Scientific Open-access Literature Archive and Repository
Not a member yet
16397 research outputs found
Sort by
DPS cross-section measurement from ssWW bosons production in p-p collisions at CMS
Get PDFThe status of the search for same-sign WW production via doubleparton scatttering is presented, based on the study on proton-proton collision data using dimuon and electron-muon final states within the CMS experiment Both the results from the 8 and 13 TeV measurements will be shown
Horizon 2020 - European research funding
Get PDFHorizon 2020 is the current European Framework Programme for Research and Innovation. Started on 1 January 2014 as a powerful mean to drive economic growth and jobs creation, Horizon 2020 couples Research and Innovation in its structure. From the perspective of a potential applicant, being informed about all the aspects of Horizon 2020 is relevant for a better chance of success. The Participant Portal of the European Commission is still the main source of information: recently the H2020 Dashboard has been added allowing a deeper knowledge about the Framework Programme. In this paper the H2020 Dashboard is exploited as an instrument to point out some interesting figures starting from a comprehensive Horizon 2020 perspective, then focusing on the Excellent Science Pillar and finally analysing and comparing data from single countries
The energy calibration procedure of the Muon g − 2 experiment at Fermilab
Get PDFThe muon anomaly, aμ, is a low energy observable that can be both measured and computed with high precision, therefore it provides an important test of the Standard Model (SM) and it is a sensitive probe for new physics. The Muon g − 2 experiment at Fermilab aims to measure aμ with a precision of 0.14 ppm, four times better than the previous experiment at BNL. In this paper I will introduce the calorimeter system and the energy calibration procedure using lost muons
Study of the production of heavy quarkonium states at CMS
Get PDFStudies of the production of heavy quarkonium states are fundamental to improve our understanding of QCD and hadron formation. In fact, the heavy quark masses allow the application of theoretical tools that are relatively insensitive to non-perturbative effects. In this field, the CMS experiment at LHC can give significant contributions. Thanks to a specific dimuon trigger strategy, CMS collected large samples of quarkonium states which decay to dimuons from pp collisions at 7, 8 and 13 TeV. Some of the latest CMS quarkonium production results are presented in this paper, such as the measurement of differential production crosssections of J/ψ and ψ(2S) charmonium and Υ(nS) (n = 1, 2, 3) bottomonium states in proton-proton collisions at √s = 13 TeV, on data samples corresponding to an integrated luminosity of 2.3 fb−1 for the J/ψ and 2.7 fb−1 for the other mesons. Each double-differential cross-section is measured as a function of rapidity and transverse momentum
Measurement of Higgs boson properties in the four-lepton final state at √s = 13 TeV at CMS
Get PDFThis paper reports the measurement of Higgs boson properties performed in the four-lepton final state using proton-proton collision data collected by the CMS experiment at CERN in 2016 at a centre-of-mass energy of 13 TeV. In particular, the measurement of the signal strength modifier (defined as the ratio of the observed Higgs boson rate in the four-lepton decay channel to the Standard
Model expectation) is presented both inclusively and separately for the individual Higgs boson production modes. The measurements of the Higgs boson mass and width are also reported
Measurement of the Higgs boson properties in the diphoton final state with the ATLAS detector
Get PDFProperties of the Higgs boson are measured in the two-photon final state using 36.1 fb−1 of proton-proton collision data recorded at √s = 13 TeV by the ATLAS experiment at the Large Hadron Collider. Cross-section measurements for the production of a Higgs boson through the main production processes are reported. Furthermore, the production of the Higgs boson decaying to two isolated photons in a fiducial region closely matching the experimental selection of the photons is measured. Finally the measurement of the mass of the Higgs boson in the H → γγ decay channel and its combination with the H → ZZ∗ → 4 decay channel is reported
ENUBET —Enhanced NeUtrino BEams from kaon Tagging
Get PDFThe ENUBET ERC-CoG project is funded (2016–2021) to prove lepton production monitoring in the decay tunnel of neutrino beams at single-particle level thus providing a 1% measurement of the flux at source. In particular, the
three-body semileptonic decay of the kaons monitored by large angle positron production offers a fully controlled νe source at the GeV scale for a new generation of short baseline experiments. A new static focusing system has been validated in 2018, which is very promising in view of operating the system in time-tagged mode. Together with progresses in the design of the neutrino beamline, we report here also the performance of the positron tagger prototypes tested at CERN in 2017–2018
El puente de Barranquilla más de 40 años en servicio. Riccardo Morandi y la estética de la Ingeniería. Un puente cultural entre Italia y Colombia
No full textTechniques and methods of seismic data processing in active volcanic areas: some applications to multichannel seismic profiles (Gulf of Naples, Southern Tyrrhenian sea, Italy)
Get PDFThe techniques of seismic surveying,especially reflection seismic,considerably varied during lastyear’s.The contribution to this variation mainly came from the oil industry,which has developed the geophysical methods for oil searching.The basic techniques of seismic exploration consist of the generation of seismic waves artificially in the ground(source)and of the measurement of the requested times to cover thesource receiver path.Seismic data processing of three multichannel seismic profiles located in the Gulf of Naples for an overall length of 150 kilometers is herein presented.The techniques of seismic processing used forthe elaboration of the
seismic data are up-to date.Some of them are based on complex mathematical models,allowing obtaining good velocity analysis for the production of stacked sections,ready to be interpreted.In this paper theprocedures of processing of multichannel seismic data starting from the field data are shown.Sketch diagrams of the elaboration processes applied during several phases of the whole processing have
been constructed.The used software are the Promax2D(LandmarkLtd.)and the Seismic Unix(Colorado School of Mines).The steps of the seismic data processes included thepre processing,the sorting,the velocity analysis,the normal move-out(NMO),the stacking, the band-pass filtering, the multiple removals, the predictive deconvolution and the spiking deconvolution
Ion transport and heating in simulations of plasma turbulence
Get PDFThe processes of particle diffusion and acceleration are currently being tackled worldwide because of their major implications in astrophysical and laboratory plasma physics. Despite the efforts of the whole community, a comprehensive theoretical description of such phenomena is still missing. In this work, a two-dimensional (2D) version of the Non-Linear Guiding Center (NLGC) theory is
derived, in order to describe particle transport in some particular scenarios. The theory is validated with 2.5D kinetic simulations of plasma turbulence. Simulations
parameters are chosen so that several scenarios can be described, going from the solar corona to the solar wind and the magnetosheath. Finally, the role of turbulence
coherent structures on particle acceleration and energization is investigated. Current sheets are found to be of major importance in this scenario and that there is a scale-resonance interaction between the current sheet size and the particles’ Larmor radii