0000000000465807

AUTHOR

Wolfgang Korsch

showing 3 related works from this author

Measurement of the magnetic form factor of the neutron

1993

The [sup 2]H([ital e],[ital e][prime][ital n])[sup 1]H quasielastic cross section was measured at [ital Q][sup 2] values of 0.109, 0.176, and 0.255 (GeV/[ital c])[sup 2]. The neutron detection efficiency was determined by the associated particle technique with the [sup 2]H([gamma],[ital pn]) reaction for each of the three neutron kinetic energies. These [sup 2]H([ital e],[ital e][prime][ital n]) measurements of the coincidence cross sections are the first at low [ital Q][sup 2]. The cross sections are sensitive primarily to the neutron magnetic form factor [ital G][sub [ital M]][sup [ital n]] at these kinematics. The extracted [ital G][sub [ital M]][sup [ital n]] values have smaller uncerta…

PhysicsNuclear reactionNuclear and High Energy PhysicsParticle propertiesMagnetic form factorAnalytical chemistryNeutronAtomic physicsPhysical Review C
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Transverse Beam Spin Asymmetries at Backward Angles in Elastic Electron-Proton and Quasielastic Electron-Deuteron Scattering

2011

We have measured the beam-normal single-spin asymmetries in elastic scattering of transversely polarized electrons from the proton, and performed the first measurement in quasi-elastic scattering on the deuteron, at backward angles (lab scattering angle of 108 degrees) for Q2 = 0.22 GeV^2/c^2 and 0.63 GeV^2/c^2 at beam energies of 362 MeV and 687 MeV, respectively. The asymmetry arises due to the imaginary part of the interference of the two-photon exchange amplitude with that of single photon exchange. Results for the proton are consistent with a model calculation which includes inelastic intermediate hadronic (piN) states. An estimate of the beam-normal single-spin asymmetry for the scatt…

Nuclear TheoryNuclear TheoryGeneral Physics and Astronomyaxial-vector currentFOS: Physical sciencesInelastic scatteringMott scattering[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]strange quark01 natural sciencesNuclear physicsNuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph)parity-violating asymmetries; axial-vector current; strange quark; charge and magnetic nucleon form factors0103 physical sciencesNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentElastic scatteringPhysicsQuasielastic scattering010308 nuclear & particles physicsScatteringcharge and magnetic nucleon form factorsparity-violating asymmetriesSmall-angle neutron scatteringNATURAL SCIENCES. Physics.PRIRODNE ZNANOSTI. Fizika.High Energy Physics - PhenomenologyQuasielastic neutron scatteringPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentScattering theoryAtomic physics
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Measurement of double-polarization asymmetries in the quasi-elastic Process

2018

We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of He3 proceeding to pd and ppn final states, performed in quasi-elastic kinematics at Q2=0.25(GeV/c)2 for missing momenta up to 250MeV/c. These observables represent highly sensitive tools to investigate the electromagnetic and spin structure of He3 and the relative importance of two- and three-body effects involved in the breakup reaction dynamics. The measured asymmetries cannot be satisfactorily reproduced by state-of-the-art calculations of He3 unless their three-body segment is adjusted, indicating that the spin-dependent part of the nuclear interaction governing the three-body breakup pr…

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsNuclear TheoryObservableKinematicsSpin structurePolarization (waves)Breakup01 natural sciencesp-processNuclear interactionNuclear physicsReaction dynamics0103 physical sciencesNuclear Experiment010306 general physicsPhysics Letters
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