FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2013999898> ?p ?o ?g. }

• W2013999898 abstract "Abstract The theory of quantum electrodynamics has presented a complete calculation of the energy levels of positronium (Ps, e + e − ) up to the order R ∞ α 4 . The annihilation rates for para -Ps (1 1 S 0 ) and ortho -Ps (1 1 S 1 ) are completely known up to the order R ∞ α 5 and R ∞ α 6 , respectively. The present experimental uncertainty for spectroscopic results is 5–100 times larger than the theoretical uncertainty. For the annihilation rates the experimental situation is even worse. The theoretical predictions have presently reached a level of precision which is a challenge to experimentalists! The experimental uncertainty for the fine- and hyperfine transitions in the Ps atom is determined by the natural line width. An improvement is only possible with better statistics, i.e. higher positron intensities. For the annihilation rate of ortho -Ps there exist controversial measurements. Here completely new experiments are necessary which differ from the old measurements by possible systematic errors. All new proposals need high positron intensities which can be conveniently produced by bremsstrahlung and pair conversion in the beam dump of medium energy electron accelerators." @default.
• W2013999898 created "2016-06-24" @default.
• W2013999898 creator A5037901512 @default.
• W2013999898 date "2002-06-01" @default.
• W2013999898 modified "2023-10-02" @default.
• W2013999898 title "Atomic physics of positronium with intense slow positron beams" @default.
• W2013999898 cites W1522744123 @default.
• W2013999898 cites W1563387831 @default.
• W2013999898 cites W1594163328 @default.
• W2013999898 cites W1971066190 @default.
• W2013999898 cites W1971437639 @default.
• W2013999898 cites W1983195418 @default.
• W2013999898 cites W1989330693 @default.
• W2013999898 cites W1993151588 @default.
• W2013999898 cites W1997588210 @default.
• W2013999898 cites W1998498280 @default.
• W2013999898 cites W2020681434 @default.
• W2013999898 cites W2023265211 @default.
• W2013999898 cites W2032378998 @default.
• W2013999898 cites W2050949414 @default.
• W2013999898 cites W2051250438 @default.
• W2013999898 cites W2054869103 @default.
• W2013999898 cites W2056201309 @default.
• W2013999898 cites W2062146291 @default.
• W2013999898 cites W2063410980 @default.
• W2013999898 cites W2065523064 @default.
• W2013999898 cites W2066891376 @default.
• W2013999898 cites W2067439907 @default.
• W2013999898 cites W2070005835 @default.
• W2013999898 cites W2079647879 @default.
• W2013999898 cites W2090471881 @default.
• W2013999898 cites W2101808861 @default.
• W2013999898 cites W2120729337 @default.
• W2013999898 cites W2139126750 @default.
• W2013999898 cites W2600601813 @default.
• W2013999898 cites W2068926927 @default.
• W2013999898 doi "https://doi.org/10.1016/s0169-4332(02)00139-3" @default.
• W2013999898 hasPublicationYear "2002" @default.
• W2013999898 type Work @default.
• W2013999898 sameAs 2013999898 @default.
• W2013999898 citedByCount "23" @default.
• W2013999898 countsByYear W20139998982012 @default.
• W2013999898 countsByYear W20139998982015 @default.
• W2013999898 countsByYear W20139998982016 @default.
• W2013999898 countsByYear W20139998982018 @default.
• W2013999898 countsByYear W20139998982019 @default.
• W2013999898 countsByYear W20139998982020 @default.
• W2013999898 countsByYear W20139998982021 @default.
• W2013999898 countsByYear W20139998982022 @default.
• W2013999898 crossrefType "journal-article" @default.
• W2013999898 hasAuthorship W2013999898A5037901512 @default.
• W2013999898 hasConcept C121332964 @default.
• W2013999898 hasConcept C131538251 @default.
• W2013999898 hasConcept C147120987 @default.
• W2013999898 hasConcept C149635348 @default.
• W2013999898 hasConcept C154726568 @default.
• W2013999898 hasConcept C184779094 @default.
• W2013999898 hasConcept C185544564 @default.
• W2013999898 hasConcept C201941533 @default.
• W2013999898 hasConcept C202100949 @default.
• W2013999898 hasConcept C41008148 @default.
• W2013999898 hasConcept C58312451 @default.
• W2013999898 hasConcept C81302155 @default.
• W2013999898 hasConceptScore W2013999898C121332964 @default.
• W2013999898 hasConceptScore W2013999898C131538251 @default.
• W2013999898 hasConceptScore W2013999898C147120987 @default.
• W2013999898 hasConceptScore W2013999898C149635348 @default.
• W2013999898 hasConceptScore W2013999898C154726568 @default.
• W2013999898 hasConceptScore W2013999898C184779094 @default.
• W2013999898 hasConceptScore W2013999898C185544564 @default.
• W2013999898 hasConceptScore W2013999898C201941533 @default.
• W2013999898 hasConceptScore W2013999898C202100949 @default.
• W2013999898 hasConceptScore W2013999898C41008148 @default.
• W2013999898 hasConceptScore W2013999898C58312451 @default.
• W2013999898 hasConceptScore W2013999898C81302155 @default.
• W2013999898 hasLocation W20139998981 @default.
• W2013999898 hasOpenAccess W2013999898 @default.
• W2013999898 hasPrimaryLocation W20139998981 @default.
• W2013999898 hasRelatedWork W1503147458 @default.
• W2013999898 hasRelatedWork W1581886929 @default.
• W2013999898 hasRelatedWork W1966602560 @default.
• W2013999898 hasRelatedWork W1971788877 @default.
• W2013999898 hasRelatedWork W1975522992 @default.
• W2013999898 hasRelatedWork W1983195418 @default.
• W2013999898 hasRelatedWork W2014357639 @default.
• W2013999898 hasRelatedWork W2023213302 @default.
• W2013999898 hasRelatedWork W2032378998 @default.
• W2013999898 hasRelatedWork W2038394839 @default.
• W2013999898 hasRelatedWork W2049624420 @default.
• W2013999898 hasRelatedWork W2056201309 @default.
• W2013999898 hasRelatedWork W2059259589 @default.
• W2013999898 hasRelatedWork W2060959545 @default.
• W2013999898 hasRelatedWork W2063998561 @default.
• W2013999898 hasRelatedWork W2066891376 @default.
• W2013999898 hasRelatedWork W2070005835 @default.
• W2013999898 hasRelatedWork W2074304485 @default.
• W2013999898 hasRelatedWork W2075079661 @default.
• W2013999898 hasRelatedWork W2592335621 @default.
• W2013999898 isParatext "false" @default.
• W2013999898 isRetracted "false" @default.

• next