0000000000394121

AUTHOR

A. Paić

showing 4 related works from this author

Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio

1997

The muon-proton and muon-deuteron inclusive deep inelastic scattering cross sections were measured in the kinematic range 0.002 < x < 0.60 and 0.5 < Q(2) < 75 GeV2 at incident muon energies of 90, 120, 200 and 280 GeV. These results are based on the full data set collected by the New Muon Collaboration, including the data taken with a small angle trigger. The extracted values of the structure functions F-2(p) and F-2(d) are in good agreement with those from other experiments. The data cover a sufficient range of y to allow the determination of the ratio of the longitudinally to transversely polarised virtual photon absorption cross sections, R = sigma(L)/sigma(T), for 0.002 < x < 0.12. The …

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsMuonProtonDeuteriumVirtual particlePerturbative QCDSigmaHigh Energy Physics::ExperimentDeep inelastic scatteringElectron scatteringNuclear Physics B
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Quark and gluon distributions and $\alpha_{s}$ from nucleon structure functions at low $x$

1993

Abstract The Q2 dependence of the structure functions F2p and F2d recently measured by the NMC is compared with the predictions of perturbative QCD at next-to-leading order. Good agreement is observed, leading to accurate determinations of the quark and gluon distributions in the range 0.008 ⩽ × ⩽ 0.5. The strong coupling constant is measured from the low x data; the result agrees with previous determinations.

QuarkNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::Latticedeep inelastic scattering: muon deuteronmuon deuteron: deep inelastic scatteringPARTON DENSITIESJet (particle physics)530CROSS-SECTIONSNuclear physicsnumerical calculations: interpretation of experimentsstrong interaction: coupling constant90: 280 GeVDEEP INELASTIC-SCATTERING; LEADING ORDER; QUANTUM CHROMODYNAMICS; PERTURBATION-THEORY; PARTON DENSITIES; CROSS-SECTIONS; FREEDOM; MSBAR; JET; NMCdeep inelastic scattering: muon pp: structure functionNMCCoupling constantQuantum chromodynamicsPhysicsQUANTUM CHROMODYNAMICSLEADING ORDERHigh Energy Physics::Phenomenologydeuteron: structure functiongluon: momentum spectrumperturbation theory: higher-orderPerturbative QCDDeep inelastic scatteringquark: momentum spectrumFREEDOMGluondependence: momentum transferJETMSBARmuon p: deep inelastic scatteringPERTURBATION-THEORYDEEP INELASTIC-SCATTERINGHigh Energy Physics::Experimentcoupling constant: strong interactionNucleonParticle Physics - Experiment
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Exclusive ϱ0 and φ muoproduction at large Q2

1994

Abstract Exclusive ϱ 0 and φ muoproduction on deuterium, carbon and calcium has been studied in the kinematic range 2 Q 2 2 and 40 Q 2 dependence of the cross sections, the transverse momentum distributions for the vector mesons, the decay angular distributions and, in the case of the ϱ 0 , nuclear effects. The data for 0 production are compatible with a diffractive mechanism. The distinct features of φ production are a smaller cross section and less steep p t 2 distributions than those for the 0 mesons.

PhysicsNuclear and High Energy PhysicsRange (particle radiation)Particle physicsMesonHADRONSMUON SCATTERINGTRANSVERSE-MOMENTUMPROTONQCD530Nuclear physicsCross section (physics)RATIOAngular distributionDeuteriumTransverse momentumDEEP INELASTIC-SCATTERING; MUON SCATTERING; TRANSVERSE-MOMENTUM; PROTON; HADRONS; RATIO; QCDDEEP INELASTIC-SCATTERINGNuclear Physics B
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The A dependence of the nuclear structure function ratios

1996

Results are presented for six nuclei from Be to Pb on the structure function ratios F-2(A)/F-2(C)(X) and their A dependence in deep inelastic muon scattering at 200 GeV incident: muon energy. The data cover the kinematic range 0.01 < x < 0.8 with Q(2) ranging from 2 to 70 GeV2. The A dependence of nuclear structure function ratios is parametrised and compared to various models.

PhysicsNuclear and High Energy PhysicsMuonINELASTIC MUON SCATTERING; R=SIGMA-L/SIGMA-T; ELECTRON-SCATTERING; CROSS-SECTIONS; CHARGE-DENSITY; A-DEPENDENCEScatteringStructure functionNuclear structureCharge densityCHARGE-DENSITYFunction (mathematics)R=SIGMA-L/SIGMA-TCROSS-SECTIONSNuclear physicsELECTRON-SCATTERINGINELASTIC MUON SCATTERINGA-DEPENDENCERange (statistics)High Energy Physics::ExperimentAtomic physicsNuclear ExperimentElectron scattering
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