Evidence for population of highly asymmetric states in double-electron capture by O7,8+ and N7+ colliding with He at low to intermediate velocities

W. Wu; J. P. Giese; Z. Chen; R. Ali; C. L. Cocke; P. Richard; M. Stöckli

doi:10.1103/PhysRevA.50.502

Evidence for population of highly asymmetric states in double-electron capture by O7,8+ and N7+ colliding with He at low to intermediate velocities

W. Wu
, J. P. Giese
, Z. Chen
, R. Ali
, C. L. Cocke
, P. Richard
, M. Stöckli

Energy Storage & Conversion

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

Electron capture by O7,8+ and N7+ in collisions with He at 0.21.7 a.u. was investigated using coincident recoil momentum spectroscopy. The Q values and angular differential cross sections for single capture, transfer ionization (TI), and double capture (DC) were measured. Our Q-value measurements indicate that the electrons are captured into less tightly bound states with increasing collision velocity. The Q values and angular differential cross sections for DC and TI by O8+ are approximately the same, while those for DC and TI by O7+ and N7+ differ significantly. Our analysis indicates that the population of very asymmetric states (n=2, n>10) is necessary to explain this difference.

Original language	English
Pages (from-to)	502-510
Number of pages	9
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	50
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.50.502
State	Published - 1994

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title = "Evidence for population of highly asymmetric states in double-electron capture by O7,8+ and N7+ colliding with He at low to intermediate velocities",

abstract = "Electron capture by O7,8+ and N7+ in collisions with He at 0.21.7 a.u. was investigated using coincident recoil momentum spectroscopy. The Q values and angular differential cross sections for single capture, transfer ionization (TI), and double capture (DC) were measured. Our Q-value measurements indicate that the electrons are captured into less tightly bound states with increasing collision velocity. The Q values and angular differential cross sections for DC and TI by O8+ are approximately the same, while those for DC and TI by O7+ and N7+ differ significantly. Our analysis indicates that the population of very asymmetric states (n=2, n>10) is necessary to explain this difference.",

author = "W. Wu and Giese, \{J. P.\} and Z. Chen and R. Ali and Cocke, \{C. L.\} and P. Richard and M. St{\"o}ckli",

year = "1994",

doi = "10.1103/PhysRevA.50.502",

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pages = "502--510",

journal = "Physical Review A - Atomic, Molecular, and Optical Physics",

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T1 - Evidence for population of highly asymmetric states in double-electron capture by O7,8+ and N7+ colliding with He at low to intermediate velocities

AU - Wu, W.

AU - Giese, J. P.

AU - Chen, Z.

AU - Ali, R.

AU - Cocke, C. L.

AU - Richard, P.

AU - Stöckli, M.

PY - 1994

Y1 - 1994

N2 - Electron capture by O7,8+ and N7+ in collisions with He at 0.21.7 a.u. was investigated using coincident recoil momentum spectroscopy. The Q values and angular differential cross sections for single capture, transfer ionization (TI), and double capture (DC) were measured. Our Q-value measurements indicate that the electrons are captured into less tightly bound states with increasing collision velocity. The Q values and angular differential cross sections for DC and TI by O8+ are approximately the same, while those for DC and TI by O7+ and N7+ differ significantly. Our analysis indicates that the population of very asymmetric states (n=2, n>10) is necessary to explain this difference.

AB - Electron capture by O7,8+ and N7+ in collisions with He at 0.21.7 a.u. was investigated using coincident recoil momentum spectroscopy. The Q values and angular differential cross sections for single capture, transfer ionization (TI), and double capture (DC) were measured. Our Q-value measurements indicate that the electrons are captured into less tightly bound states with increasing collision velocity. The Q values and angular differential cross sections for DC and TI by O8+ are approximately the same, while those for DC and TI by O7+ and N7+ differ significantly. Our analysis indicates that the population of very asymmetric states (n=2, n>10) is necessary to explain this difference.

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DO - 10.1103/PhysRevA.50.502

M3 - Article

AN - SCOPUS:0012867927

SN - 1050-2947

VL - 50

SP - 502

EP - 510

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 1

ER -

Evidence for population of highly asymmetric states in double-electron capture by O7,8+ and N7+ colliding with He at low to intermediate velocities

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