Angular distributions in charge-transfer collisions of 50 keV Arl5+ with Ar

We report on angular distribution measurements in 50 keV Ar15+ on Ar charge-transfer collisions. Distributions corresponding to the production of up to quintuply-charged recoils were obtained, and compared to the predictions of the molecular classical overbarrier model (MCBM) of Niehaus (1988) under different assumptions. We found no evidence that the contributions of the tightly bound target electrons are overestimated by the MCBM, in contrast with the observations of Danared et al. (1987) and Guillemot et al. (1990). The e-values of Ali et al. (1993) for the same processes were compared to the model predictions under similar assumptions and the trends were consistent with those of the angular distributions.

[1]  Cheng,et al.  Measurements of recoil ion longitudinal momentum transfer in multiply ionizing collisions of fast heavy ions with multielectron targets. , 1993, Physical review letters.

[2]  Wille,et al.  Multiple electron transfer in slow Ne9+-Ne collisions. , 1992, Physical review. A, Atomic, molecular, and optical physics.

[3]  Cheng,et al.  Q-value measurements in charge-transfer collisions of highly charged ions with atoms by recoil longitudinal momentum spectroscopy. , 1992, Physical review letters.

[4]  T. Tipping,et al.  The KSU‐CRYEBIS: A unique ion source for low‐energy highly charged ions , 1992 .

[5]  Morgenstern,et al.  Coincidences between electrons and target ions to identify capture channels in collisions of multiply charged ions on gas targets. , 1992, Physical review letters.

[6]  Philippe Roncin,et al.  Critical study of the molecular Coulombic barrier model for multiple electron capture by highly charged ions , 1990 .

[7]  Mártin,et al.  Rydberg transition emission after multielectron capture in low-energy collisions of Ar9+ with He, Ne, and Ar. , 1990, Physical review. A, Atomic, molecular, and optical physics.

[8]  P. Hvelplund,et al.  Radiative stabilization of double-Rydberg states formed in slow Xeq+-Xe (15 ⩽ q ⩽ 35) collisions , 1990 .

[9]  Church,et al.  Multielectron capture in Kr18+ collisions with Kr and Ar at low energies by Rydberg transition spectroscopy. , 1990, Physical review letters.

[10]  A. Gleizes,et al.  Multiple capture in N7++Ar investigated by electron spectroscopy (70 keV,θlab=10') , 1988 .

[11]  Pedersen,et al.  Angular dependence of multiple-electron capture in 90-keV Ne7+-Ne collisions. , 1988, Physical review. A, General physics.

[12]  A. Niehaus.  Multiple electron capture in slow collisions of highly charged ions with atoms , 1988 .

[13]  H. Danared,et al.  Absolute Differential Cross-sections for High-charge Low-energy Ar Colliding With Ar , 1987 .

[14]  P. Hvelplund,et al.  Energy gain spectroscopy studies of electron capture by Xeq+ (10⩽q⩽20) in collisions with Ne, Ar and Xe , 1987 .

[15]  H. Danared,et al.  Angular Differential Cross-sections for High-charge Low-energy Ar Colliding With Ar , 1987 .

[16]  Philippe Roncin,et al.  Transfer Ionization in Collisions Involving Multiply Charged Ions at Low keV Energy , 1987 .

[17]  A. Niehaus.  A classical model for multiple-electron capture in slow collisions of highly charged ions with atoms , 1986 .

[18]  H. Danared,et al.  Absolute Cross Sections for Multielectron Processes in Slow Arq+ + Ne, Ar, Kr Collisions , 1986 .

[19]  H. Danared,et al.  Absolute cross sections for multi-electron processes in low energy Arq+−Ar collisions: Comparison with theory , 1985 .

[20]  H. Danared,et al.  Absolute cross sections for multielectron processes in low-energy Arq+-Ar collisions as measured with a new technique , 1984 .

[21]  T. J. Gray,et al.  Total cross sections for electron capture and transfer ionization by highly stripped, slow Ne, Ar, Kr, and Xe projectiles on helium , 1984 .

[22]  A. Schlachter,et al.  Transfer ionisation in slow collisions of multiply-charged ions with atoms , 1983 .

[23]  T. J. Gray,et al.  Charge transfer and ionization in low-energy Ar/sup q/++Ne collisions , 1981 .

[24]  T. J. Gray,et al.  Coincidence measurements of electron capture and ionization in low-energy Ar/sup +q/+(He, Ne, Ar, Xe) collisions , 1981 .

[25]  Tsutomu Watanabe,et al.  Oscillatory behavior of charge transfer cross sections as a function of the charge of projectiles in low-energy collisions , 1980 .

[26]  A. Müller,et al.  Electron capture processes of multiply charged argon ions in argon at energies from 10 to 90 keV , 1975 .