0000000000462599

AUTHOR

Mauro Ronzani

showing 5 related works from this author

Observation of s-Channel Production of Single Top Quarks at the Tevatron

2014

We report the first observation of single-top-quark production in the s channel through the combination of the CDF and D0 measurements of the cross section in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7fb-1 per experiment. The measured cross section is σs=1.29-0.24+0.26pb. The probability of observing a statistical fluctuation of the background to a cross section of the observed size or larger is 1.8×10-10, corresponding to a significance of 6.3 standard deviations for the presence of an s-channel contribution to the production of single-top quarks. © 2014 American Physical Society.

P(P)OVER-BAR COLLISIONSTevatronGeneral Physics and AstronomyCHANGING NEUTRAL CURRENTS01 natural sciences7. Clean energyStandard deviationHigh Energy Physics - ExperimentCHANGING NEUTRAL CURRENTS; B-JET IDENTIFICATION; P(P)OVER-BAR COLLISIONS; FERMILAB-TEVATRON; ROOT-S=1.96 TEV; COUPLINGS; DETECTOR; SEARCH; FB(-1); DECAYSHigh Energy Physics - Experiment (hep-ex)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]SCALEPhysicsB-JET IDENTIFICATION02 Physical SciencesPhysicsSigmaCOUPLINGSROOT-S=1.96 TEVPhysical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGProduction (computer science)Communication channelFERMILAB-TEVATRONQuarkParticle physicsGeneral PhysicsPhysics MultidisciplinaryFOS: Physical sciencesParticle Physics; Collider Physics; Top quark; Single top productionDECAYSCDF CollaborationNuclear physicsPhysics and Astronomy (all)Cross section (physics)SEARCH0103 physical sciencesParticle Physics010306 general physicsDETECTORFB(-1)Science & Technology010308 nuclear & particles physicshep-exTop quarkCollider PhysicsExperimental High Energy PhysicsSingle top productionHigh Energy Physics::ExperimentEnergy (signal processing)D0 Collaboration
researchProduct

Combination of CDF and D0 W-Boson mass measurements

2013

We summarize and combine direct measurements of the mass of the W boson in √s=1.96 TeV proton-antiproton collision data collected by CDF and D0 experiments at the Fermilab Tevatron Collider. Earlier measurements from CDF and D0 are combined with the two latest, more precise measurements: a CDF measurement in the electron and muon channels using data corresponding to 2.2 fb-1 of integrated luminosity, and a D0 measurement in the electron channel using data corresponding to 4.3 fb-1 of integrated luminosity. The resulting Tevatron average for the mass of the W boson is M W=80387±16 MeV. Including measurements obtained in electron-positron collisions at LEP yields the most precise value of M W…

Particle physicsNuclear and High Energy PhysicsInclusive production with identified leptonsSTANDARD MODELTevatronDecays of W bosonsFOS: Physical sciencesddc:500.201 natural sciences7. Clean energyStandard Modellaw.inventionHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)law0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]photonsFermilab010306 general physicsColliderTEVATRONNuclear ExperimentDETECTORGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)BosonPhysicsLuminosity (scattering theory)MuonLarge Hadron Collider010308 nuclear & particles physicsApplications of electroweak models to specific processesHigh Energy Physics::Phenomenologyor other nonhadronic particlesW bosonsW bosons; Applications of electroweak models to specific processes; Decays of W bosons; Inclusive production with identified leptons; photons; or other nonhadronic particlesExperimental High Energy PhysicsCDFPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentLHCSTANDARD MODEL; LHC; DETECTOR
researchProduct

Measurement of Higgs boson production in the diphoton decay channel inppcollisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector

2014

A measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 4.5 fb(-1) of proton-proton collisions data at root s = 7 TeV and 20.3 fb(-1) at root s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. The number of observed Higgs boson decays to diphotons divided by the corresponding Standard Model prediction, called the signal strength, is found to be mu = 1.17 +/- 0.27 at the value of the Higgs boson mass measured by ATLAS, m(H) = 125.4 GeV. The analysis is optimized to measure the signal strengths for individual Higgs boson production processes at this value of m(H). They are found to be mu(ggF) = 1.32…

PhysicsNuclear and High Energy PhysicsParticle physicsPhotonLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::Phenomenology7. Clean energy01 natural sciencesStandard ModelVector bosonGluonNuclear physicsmedicine.anatomical_structure13. Climate actionAtlas (anatomy)0103 physical sciencesHiggs bosonmedicineHigh Energy Physics::ExperimentCenter of mass010306 general physicsPhysical Review D
researchProduct

Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element Vtb

2015

et al.

QuarkTop quarkParticle physicsP(P)OVER-BAR COLLISIONS; JET IDENTIFICATION; ROOT-S=7 TEV; HIGGS-BOSON; CHANNEL; DETECTOR; ATLASJET IDENTIFICATIONmeasured [channel cross section]P(P)OVER-BAR COLLISIONSTevatronGeneral Physics and AstronomyFOS: Physical sciencesmeasured [cross section]Astrophysics::Cosmology and Extragalactic Astrophysicssingle production [top]7. Clean energyHigh Energy Physics - ExperimentMeasurements of cross sections for single-top-quark productionNuclear physicsproton-antiproton collisionsHigh Energy Physics - Experiment (hep-ex)Physics and Astronomy (all)CHANNELDZEROddc:550[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Batavia TEVATRON Collcross section measurementDETECTORPhysicsscattering [anti-p p]1960 GeV-cmsROOT-S=7 TEVCabibbo–Kobayashi–Maskawa matrixSigmaATLASMeasurements of cross sections for single-top-quark production; proton-antiproton collisions; cross section measurement2 [dimension]missing-energy [transverse energy]CKM matrixExperimental High Energy PhysicsHiggs bosonComputingMethodologies_DOCUMENTANDTEXTPROCESSINGCDFHigh Energy Physics::ExperimentPhysics and Astronomy (all) Nuclear and high energy physicscolliding beams [anti-p p]coupling [quark]HIGGS-BOSON
researchProduct

Tevatron constraints on models of the Higgs boson with exotic spin and parity using decays to bottom-antibottom quark pairs.

2015

et al.

QuarkParticle physicsHiggs bosonSTANDARD MODELTevatronFOS: Physical sciencesGeneral Physics and AstronomyATLAS DETECTORD0 EXPERIMENT01 natural sciences7. Clean energy530CDF collaborationHigh Energy Physics - ExperimentVector bosonNuclear physicsproton-antiproton collisionsHigh Energy Physics - Experiment (hep-ex)Physics and Astronomy (all)SEARCH0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Fysik010306 general physicsPhysics and Astronomy (all). B-JET IDENTIFICATIONCDF collaboration; Higgs boson; proton-antiproton collisionsDETECTORBosonPhysicsB-JET IDENTIFICATIONLarge Hadron Collider010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyATLASD0 experimentPARTON DISTRIBUTIONSExperimental High Energy PhysicsPhysical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGHiggs bosonATLAS; Higgs; Hadron-Hadron ScatteringHigh Energy Physics::ExperimentLHCB-JET IDENTIFICATION; STANDARD MODEL; PARTON DISTRIBUTIONS; ATLAS; DETECTOR; D0 EXPERIMENT; LHC; SEARCH
researchProduct