0000000000496303

AUTHOR

Jorg Manfred Meyer

showing 5 related works from this author

Evidence for Zc±(3900) in semi-inclusive decays of b -flavored hadrons

2018

We present evidence for the exotic charged charmoniumlike state Zc±(3900) decaying to J/ψπ± in semi-inclusive weak decays of b-flavored hadrons. The signal is correlated with a parent J/ψπ+π- system in the invariant-mass range 4.2-4.7 GeV that would include the exotic structure Y(4260). The study is based on 10.4 fb-1 of pp collision data collected by the D0 experiment at the Fermilab Tevatron collider. © 2018 authors. Published by the American Physical Society.

PhysicsParticle physics010308 nuclear & particles physicsHadronTevatronD0 experiment01 natural scienceslaw.inventionlaw0103 physical sciencesHigh Energy Physics::ExperimentStatistical analysisFermilab010306 general physicsColliderPhysical Review D
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Measurement of the Effective Weak Mixing Angle in pp¯→Z/γ*→ℓ+ℓ− Events

2018

We present a measurement of the effective weak mixing angle parameter sin(2)theta(l)(eff) in p (p) over bar -> Z/gamma* -> mu(+)mu(-) events at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron Collider and corresponding to 8.6 fb(-1) of integrated luminosity. The measured value of sin(2)theta(l)(eff)[mu mu] = 0.23016 +/- 0.00064 is further combined with the result from the D0 measurement in p (p) over bar -> Z/gamma* -> e(+)e(-) events, resulting in sin(2)theta(l)(eff)[comb] = 0.23095 +/- 0.00040. This combined result is the most precise measurement from a single experiment at a hadron collider and is the most precise determination using the couplin…

QuarkPhysicsLuminosity (scattering theory)Large Hadron Collider010308 nuclear & particles physicsTevatronGeneral Physics and Astronomy01 natural sciences7. Clean energylaw.inventionNuclear physicslaw0103 physical sciencesHigh Energy Physics::ExperimentFermilab010306 general physicsColliderMixing (physics)Bar (unit)Physical Review Letters
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Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting

2016

We measure the top quark mass in dilepton final states of top-antitop events in proton-antiproton collisions at sqrt(s) = 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb^-1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. We also improve the calibration of jet energies using the calibration determined in top-antitop to lepton+jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. The measured top quark mass is mt = 173.32 +/- 1.36(stat) +/- 0.85(syst) GeV.

Top quarkdependence [flavor]TevatronATLAS DETECTORJet (particle physics)pair production [top]7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentPhysics Particles & FieldsSubatomär fysikHigh Energy Physics - Experiment (hep-ex)DZEROSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]HADRON COLLIDERSBatavia TEVATRON CollFermilabNuclear ExperimentGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)Physicsscattering [anti-p p]Luminosity (scattering theory)PhysicsNuclear & Particles Physicslcsh:QC1-999Physics NuclearPhysical SciencesPOLEflavor [quark]mass: measured [top]Neutrinotop quark mass; dilepton decays; neutrino weightingdata analysis methodParticle physicsNuclear and High Energy PhysicsAstrophysics::High Energy Astrophysical PhenomenaSTANDARD MODELFOS: Physical sciencesAstronomy & AstrophysicsAccelerator Physics and Instrumentation530Standard ModelNuclear physics0202 Atomic Molecular Nuclear Particle And Plasma Physicsfinal state [dilepton]0103 physical sciencesMODEL HIGGS-BOSONddc:530High Energy Physics010306 general physics1960 GeV-cmsScience & TechnologyPP COLLISIONSIDENTIFICATION010308 nuclear & particles physicsDATA processing & computer scienceHigh Energy Physics::PhenomenologyAcceleratorfysik och instrumenteringenergy [jet]PRODUCTION CROSS-SECTION(MS)OVER-BAR MASSEScalibration [jet]Experimental High Energy PhysicsPhysics::Accelerator PhysicsTEVHigh Energy Physics::Experimentddc:004statisticalcolliding beams [anti-p p]lcsh:Physicsexperimental resultsLepton
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Tevatron Run II combination of the effective leptonic electroweak mixing angle

2018

The Ministry of Science and Innovation and the Consolider-Ingenio 2010 Program and the European Union community Marie Curie Fellowship Contract No. 302103.

Drell-Yan processsemianalytical programsPhysics and Astronomy (miscellaneous)FERMION PAIR PRODUCTIONUPGRADETevatronhadron-colliders01 natural sciencesHigh Energy Physics - ExperimentPhysics Particles & Fieldselectron: pair productionHigh Energy Physics - Experiment (hep-ex)MONTE-CARLOUNIVERSAL MONTE-CARLOELECTROMAGNETIC CALORIMETERDZERO[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]HADRON COLLIDERSangular distributionBatavia TEVATRON CollMonte CarloPhysicsscattering [anti-p p]gauge bosonPhysicsElectroweak interactionDrell–Yan processWeinberg anglespontaneous symmetry breaking [electroweak interaction]muon: pair productionPhysical Sciencesmixing angle [electroweak interaction]bosonPHOTOSmass: measured [W]asymmetryParticle physicsFOS: Physical sciencesSEMIANALYTICAL PROGRAMddc:500.2Astronomy & Astrophysicselectroweak interaction: spontaneous symmetry breaking114 Physical sciences530programmingW: mass: measuredStandard Modelanti-p p: colliding beams[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]hadroproduction [Z0]0103 physical sciencesanti-p p: scatteringddc:530High Energy Physicspair production [electron]pair production [muon]CALORIMETER010306 general physicsQED RADIATIVE-CORRECTIONSQed radiative-corrections; fermion pair production; universal; Monte Carlo; parton distributions; hadron-colliders; electromagnetic; calorimeter;semianalytical programs; E(+)E(-) annihilation; boson; production; D0 detectorGauge bosonBOSON PRODUCTIONMuonScience & Technologyelectroweak interaction: mixing angleAnti-p p: scattering | anti-p p: colliding beams | Z0: hadroproduction | Z0: leptonic decay | electroweak interaction: spontaneous symmetry breaking | electroweak interaction: mixing angle | muon: pair production | W: mass: measured | Weinberg angle | Batavia TEVATRON Coll | angular distribution | electron: pair production | Drell-Yan process | gauge boson | programming | asymmetry | CDF | DZERO | experimental resultsIDENTIFICATION010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyuniversalWeinberg angleZ0: hadroproductionQED RADIATIVE-CORRECTIONS; FERMION PAIR PRODUCTION; UNIVERSAL; MONTE-CARLO; PARTON DISTRIBUTIONS; HADRON COLLIDERS; ELECTROMAGNETIC; CALORIMETER; SEMIANALYTICAL PROGRAM; E(+)E(-) ANNIHILATION; BOSON; PRODUCTION; D0 DETECTORleptonic decay [Z0]E(+)E(-) ANNIHILATIONelectromagneticPARTON DISTRIBUTIONSExperimental High Energy PhysicsZ0: leptonic decayD0 DETECTORCDFHigh Energy Physics::Experimentproductioncolliding beams [anti-p p]Leptonexperimental results
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Study of the X±(5568) state with semileptonic decays of the Bs0 meson

2018

We present a study of the X±(5568) using semileptonic decays of the Bs0 meson using the full run II integrated luminosity of 10.4  fb-1 in proton-antiproton collisions at a center of mass energy of 1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. We report evidence for a narrow structure, X±(5568), in the decay sequence X±(5568)→Bs0π± where Bs0→μ∓Ds±X, Ds±→ϕπ± which is consistent with the previous measurement by the D0 Collaboration in the hadronic decay mode, X±(5568)→Bs0π± where Bs0→J/ψϕ. The mass and width of this state are measured using a combined fit of the hadronic and semileptonic data, yielding m=5566.9-3.1+3.2(stat)-1.2+0.6(syst)  MeV/c2, Γ=18.6-6.1+7.9(s…

PhysicsParticle physicsLuminosity (scattering theory)Meson010308 nuclear & particles physicsHadronTevatronState (functional analysis)01 natural sciences7. Clean energylaw.inventionlaw0103 physical sciencesHigh Energy Physics::ExperimentCenter of massFermilabNuclear Experiment010306 general physicsColliderPhysical Review D
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