing data collected with the LHCb detector in proton–proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the system. Using a fit to the π+π− mass spectrum with interfering resonances gives . In the interval ±90 MeV around 980 MeV, corresponding to approximately two full f0 widths we also find , where in both cases the uncertainties are statistical and systematic, respectively
Correction: Strokova et al. Interaction Mechanisms in «Portland Cement—Functional Polymer Mineral Additives» Binder Produced by Different Methods. Materials 2025, 18, 3178
No full textMikhail Lebedev was not included as an author in the original publication [...
Measurement of the inclusive φ cross-section in pp collisions at √s=7 TeV
No full textThe cross-section for inclusive φ meson production in pp collisions at a centre-of-mass energy of √s = 7 TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section is measured as a function of the φ transverse momentum pT and rapidity y in the region 0.6< pT <5.0 GeV/c and 2.44< y <4.06. The cross-section for inclusive φ production in this kinematic range is σ(pp→φX)=1758±19(stat) +43−14(syst)±182(scale) μb, where the first systematic uncertainty depends on the pT and y region and the second is related to the overall scale. Predictions based on the Pythia 6.4 generator underestimate the cross-section
Equivalence of many-gluon Green's functions in the Duffin-Kemmer-Petieu and Klein-Gordon-Fock statistical quantum field theories
No full textWe prove the equivalence of many-gluon Green's functions in the Duffin-Kemmer-Petieu and Klein-Gordon-Fock statistical quantum field theories. The proof is based on the functional integral formulation for the statistical generating functional in a finite-temperature quantum field theory. As an illustration, we calculate one-loop polarization operators in both theories and show that their expressions indeed coincide.Univ Estadual Paulista, Inst Fis, São Paulo, BrazilPN Lebedev Phys Inst, Moscow 117924, RussiaUniv Estadual Paulista, Inst Fis, São Paulo, Brazi
Author Correction: Local Josephson vortex generation and manipulation with a Magnetic Force Microscope (Nature Communications, (2019), 10, 1, (4009), 10.1038/s41467-019-11924-0)
No full text© 2019, The Author(s). The original version of this Article contained an error in the spelling of the author Christophe Brun, which was incorrectly given as Chritophe Brun. Additionally this Article omitted from the author list the seventh author Nickolay Lebedev, who is from the ‘Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia’. These errors have now been corrected in both the PDF and HTML versions of the Article
- …
