Close Coupling Theory of Positron?Hydrogen Scattering
نویسندگان
چکیده
منابع مشابه
Helium-surface interaction potential of Sb(111) from scattering experiments and close-coupling calculations
Helium atom scattering (HAS) was used to study the antimony Sb(111) surface beyond the hard-wall model. HAS angular distributions and drift spectra show a number of selective adsorption resonance features, which correspond to five bound-state energies for He atoms trapped in the surface-averaged He-Sb(111) potential. As their best representation, a 9-3 potential with a depth of 4.4 ± 0.1 meV wa...
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Elastic and inelastic close-coupling (CC) calculations have been used to extract information about the corrugation amplitude and the surface vibrational atomic displacement by fitting to several experimental diffraction patterns. To model the three-dimensional interaction between the He atom and the Bi(111) surface under investigation, a corrugated Morse potential has been assumed. Two differen...
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Close-coupling calculations and experiment are combined in this work, which is aimed at establishing a set of state-to-state rate coefficients for elementary processes i j → m in O2:O2 collisions at low temperature involving the rotational states i, j, ,m of the vibrational ground state of O2( − g ). First, a set of cross sections for inelastic collisions is calculated as a function of the coll...
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The atomic hydrogen target has played a pivotal role in the development of quantum collision theory. The key complexities of computationally managing the countably infinite discrete states and the uncountably infinite continuum were solved by using atomic hydrogen as the prototype atomic target. In the case of positron or proton scattering the extra complexity of charge exchange was also solved...
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1993
ISSN: 0004-9506
DOI: 10.1071/ph930751