Doubly differential spectra of scattered protons in ionization of atomic hydrogen

M. Schulz; A. C. Laforge; K. N. Egodapitiya; J. S. Alexander; A. Hasan; M. F. Ciappina; A. C. Roy; R. Dey; A. Samolov; A. L. Godunov

doi:10.1103/PhysRevA.81.052705

Doubly differential spectra of scattered protons in ionization of atomic hydrogen

M. Schulz^*, A. C. Laforge, K. N. Egodapitiya, J. S. Alexander, A. Hasan, M. F. Ciappina, A. C. Roy, R. Dey, A. Samolov, A. L. Godunov

^*Corresponding author for this work

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

31 Scopus citations

Abstract

We have measured and calculated doubly differential cross sections for ionization of atomic hydrogen using 75-keV proton impact for fixed projectile energy losses as a function of scattering angle. This collision system represents a pure three-body system and thus offers an accurate test of the theoretical description of the few-body dynamics without any complications presented by electron correlation in many-electron targets. Comparison between experiment and several theoretical models reveals that the projectile-target nucleus interaction is best described by the operator of a second-order term of the transition amplitude. Higher-order contributions in the projectile-electron interaction, on the other hand, are more appropriately accounted for in the final-state wave function.

Original language	English
Article number	052705
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	81
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.81.052705
State	Published - 21 May 2010
Externally published	Yes

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title = "Doubly differential spectra of scattered protons in ionization of atomic hydrogen",

abstract = "We have measured and calculated doubly differential cross sections for ionization of atomic hydrogen using 75-keV proton impact for fixed projectile energy losses as a function of scattering angle. This collision system represents a pure three-body system and thus offers an accurate test of the theoretical description of the few-body dynamics without any complications presented by electron correlation in many-electron targets. Comparison between experiment and several theoretical models reveals that the projectile-target nucleus interaction is best described by the operator of a second-order term of the transition amplitude. Higher-order contributions in the projectile-electron interaction, on the other hand, are more appropriately accounted for in the final-state wave function.",

author = "M. Schulz and Laforge, {A. C.} and Egodapitiya, {K. N.} and Alexander, {J. S.} and A. Hasan and Ciappina, {M. F.} and Roy, {A. C.} and R. Dey and A. Samolov and Godunov, {A. L.}",

year = "2010",

month = may,

day = "21",

doi = "10.1103/PhysRevA.81.052705",

language = "英语",

volume = "81",

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

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TY - JOUR

T1 - Doubly differential spectra of scattered protons in ionization of atomic hydrogen

AU - Schulz, M.

AU - Laforge, A. C.

AU - Egodapitiya, K. N.

AU - Alexander, J. S.

AU - Hasan, A.

AU - Ciappina, M. F.

AU - Roy, A. C.

AU - Dey, R.

AU - Samolov, A.

AU - Godunov, A. L.

PY - 2010/5/21

Y1 - 2010/5/21

N2 - We have measured and calculated doubly differential cross sections for ionization of atomic hydrogen using 75-keV proton impact for fixed projectile energy losses as a function of scattering angle. This collision system represents a pure three-body system and thus offers an accurate test of the theoretical description of the few-body dynamics without any complications presented by electron correlation in many-electron targets. Comparison between experiment and several theoretical models reveals that the projectile-target nucleus interaction is best described by the operator of a second-order term of the transition amplitude. Higher-order contributions in the projectile-electron interaction, on the other hand, are more appropriately accounted for in the final-state wave function.

AB - We have measured and calculated doubly differential cross sections for ionization of atomic hydrogen using 75-keV proton impact for fixed projectile energy losses as a function of scattering angle. This collision system represents a pure three-body system and thus offers an accurate test of the theoretical description of the few-body dynamics without any complications presented by electron correlation in many-electron targets. Comparison between experiment and several theoretical models reveals that the projectile-target nucleus interaction is best described by the operator of a second-order term of the transition amplitude. Higher-order contributions in the projectile-electron interaction, on the other hand, are more appropriately accounted for in the final-state wave function.

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U2 - 10.1103/PhysRevA.81.052705

DO - 10.1103/PhysRevA.81.052705

M3 - 文章

AN - SCOPUS:77953216309

SN - 1050-2947

VL - 81

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

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

IS - 5

M1 - 052705

ER -

Doubly differential spectra of scattered protons in ionization of atomic hydrogen

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