Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023134986> ?p ?o ?g. }
- W2023134986 endingPage "479" @default.
- W2023134986 startingPage "441" @default.
- W2023134986 abstract "Abstract The second order terms in a density expansion of the pion optical potential Vopt are evaluated quantitatively. The coefficients of these terms are proportional to various combinations of on- and off-shell nucleon-nucleon T-matrices, averaged over the distribution of two nucleon relative momenta in the Fermi sea. The on-shell contributions can be obtained directly from experimental phase shifts, but the calculation of the off-shell-parts requires a model for the nucleon-nucleon potential. We consider a number of realistic local and nonlocal, separable potentials which fit nucleon-nucleon phase shifts, in order to study the variations in Vopt which arise from differences in the off-shell behavior of T. We find absorptive (imaginary) and dispersive (real) contributions to Vopt which are of comparable magnitude. The dispersive part, which leads to a real energy shift associated with the two nucleon absorptive process, has not been previously estimated quantitatively. We compare our results to empirical potentials obtained by fitting energy level shifts and widths in pi-mesic atoms, as well as theoretical estimates based on threshold cross sections for the processes π + N + N ⇄ N + N." @default.
- W2023134986 created "2016-06-24" @default.
- W2023134986 creator A5034038875 @default.
- W2023134986 date "1973-08-01" @default.
- W2023134986 modified "2023-09-23" @default.
- W2023134986 title "A density expansion of the pion-nucleus optical potential. II. Second order terms" @default.
- W2023134986 cites W1560976963 @default.
- W2023134986 cites W1964854791 @default.
- W2023134986 cites W1965180665 @default.
- W2023134986 cites W1966504497 @default.
- W2023134986 cites W1970064886 @default.
- W2023134986 cites W1971350720 @default.
- W2023134986 cites W1973329058 @default.
- W2023134986 cites W1974923757 @default.
- W2023134986 cites W1975915573 @default.
- W2023134986 cites W1980450508 @default.
- W2023134986 cites W1980938169 @default.
- W2023134986 cites W1981763917 @default.
- W2023134986 cites W1990019285 @default.
- W2023134986 cites W1996325236 @default.
- W2023134986 cites W1999181192 @default.
- W2023134986 cites W2007121966 @default.
- W2023134986 cites W2007935939 @default.
- W2023134986 cites W2009414343 @default.
- W2023134986 cites W2014800745 @default.
- W2023134986 cites W2015426356 @default.
- W2023134986 cites W2018646543 @default.
- W2023134986 cites W2022550257 @default.
- W2023134986 cites W2022868686 @default.
- W2023134986 cites W2026655629 @default.
- W2023134986 cites W2026755520 @default.
- W2023134986 cites W2027203763 @default.
- W2023134986 cites W2028924292 @default.
- W2023134986 cites W2032693919 @default.
- W2023134986 cites W2039341462 @default.
- W2023134986 cites W2044630662 @default.
- W2023134986 cites W2046036367 @default.
- W2023134986 cites W2048452958 @default.
- W2023134986 cites W2048966927 @default.
- W2023134986 cites W2050390736 @default.
- W2023134986 cites W2061835326 @default.
- W2023134986 cites W2065691649 @default.
- W2023134986 cites W2066221613 @default.
- W2023134986 cites W2067684802 @default.
- W2023134986 cites W2068265450 @default.
- W2023134986 cites W2069038000 @default.
- W2023134986 cites W2069899029 @default.
- W2023134986 cites W2072155100 @default.
- W2023134986 cites W2072872008 @default.
- W2023134986 cites W2086268590 @default.
- W2023134986 cites W2090528037 @default.
- W2023134986 cites W2091196872 @default.
- W2023134986 cites W2122534732 @default.
- W2023134986 cites W2319337084 @default.
- W2023134986 cites W2597181354 @default.
- W2023134986 cites W2799503799 @default.
- W2023134986 cites W3021616451 @default.
- W2023134986 doi "https://doi.org/10.1016/0003-4916(73)90093-6" @default.
- W2023134986 hasPublicationYear "1973" @default.
- W2023134986 type Work @default.
- W2023134986 sameAs 2023134986 @default.
- W2023134986 citedByCount "23" @default.
- W2023134986 crossrefType "journal-article" @default.
- W2023134986 hasAuthorship W2023134986A5034038875 @default.
- W2023134986 hasConcept C10138342 @default.
- W2023134986 hasConcept C109214941 @default.
- W2023134986 hasConcept C118552586 @default.
- W2023134986 hasConcept C121332964 @default.
- W2023134986 hasConcept C162324750 @default.
- W2023134986 hasConcept C182306322 @default.
- W2023134986 hasConcept C185544564 @default.
- W2023134986 hasConcept C206094082 @default.
- W2023134986 hasConcept C2780723820 @default.
- W2023134986 hasConcept C3079626 @default.
- W2023134986 hasConcept C71924100 @default.
- W2023134986 hasConceptScore W2023134986C10138342 @default.
- W2023134986 hasConceptScore W2023134986C109214941 @default.
- W2023134986 hasConceptScore W2023134986C118552586 @default.
- W2023134986 hasConceptScore W2023134986C121332964 @default.
- W2023134986 hasConceptScore W2023134986C162324750 @default.
- W2023134986 hasConceptScore W2023134986C182306322 @default.
- W2023134986 hasConceptScore W2023134986C185544564 @default.
- W2023134986 hasConceptScore W2023134986C206094082 @default.
- W2023134986 hasConceptScore W2023134986C2780723820 @default.
- W2023134986 hasConceptScore W2023134986C3079626 @default.
- W2023134986 hasConceptScore W2023134986C71924100 @default.
- W2023134986 hasIssue "2" @default.
- W2023134986 hasLocation W20231349861 @default.
- W2023134986 hasOpenAccess W2023134986 @default.
- W2023134986 hasPrimaryLocation W20231349861 @default.
- W2023134986 hasRelatedWork W1965082610 @default.
- W2023134986 hasRelatedWork W1965779136 @default.
- W2023134986 hasRelatedWork W1986079673 @default.
- W2023134986 hasRelatedWork W2011020689 @default.
- W2023134986 hasRelatedWork W2024166584 @default.
- W2023134986 hasRelatedWork W2041206134 @default.
- W2023134986 hasRelatedWork W2070903187 @default.
- W2023134986 hasRelatedWork W2093704300 @default.