[PDF] Top 20 Redes cooperativas: hacia un modelo de gestión colaborativa

... π ± π 0 e + e − is relevant as the virtual photon giving the e + e − pair can be emitted either by Inner Bremsstrahlung (IB) or by Direct Emission (DE). These components, as well as their interference, o ff er ... See full document

... The NA48/2 experiment at CERN has collected large samples of charged kaons decaying into a pion and two muons for the search of heavy ...successor NA62 has set new limits on the rate of charged kaon decay ... See full document

... the NA48/2 experiment at the CERN SPS collected the world largest sample of charged kaon ...the NA62 collaboration used the NA48/2 experimental setup at somewhat modified data taking conditions ( R K ... See full document

... The NA62 apparatus for the K + → π + ν ν ¯ measurement, developed and built between 2008 and 2014 and replacing the NA48 one, is sketched in figure ...beam from CERN SPS impinges on a Be target ... See full document

... new results on upper limits for the search of Heavy Neutral Leptons (HNL) with data collected by NA48/2 (2003-2004), NA62-RK (2007) and NA62 (2015) CERN ... See full document

... Both signal and normalization candidates are reconstructed from three-track vertices with the track reconstructed momenta in the range (2–60) GeV/c. The tracks are required to be in time within 5 ns of each other ... See full document

... the dilepton mass spectra are expected to be related to charm quark production and the thermal radia- tion of the QGP [10]. At higher center-of-mass energies, the dilepton production from charm quarks are ... See full document

... asymmetry measurement at few percent statistic level, we need a large beam polarization, high luminosity and no intrinsic experimental asymmetry (no false asymmetry at the level of 0.1 ppm). One key element of such an ... See full document

... resulted from a survey of the first EGRET catalogue of blazars (Fichtel et ...pendent from GeV ...Lacs from X-ray and radio catalogues (Costamante & Ghisellini 2002) yielded a number of good ... See full document

... nomena. Recent soft-QCD measurements include studies of hadronic event shapes and double-parton ...that from measurements of jets or vector-bosons, and are sensitive to the gluon density of the ... See full document

... SIII results of the masses and widths of the X(p p) [30], ¯ X(1810) [34], X(1835) [37] and X(1870) [38] are dis- played in ...different from any of ... See full document

... events from cosmic rays or surrounding rocks, and the ID is the main neutrino detector, which demonstrates excellent µ/e separation allowing Cherenkov rings produced by muons ...5) from neutrino ... See full document

... of results in beauty and charmed meson ...most recent results on rare B decays, CP violation, and charmless B meson decays will be given along with an outlook to the physics perspectives and to the ... See full document

... t t ¯ events with two leptons ( ee , eμ , or μμ ) and accompanying jets in 4 . 3 f b −1 of data collected. We analyze the kinematically underconstrained dilepton events by integrating over their neutrino rapidity ... See full document

... the “long” direction when compared to the “transvere” directions. These results are compared to the predictions of two hydrodynamics codes. Both models, even though they di ff er significantly on their ... See full document

... probing the highest mass scales among the rare meson decays. The largest deviations from SM are expected in models with new sources of flavour viola- tion, owing to weaker constraints from B physics 8 , 9). ... See full document

... coming from the theoretical prediction of momentum spectra from di ff erential cross ...proof from comparison with experimental data are necessary in this ...seen from effects of two-photon ... See full document

... experimental results. This paper reviews the most recent PHENIX results on the light flavour hadron production, yields and angular correlations of the direct photons in heavy-ion collisions as well ... See full document

... Abstract. Operating 40 km off the coast of France since 2007, the ANTARES detector is the largest deep-sea neutrino telescope in the Northern Hemisphere with an instrumented volume of more than 0.01 cubic kilometers. It ... See full document

... The experimental signature consists only in detecting two photons with missing trans- verse momentum. The photon energy is measured by a Cesium Iodide calorimeter (CsI) located downstream of the decay volume. By assuming ... See full document