(e,2e), effective charges, distorted waves and all that!

Whelan, Colm T.; Allan, R. J.; Walters, H. R. J.; Zhang, X.

doi:10.1007/978-94-011-2036-4_1

Cited by 46 publications

(68 citation statements)

References 43 publications

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“…Stefani et al (1990), Whelan et al (1993)). The theoretical results, which include higher-order contributions in the interaction of the projectile with the target beyond the FBA (for details see Madison et al (2002)) were found to be nearly cylindrically symmetric around the q v -axis, a feature characteristic for any first order approach.…”

Section: Single Ionisation At Small and Large Perturbationsmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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Recoil-ion and electron momentum spectroscopy is a rapidly developing technique that allows one to measure the vector momenta of several ions and electrons resulting from atomic or molecular fragmentation. In a unique combination, large solid angles close to π Microccopes -the "bubble chambers of atomic physics" -mark the decisive step forward to investigate many-particle quantum-dynamics occurring when atomic and molecular systems or even surfaces and solids are exposed to time-dependent external electromagnetic fields.The present review concentrates on just these latest technical developments and on at least four new classes of fragmentation experiments that have emerged within about the last five years. First, multi-dimensional images in momentum space brought unprecedented information on the dynamics of single-photon induced fragmentation of fixed-in-space molecules and on their structure. Second, a break-through in the investigation of highintensity short-pulse laser induced fragmentation of atoms and molecules has been achieved by using Reaction Microccopes. Third, for electron and ion-impact, the investigation of twoelectron reactions has matured to a state such that first fully differential cross sections (FDCS) are reported. Forth, comprehensive sets of FDCS for single ionisation of atoms by ion-impact, the most basic atomic fragmentation reaction, brought new insight, a couple of surprises and unexpected challenges to theory at keV to GeV collision energies. In addition, a brief summary on the kinematics is provided at the beginning. Finally, the rich future potential of the method is shortly envisaged.2

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Section: Single Ionisation At Small and Large Perturbationsmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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“…the target nucleus remains essentially passive) and is thus called the binary peak. The latter peak, dubbed the recoil peak, has been interpreted as a two-step process: the atomic electron first undergoes a binary collision with the projectile and is then backscattered by its own nucleus at 180 o , so that it ends up moving in the direction of -q [9].…”

Section: Introductionmentioning

confidence: 99%

Fully differential cross sections for the single ionization of helium by ion impact

Fischer

Moshammer

Schulz

et al. 2003

J. Phys. B: At. Mol. Opt. Phys.

140

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We present experimental and theoretical fully differential cross sections for single ionization of He by heavy-ion impact for electrons emitted into the scattering plane.Data were obtained for 2 MeV/amu C 6+ and 3.6 MeV/amu Au Q+ (Q = 24, 53) projectiles, corresponding to perturbations (projectile charge to velocity ratio) ranging from 0.7 to 4.4, a regime which is not accessible for electron-impact ionization. We observe a decreasing recoil peak intensity (relative to the binary peak) and at the same time an increasing peak in the forward direction with increasing perturbation. Large discrepancies between experiment and theory are found, which can at least partly be attributed to the use of hydrogenic wavefunctions.2

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“…Momentum conservation then demands the electron to be emitted approximately in the direction of q. The (θ e = 90 o , ϕ e = 0 o ) -lobe, called the recoil peak, has been interpreted as a double scattering process: 16 the electron, initially emitted approximately in the direction of q, on its path out of the atom elastically backscatters from the recoil ion, which picks up most of the momentum transferred from the projectile.…”

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confidence: 99%