0000000000422317

AUTHOR

M. Zeier

showing 3 related works from this author

Measurement of the Electric Form Factor of the Neutron at Q^2=0.5 and 1.0 (GeV/c)^2

2003

The electric form factor of the neutron was determined from measurements of the \vec{d}(\vec{e},e' n)p reaction for quasielastic kinematics. Polarized electrons were scattered off a polarized deuterated ammonia target in which the deuteron polarization was perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle detector. We find G_E^n = 0.0526 +/- 0.0033 (stat) +/- 0.0026 (sys) and 0.0454 +/- 0.0054 +/- 0.0037 at Q^2 = 0.5 and 1.0 (GeV/c)^2, respectively.

Nuclear TheoryFOS: Physical sciencesHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear Experiment
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Final State Interaction Effects in 3He(e ,e'p)

2003

Abstract Asymmetries in quasi-elastic 3 He ( e → , e ′ p ) have been measured at a momentum transfer of 0.67 (GeV/ c ) 2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the 3 He -ground state and an approximate treatment of final state interactions in the continuum good agreement is found with the experimental data.

PhysicsNuclear and High Energy PhysicsCurrent (mathematics)3He-structure010308 nuclear & particles physicsOperator (physics)Continuum (design consultancy)Momentum transferKinematicsState (functional analysis)01 natural sciencesExact solutions in general relativityQuantum mechanicsQuantum electrodynamics0103 physical sciencesFinal-state interactionPolarized electron scattering010306 general physicsGround statePhysics Letters B
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Precise measurements of the neutron magnetic form factor

1998

Abstract The neutron magnetic form factor Gmn has been determined via a measurement of the ratio of cross sections D(e,e′n) and D(e,e′p). The absolute detection efficiency of the neutron detector was measured with high accuracy using tagged neutrons produced from H(n,p)n elastic scattering by means of a high intensity neutron beam. This approach minimizes the model dependence and improves upon the weakest points of previous experiments. Data in the range q2=0.2–0.8 (GeV/c)2 with uncertainties of

Elastic scatteringPhysicsNuclear physicsNuclear and High Energy PhysicsRange (particle radiation)Astrophysics::High Energy Astrophysical PhenomenaMagnetic form factorNeutron detectionNeutronAtomic physicsNeutron radiationNuclear ExperimentIntensity (heat transfer)Physics Letters B
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