Matches in SemOpenAlex for { <https://semopenalex.org/work/W2025682357> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2025682357 endingPage "899" @default.
- W2025682357 startingPage "883" @default.
- W2025682357 abstract "A theoretical treatment is presented of the enhancement of positron annihilation with core electrons in a solid. A first estimate is obtained from the simple result for Coulomb scattering of a single positron-electron pair. For relative velocity $v$ large compared to the Bohr velocity ${v}_{0}=frac{{e}^{2}}{ensuremath{hbar}}$ the enhancement is small, being given approximately by $ensuremath{chi}ensuremath{-}1=frac{ensuremath{pi}{v}_{0}}{v}$, where $ensuremath{chi}$ is the enhancement factor. Since core electrons typically have velocities much larger than ${v}_{0}$, the enhancement for core annihilation is expected to be small. Modifications due to the fact that the electron is embedded in a system of interacting electrons bound to an atomic nucleus are estimated from calculations partly for an electron gas of high density, and partly for a single electron closely bound to a nucleus. The enhancement is found to be similar to the result for a single, free electron but somewhat reduced in magnitude mainly due to the Pauli exclusion principle. Quantitative estimates of the small enhancement are derived for the core contribution to both the total and the momentum-dependent annihilation rates. The enhancements are much smaller than obtained in earlier treatments, and they lead to corrections for core annihilation which are significantly smaller than those derived from semiempirical estimates." @default.
- W2025682357 created "2016-06-24" @default.
- W2025682357 creator A5025006559 @default.
- W2025682357 creator A5042850200 @default.
- W2025682357 creator A5050819526 @default.
- W2025682357 date "1979-08-01" @default.
- W2025682357 modified "2023-09-29" @default.
- W2025682357 title "Enhancement of positron annihilation with core electrons" @default.
- W2025682357 cites W1974101988 @default.
- W2025682357 cites W1979040280 @default.
- W2025682357 cites W1980717809 @default.
- W2025682357 cites W1983764437 @default.
- W2025682357 cites W1994101740 @default.
- W2025682357 cites W1995323743 @default.
- W2025682357 cites W2009725318 @default.
- W2025682357 cites W2023508874 @default.
- W2025682357 cites W2029730516 @default.
- W2025682357 cites W2052606333 @default.
- W2025682357 cites W2056495003 @default.
- W2025682357 cites W2059505687 @default.
- W2025682357 cites W2064537073 @default.
- W2025682357 cites W2090540219 @default.
- W2025682357 cites W2146611815 @default.
- W2025682357 cites W4247330975 @default.
- W2025682357 doi "https://doi.org/10.1103/physrevb.20.883" @default.
- W2025682357 hasPublicationYear "1979" @default.
- W2025682357 type Work @default.
- W2025682357 sameAs 2025682357 @default.
- W2025682357 citedByCount "70" @default.
- W2025682357 countsByYear W20256823572013 @default.
- W2025682357 countsByYear W20256823572015 @default.
- W2025682357 countsByYear W20256823572018 @default.
- W2025682357 countsByYear W20256823572020 @default.
- W2025682357 countsByYear W20256823572023 @default.
- W2025682357 crossrefType "journal-article" @default.
- W2025682357 hasAuthorship W2025682357A5025006559 @default.
- W2025682357 hasAuthorship W2025682357A5042850200 @default.
- W2025682357 hasAuthorship W2025682357A5050819526 @default.
- W2025682357 hasConcept C10138342 @default.
- W2025682357 hasConcept C110340908 @default.
- W2025682357 hasConcept C121332964 @default.
- W2025682357 hasConcept C147120987 @default.
- W2025682357 hasConcept C162324750 @default.
- W2025682357 hasConcept C174084160 @default.
- W2025682357 hasConcept C184779094 @default.
- W2025682357 hasConcept C185544564 @default.
- W2025682357 hasConcept C191486275 @default.
- W2025682357 hasConcept C201941533 @default.
- W2025682357 hasConcept C202100949 @default.
- W2025682357 hasConcept C26873012 @default.
- W2025682357 hasConcept C36678784 @default.
- W2025682357 hasConcept C60718061 @default.
- W2025682357 hasConcept C62520636 @default.
- W2025682357 hasConcept C68030841 @default.
- W2025682357 hasConceptScore W2025682357C10138342 @default.
- W2025682357 hasConceptScore W2025682357C110340908 @default.
- W2025682357 hasConceptScore W2025682357C121332964 @default.
- W2025682357 hasConceptScore W2025682357C147120987 @default.
- W2025682357 hasConceptScore W2025682357C162324750 @default.
- W2025682357 hasConceptScore W2025682357C174084160 @default.
- W2025682357 hasConceptScore W2025682357C184779094 @default.
- W2025682357 hasConceptScore W2025682357C185544564 @default.
- W2025682357 hasConceptScore W2025682357C191486275 @default.
- W2025682357 hasConceptScore W2025682357C201941533 @default.
- W2025682357 hasConceptScore W2025682357C202100949 @default.
- W2025682357 hasConceptScore W2025682357C26873012 @default.
- W2025682357 hasConceptScore W2025682357C36678784 @default.
- W2025682357 hasConceptScore W2025682357C60718061 @default.
- W2025682357 hasConceptScore W2025682357C62520636 @default.
- W2025682357 hasConceptScore W2025682357C68030841 @default.
- W2025682357 hasIssue "3" @default.
- W2025682357 hasLocation W20256823571 @default.
- W2025682357 hasOpenAccess W2025682357 @default.
- W2025682357 hasPrimaryLocation W20256823571 @default.
- W2025682357 hasRelatedWork W1665641637 @default.
- W2025682357 hasRelatedWork W1982902023 @default.
- W2025682357 hasRelatedWork W1995530043 @default.
- W2025682357 hasRelatedWork W2025682357 @default.
- W2025682357 hasRelatedWork W2064799552 @default.
- W2025682357 hasRelatedWork W2143413356 @default.
- W2025682357 hasRelatedWork W2168699900 @default.
- W2025682357 hasRelatedWork W2218453834 @default.
- W2025682357 hasRelatedWork W250276870 @default.
- W2025682357 hasRelatedWork W2945969701 @default.
- W2025682357 hasVolume "20" @default.
- W2025682357 isParatext "false" @default.
- W2025682357 isRetracted "false" @default.
- W2025682357 magId "2025682357" @default.
- W2025682357 workType "article" @default.