0000000000178449

AUTHOR

Friedrich Klein

showing 3 related works from this author

Precise Measurement of the Neutron Magnetic Form FactorGMnin the Few-GeV2Region

2009

The neutron elastic magnetic form factor was extracted from quasielastic electron scattering on deuterium over the range Q;{2}=1.0-4.8 GeV2 with the CLAS detector at Jefferson Lab. High precision was achieved with a ratio technique and a simultaneous in situ calibration of the neutron detection efficiency. Neutrons were detected with electromagnetic calorimeters and time-of-flight scintillators at two beam energies. The dipole parametrization gives a good description of the data.

Physics010308 nuclear & particles physicsScatteringNuclear TheoryGeneral Physics and AstronomyScintillator7. Clean energy01 natural sciencesNuclear physicsDipoleDeuterium0103 physical sciencesMagnetic form factorNeutron detectionHigh Energy Physics::ExperimentNeutronNuclear Experiment010306 general physicsElectron scatteringPhysical Review Letters
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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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Transparency ratio in γA→η′A′ and the in-medium η′ width

2012

Abstract The photoproduction of η ′ -mesons off different nuclei has been measured with the CBELSA/TAPS detector system for incident photon energies between 1500–2200 MeV. The transparency ratio has been deduced and compared to theoretical calculations describing the propagation of η ′ -mesons in nuclei. The comparison indicates a width of the η ′ -meson of the order of Γ = 15 – 25 MeV at ρ = ρ 0 for an average momentum p η ′ = 1050 MeV / c , at which the η ′ -meson is produced in the nuclear rest frame. The inelastic η ′ N cross section is estimated to be 3–10 mb. Parameterizing the photoproduction cross section of η ′ -mesons by σ ( A ) = σ 0 A α , a value of α = 0.84 ± 0.03 has been dedu…

PhysicsNuclear and High Energy PhysicsPhotonProtonMeson010308 nuclear & particles physicsScatteringNuclear TheoryNiobiumchemistry.chemical_elementRest frame7. Clean energy01 natural sciencesMomentumNuclear physicsCross section (physics)chemistry0103 physical sciencesHigh Energy Physics::ExperimentAtomic physicsNuclear Experiment010306 general physicsPhysics Letters B
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