0000000000206099

AUTHOR

N. Pavel

showing 4 related works from this author

Transverse momentum distributions for exclusive $\varrho^{0}$ muoproduction

1992

We have studied transverse momentum distributions for exclusive rho(0) muoproduction on protons and heavier nuclei at 2 < Q2 < 25 GeV2. The Q2 dependence of the slopes of the p(t)2 and t' distributions is discussed. The influence of the non-exclusive background is investigated. The p(t)2-slope for exclusive events is 4.3 +/- 0.6 +/- 0.7 GeV-2 at large Q2. The p(t)2 spectra are much softer than inclusive p(t)2 spectra of leading hadrons produced in deep inelastic scattering.

forward spectrometer: experimental resultsPhysics and Astronomy (miscellaneous)Nuclear Theorymuon nucleus: nuclear reactionchemistry.chemical_elementElementary particlemuon deuteron: nuclear reaction530Nuclear physicsmass spectrum: two-pionmomentum transfer: slopespectrum: transverse momentumField theory (psychology)Quantum field theoryNuclear Experimentrho(770)0: electroproductionEngineering (miscellaneous)muon p: exclusive reactionPhysicspomeron: exchangecalciumtwo-pion: mass spectrumbackgroundelectroproduction: rho(770)0carbon200 GeVCERN SPSDeep inelastic scatteringParticle accelerationexchange: pomeronchemistrytransverse momentum: spectrumQuantum electrodynamicsTransverse momentumHigh Energy Physics::ExperimentCarbonParticle Physics - Experimentmuon p --> rho(770)0 nucleon
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Measurements of $R^{d}-R^{p}$ and $R^{Ca}-R^{C}$ in deep inelastic muon scattering

1992

Results are presented on the difference in R, the ratio of longitudinally to transversely polarised virtual photon absorption cross sections, for the deuteron and the proton. They are obtained by c ...

Nuclear and High Energy PhysicsProtonmuon nucleus: deep inelastic scatteringNuclear Theorypolarization: longitudinaldeep inelastic scattering: muon deuteronVirtual particlecross section: ratiophoton: absorptionElementary particlemuon deuteron: deep inelastic scattering530Nuclear physicsabsorption: photondeep inelastic scattering: muon ppolarization: transverseHIGH STATISTICS MEASUREMENT; R=SIGMA-L/SIGMA-T; HIGH Q2Nuclear ExperimentAbsorption (electromagnetic radiation)deep inelastic scattering: muon nucleus90: 200: 280 GeVPhysicsHIGH STATISTICS MEASUREMENTMuoncalciumScatteringcarbonstructure function: ratioR=SIGMA-L/SIGMA-TCERN SPSlongitudinal: polarizationParticle scatteringDeuteriummuon p: deep inelastic scatteringHIGH Q2Physics::Accelerator Physicstransverse: polarizationAtomic physicsParticle Physics - Experimentexperimental results
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Precision measurement of the structure function ratiosF 2 He /F 2 D ,F 2 C /F 2 D andF 2 Ca /F 2 D

1991

We present the structure function ratiosF2He/F2D,F2C/F2D andF2Ca/F2D measured in deep inelastic muon-nucleus scattering at an incident muon momentum of 200 GeV. The kinematic range 0.0035<x<0.65 and 0.5<Q2<90 GeV2 is covered. At lowx the three ratios are significantly smaller than unity and the size of the depletion grows with decreasingx and increasing mass numberA. At intermediatex the ratios show an enhancement of about 2% above unity for C/D and Ca/D, possibly less for He/D. There are indications of someQ2 dependence in the Ca/D data. The integrals of the structure function differencesF2A−F2D are discussed.

PhysicsMomentum (technical analysis)MuonPhysics and Astronomy (miscellaneous)ScatteringStructure functionchemistry.chemical_elementElementary particle530Particle accelerationchemistryAtomic physicsEngineering (miscellaneous)Particle Physics - ExperimentHeliumZeitschrift f�r Physik C Particles and Fields
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Precision measurement of structure function ratios for $^{6}$Li, $^{12}$C and $^{40}$Ca

1992

The structure function ratiosF2C/F2Li,F2Ca/F2Li andF2Ca/F2C were measured in deep inelastic muonnucleus scattering at an incident muon energy of 90 GeV, covering the kinematic range 0.0085<x<0.6 and 0.8<Q2<17GeV2. The sensitivity of the nuclear structure functions to the size and mean density of the target nucleus is discussed.

PhysicsRange (particle radiation)MuonPhysics and Astronomy (miscellaneous)ScatteringNuclear structureElementary particleNuclear physicsmedicine.anatomical_structureDeuteriummedicineAtomic physicsEngineering (miscellaneous)NucleusElectron scatteringParticle Physics - Experiment
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