Photon-Scattered Atom Coincidence Study with Vector Polarization Analysis for K-Noble-Gas Collisions

Zehnle, L; Clemens, E.; Martin, Paul J.; Schauble, W; Kempter, V.

doi:10.1007/978-1-4613-2997-8_38

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“…Experiments of this type have become a standard experiment for inelastic electron-atom collisions [6]. For atom-atom collisions, only few experiments have been reported so far [2][3][4][5]. We present results of photon-ion coincidence experiments for the processes He + +He(ls2)lS ~ He + +He(ls2p)lp…”

Section: A*~a+hvmentioning

confidence: 97%

Photon ? ion angular correlations for He+ + He and He+ + Ne collisions

Großer

Neitzke

1982

Z Physik A

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Detailed information about scattering amplitudes of inelastic atomic collision processes is obtained by simultaneous detection of a scattered particle and a photon emitted from a scattered particle. Channels of neighbouring excitation energy, which are difficult to distinguish by optical or energy loss spectroscopy, are demonstrated to be separable making use of a difference in radiative lifetimes and of the resulting different response to an external magnetic field. The results are discussed in the framework of a quasimolecular description of the collision pair. For the He++ He system, a complete picture of the process is obtained by modifying models discussed previously. Qualitative conclusions are drawn for the He + + Ne system.

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