0000000000932293

AUTHOR

Henryk Witała

showing 2 related works from this author

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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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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