Temat: K36 - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Scattering of Positrons and Positronium by Atoms in the Close-Coupling Approximation
Autorzy:: Hewitt, R. N.
Noble, C. J.
Bransdfen, B. H.
Powiązania:: https://bibliotekanauki.pl/articles/1933490.pdf
Data publikacji:: 1995-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 36.10.-k
34.70.+e
Opis:: We present some recent results obtained within the close-coupling approximation for both positron and positronium scattering by atoms. We begin by discussing a generalization of the method of Vincent and Phatak to study the formation of Ps- in Ps collisions with H(1s) in a simplified model. The important result of this calculation is that the overall Coulomb interaction which is present in the rearrangement channel is treated exactly. We also present results for positronium formation and ionization for positron scattering by argon atoms. The present calculations are for transitions from the Αr(3s$\text{}^{2}$) subshell and show the importance of the coupling to the continuum.
Źródło:: Acta Physica Polonica A; 1995, 88, 1; 139-145
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Molecular Structure of Water-Like Positronium Complexes
Autorzy:: Rolim, F.
Mohallem, J. R.
Powiązania:: https://bibliotekanauki.pl/articles/2042196.pdf
Data publikacji:: 2005-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 36.10.-k
36.10.Dr
31.30.-i
82.30.Gg
Opis:: We resort to a previously introduced molecular model for positron complexes to study the molecular structures of Ps$\text{}_{2}$O and PsOH and to explore their analogies and differences from the molecular structure of water.
Źródło:: Acta Physica Polonica A; 2005, 107, 4; 661-665
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Is a Molecular Adiabatic Approximation Appropriate to Positronic Atoms and Molecules?
Autorzy:: Mohallem, J.
Powiązania:: https://bibliotekanauki.pl/articles/1812542.pdf
Data publikacji:: 2008-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 36.10.-k
36.10.Dr
78.70.Bj
82.30.Gg
Opis:: The adiabatic approximation to positronic atoms and molecules was considered as an option to the computationally unfeasible methods that treat all particles in a common footing, in two different approaches communicated in the 37th PSPA. Here we present further assessment and comparison of the two approaches as a way of evaluating the potential of adiabatic or, as we found preferable, molecular approaches.
Źródło:: Acta Physica Polonica A; 2008, 113, 5; 1465-1469
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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