Search results for "Tev"

showing 10 items of 748 documents

Study of J/ψ Production in Jets

2017

The production of $J/\psi$ mesons in jets is studied in the forward region of proton-proton collisions using data collected with the LHCb detector at a center-of-mass energy of 13 TeV. The fraction of the jet transverse momentum carried by the $J/\psi$ meson, $z \equiv p_{\rm T}(J/\psi)/p_{\rm T}({\rm jet})$, is measured using jets with $p_{\rm T}({\rm jet}) > 20$ GeV in the pseudorapidity range $2.5 < \eta({\rm jet}) < 4.0$. The observed $z$ distribution for $J/\psi$ mesons produced in $b$-hadron decays is consistent with expectations. However, the results for prompt $J/\psi$ production do not agree with predictions based on fixed-order non-relativistic QCD. This is the first measurement o…

13000 GeV-cmsQuantum chromodynamics: Experimental testNuclear TheoryGeneral Physics and Astronomy01 natural sciences7. Clean energytransverse momentum [jet]Settore FIS/04 - Fisica Nucleare e SubnucleareHigh Energy Physics - ExperimentParticle production Quantum chromodynamicsddc:550scattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]LHCb - Abteilung HintonParticle productionNuclear ExperimentQuantum chromodynamicsPhysicsJet (fluid)Large Hadron Collider02 Physical SciencesHadron-induced high- and super-high-energy interactions (energy > 10 GeV): Inclusive production with identified hadronParticle physicsQuarkoniumPROMPTJ/psi mesonLeptonic semileptonic and radiative decays of J/ψ Υ and other quarkoniaCERN LHC Collhadroproduction [J/psi(3100)]Pseudorapidityrapidity [jet]root S=7 TEVPhysical SciencesLHCcolliding beams [p p]Particle Physics - ExperimentParticle physicsGeneral PhysicsMesonPSI(2S)Astrophysics::High Energy Astrophysical PhenomenaPhysics Multidisciplinarynonrelativistic [quantum chromodynamics]OCTET QUARKONIA PRODUCTIONNOJets in large-Q2 scatteringNuclear physicsOctet quarkonia production PP collision root S=7 TEV PSI(2S) physics prompt decayPHYSICSPhysics and Astronomy (all)OCTET QUARKONIA PRODUCTION; PP COLLISIONS; ROOT-S=7 TEV; PSI(2S); PHYSICS; PROMPT; DECAY0103 physical sciencesRapiditySDG 7 - Affordable and Clean Energy010306 general physics/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyScience & TechnologyPP COLLISIONSROOT-S=7 TEV010308 nuclear & particles physicsPP collisionhep-exHigh Energy Physics::PhenomenologyLHC-BHEPLHCbHigh Energy Physics::ExperimentHeavy quarkoniaFísica de partículesExperimentsDECAYQuantum chromodynamicsexperimental results
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Measurement of the W boson mass

1996

The W boson mass is measured using proton-proton collision data at root s = 13 TeV corresponding to an integrated luminosity of 1.7fb(-1) recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/p(T) distribution of a sample of W ->mu y decays and the phi* distribution of a sample of Z -> mu mu decays the W boson mass is determined to be

13000 GeV-cmsTevatronparton: distribution functionQC770-798W: leptonic decay7. Clean energy01 natural sciencesLuminosityPhysics Particles & FieldsSubatomär fysikHadron-Hadron scattering (experiments)scattering [p p]Electroweak interactionNuclear Experimentparticle identification [muon]Settore FIS/01PhilosophyPhysicsCoupling (probability)CERN LHC CollHadron colliderPhysical SciencesTransverse masscolliding beams [p p]distribution function [parton]Collider Detector at FermilabParticles and fieldCOLLISIONSp p: scatteringCERN PBARP COLLIDERAstrophysics::High Energy Astrophysical PhenomenaW: mass: measuredStandard ModelNuclear physicsddc:530010306 general physics0206 Quantum PhysicsMuonScience & Technology010308 nuclear & particles physicsWeinberg angleHEPFERMILAB TEVATRONElectroweak interaction Hadron-Hadron scattering (experiments) QCD For- ward physicsCDFp p: colliding beamsPhysics::Instrumentation and DetectorsElectron–positron annihilation= 1.8 TEVGeneral Physics and Astronomy= 1.8 TEV; PBARP COLLISIONS; DECAYVector bosonHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Computer Science::Systems and ControlSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PhysicFermilabBosonPhysics0105 Mathematical PhysicsStatistics::ApplicationsSettore FIS/01 - Fisica Sperimentalestatistical [error]Nuclear & Particles PhysicsCENTRAL TRACKING CHAMBERerror: statisticalCENTRAL ELECTROMAGNETIC CALORIMETERTransverse momentum0202 Atomic Molecular Nuclear Particle and Plasma PhysicsLHCmass: measured [W]Particle Physics - ExperimentStatistics::TheoryParticle physicsNuclear and High Energy Physicselectroweak interaction: precision measurementRegular Article - Experimental PhysicsTRANSVERSE ENERGYFOS: Physical sciencesmuon: particle identification530Particle decayPBARP COLLISIONSNuclear and particle physics. Atomic energy. Radioactivityprecision measurement [electroweak interaction]0103 physical sciencesForward physicVECTOR BOSONElectroweak interaction Hadron-Hadron scattering (experiments) QCD Forward physicsCERN PBARP COLLIDER; CENTRAL ELECTROMAGNETIC CALORIMETER; CENTRAL TRACKING CHAMBER; = 1.8 TEV; PARTON DISTRIBUTIONS; FERMILAB TEVATRON; VECTOR BOSON; TRANSVERSE ENERGY; CDF; COLLISIONShep-exHigh Energy Physics::PhenomenologyLHC-BQCDleptonic decay [W]LHCbPARTON DISTRIBUTIONSMass spectrumForward physicsPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentDECAYHumanitiesexperimental results
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"Exclusion contour 2(exp.)" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transvers…

2018

Expected exclusion contour at 95% CL as a function of tanBeta and the SUSY-breaking mass scale Lambda.

13000.0CLSGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Exclusion contour 2(obs.)" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transvers…

2018

Observed exclusion contour at 95% CL as a function of tanBeta and the SUSY-breaking mass scale Lambda.

13000.0CLSGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 7" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum us…

2018

1$\tau$ Compressed SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 8" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum us…

2018

1$\tau$ MediumMass SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 10" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum u…

2018

2$\tau$ HighMass SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 9" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum us…

2018

2$\tau$ Compressed SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 11" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum u…

2018

2$\tau$ multibin SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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"Efficiency 12" of "Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum u…

2018

2$\tau$ GMSB SR eff.

13000.0EFFGMSB M(MESS) = 250 TEV N5 = 3 MU &gt; 0 CGRAV = 1
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