Search Results - "Positron"

Positron hydrogen molecule scattering by Cooper, James Neil

“…All previous Kohn calculations on positron hydrogen molecule scattering have avoided this complication by the use of the method of models. …”
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Positron scattering on atoms and molecules by Bray, Igor, Fursa, Dmitry, Kadyrov, Alisher, Lugovskoy, Andrey, Savage, Jeremy, Stelbovics, Andris, Utamuratov, Ravshanbek, Zammit, Mark

“…An overview is given of recent progress in the calculation of positron scattering on atoms and molecules using the convergent close-coupling method. …”
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Low-energy positron interactions with xenon by Machacek, J., Makochekanwa, C., Jones, A., Caradonna, P., Slaughter, D., McEachran, R., Sullivan, J., Buckman, S., Bellm, S., Lohmann, B., Fursa, Dmitry, Bray, Igor, Mueller, D., Stauffer, A.

“…Low-energy interactions of positrons with xenon have been studied both experimentally and theoretically. …”
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Positron Scattering From neon and argon by Jones, A., Makochekanwa, C., Caradonna, P., Slaughter, D., Machacek, J., McEachran, R., Sullivan, J., Buckman, S., Stauffer, A., Bray, Igor, Fursa, D

“…High-resolution measurements of positron interactions with Ne and Ar are presented, as well as theoretical treatments. …”
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Near-threshold Positron-Hydrogen ionization by Kadyrov, Alisher, Bray, Igor, Stelbovics, Andris

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Low-energy positron interactions with krypton by Makochekanwa, C., Machacek, J., Jones, A., Caradonna, P., Slaughter, D., McEachran, R., Sullivan, J., Buckman, S., Bellm, S., Lohmann, B., Fursa, Dmitry, Bray, Igor, Mueller, D., Stauffer, A., Hoshino, M.

“…Cross sections for positron scattering from krypton have been measured with an energy resolution of ∼60 meV over the energy range 0.5–60 eV. …”
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Positron scattering from noble gases by Fursa, Dmitry, Bray, Igor

“…We have extended the nonrelativistic convergent close-coupling (CCC) method to the calculation of positron scattering from noble gases within the single-centre approximation. …”
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Internal consistency in positron-hydrogen-scattering calculations by Bailey, J., Kadyrov, Alisher, Bray, Igor

“…Internal consistency in a close-coupling approach to positron-hydrogen scattering is investigated with a particular focus on the potential overlap between the atomic and positronium continua. …”
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Comment on "Semiempirical potentials for positron scattering by atoms" by Sullivan, J, Machacek, J, Buckman, S, Bray, Igor

“…A 84 022713 (2011)] use a scaled adiabatic potential to calculate total and differential cross sections for positron scattering from a variety of targets. They claimed that the results are “very close to experimental and best theoretical data.” …”
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Electron and positron scattering from diatomic molecules by Zammit, Mark Christian

“…This thesis describes the development of the adiabatic-nuclei convergent close-coupling method and its application to positron scattering from vibrationally excited molecular hydrogen H2 and electron scattering from the vibrationally excited molecular hydrogen ion H2+ and its isotopologues (D2+, T2+, HD+, HT+ and TD+). …”
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F-fluorodeoxyglucose positron emission tomography imaging in brain tumours: The Western Australia positron emission tomography/cyclotron service experience by McCarthy, M., Yuan, J., Campbell, A., Lenzo, N., Butler-Henderson, Kerryn

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Convergent close-coupling approach to positron scattering on He+ by Rawlins, C., Kadyrov, Alisher, Bray, Igor

“…Abstract: A close-coupling method is used to generate electron-loss and total scattering cross sections for the first three partial waves with both a single-centre and two-centre expansion of the scattering wave function for positron scattering on He+. The two expansions are consistent with each other above the ionisation threshold verifying newly-developed positronium-formation matrix elements. …”
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Kinematically complete picture of positron-impact ionisation of hydrogen by Kadyrov, Alisher, Bray, Igor

“…Kinematically complete fully quantum-mechanical solution of the positron-hydrogen scattering problem is presented above the breakup threshold. …”
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Low energy positron scattering from krypton and xenon by Makochekanwa, C., MacHacek, J., Jones, A., Caradonna, P., Slaughter, D., McEachran, R., Sullivan, J., Buckman, S., Fursa, Dmitry, Bray, Igor, Stauffer, A.

“…Absolute grand total, positronium formation, and grand total minus positronium formation cross sections for positron scattering from krypton and xenon have been measured with an energy resolution of ~60 meV over the energy range 0.5-60 eV. …”
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Convergent calculations of positron scattering from molecular hydrogen by Zammit, M., Fursa, Dmitry, Bray, I.

“…An overview is given of the recently developed adiabatic-nuclei convergent closecoupling method for positron-molecule scattering. Fixed-nuclei single-centre calculations of positron-H2 scattering are presented. …”
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Different representations of continuum in the positron-hydrogen scattering problem by Bailey, Jackson, Kadyrov, Alisher, Bray, Igor

“…A two-centre convergent close coupling method is applied to positron-impact ionisation of hydrogen. Different ways of distributing the pseudostates representing the continuum are investigated. …”
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Convergent close-coupling approach to positron-helium collisions by Utamuratov, Ravshanbek

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Convergent close coupling calculations for positron-magnesium scattering by Savage, J., Bray, Igor, Fursa, Dmitry, Kadyrov, Alisher, Lugovskoy, Andrey, Utamuratov, R.

“…While a two-centre convergent close-coupling approach to positron-magnesium scattering is developed, a single-centre method has been used to calculate total cross sections up to incident energies of 100 eV. …”
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Convergent close-coupling calculations of positron-magnesium scattering by Savage, Jeremy, Fursa, Dmitry, Bray, Igor

“…The single-center convergent close-coupling method has been applied to positron-magnesium scattering at incident energies from 0.01 to 100 eV. …”
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Adiabatic-nuclei calculations of positron scattering from molecular hydrogen by Zammit, M., Fursa, Dmitry, Savage, J., Bray, Igor, Chiari, L., Zecca, A., Brunger, M.

“…The single-center adiabatic-nuclei convergent close-coupling method is used to investigate positron collisions with molecular hydrogen (H2) in the ground and first vibrationally excited states. …”
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