Effect of electronelectron correlations on positron-electron momentum density distributions

• Autorzy: Boroński E.
• Języki publikacji: EN

Abstrakty

EN

The calculations of the influence of the self-energy effects on the electron-positron (e-p) enhancement factors and the e-p momentum distributions are presented. The approach bases on the novel formulation of the Bethe- -Goldstone (B-G) equation for the positron in an electron gas where the scattering of the electrons into the states below the Fermi surface due to the self-energy effects is allowed. This equation has been solved and the corresponding e-p enhancement factors and momentum distributions have been found. The agreement between the absolute values of the theoretical calculations and experimental data has improved noticeably.

Słowa kluczowe

EN

positron annihilation; electronic structure; many-body physics

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 1
• Strony: 3--8
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Boroński E.

• Institute of Physics, Opole University, 48 Oleska Str., 45-052 Opole, Poland, Tel.:[phone], Fax: [phone],

Bibliografia

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