FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2092509932> ?p ?o ?g. }

• W2092509932 abstract "Abstract It is pointed out that determinations of the pion-nucleon coupling constant g based on distant collisions in proton-proton (p-p) and neutron-proton (n-p) scattering employing pseudoscalar (ps) theory have questionable validity because the physical particles are not the idealized undressed particles to which the one-pion exchange (OPE) considerations really apply. Neither the pion-pion (π-π) interaction nor the electromagnetic form factors of nucleons (N) and the π's are explained by the derivation of the OPE interaction. Furthermore the Fermi-Yang pion model suggests directly the entrance of derivatives in the π-N interaction energy even though it had to be modified through the years. Although the literal applicability of the ps theory to the calculation of OPE effects is doubtful the exponential dependence of the equivalent OPE potential (OPEP) on the N-N separation is on the other hand a consequence of the tunneling phenomenon in the transfer of a π from one N to another, such as is present in the theory of nucleon-transfer reactions in low energy nuclear physics. The qualitative support for the mathematical form of the OPE from N-N scattering data is thus not a convincing argument for any one detailed mathematical form of OPE theory. It is pointed out that the presence of the factor ( m π /M) 2 ) in the OPE phase shift formula is of questionable validity. Estimates are made of the effect of disregarding the variation of the factor with m π. The estimates indicate that the π-N coupling constants derived from p-p and n-p data will agree appreciably better with each other as a result. This modification does not destroy the highly probable dependence of the OPE phase shifts on m π expected from the picture of π-tunneling through the region of negative kinetic energy between the nucleons. The modification is equivalent to the replacement of the ps coupling theory by the pv theory employing the factor ƒ/ m π in the interaction energy with actual values of m π corresponding to π+, π−, and πO. It is suggested that tests of long-range charge independence performed by comparing (g2)p-p with (g2)n-p do not emphasize sufficiently the rather likely possibility of differences in the coupling of the charged pions to both n and p as compared with that of the neutral pion. Possible uncertainties in the coupling constant determinations caused by the characteristics of experimental data are mentioned and briefly discussed. Different forms of the π-N interaction energy are considered. It is pointed out that there is no compelling reason for considering only local forms in necessarily phenomenological formulations of the theory, because the nucleon, pions, and other mesons involved (ϱ, η, μ, ϕ) are not definitely elementary particles and are coupled to each other. The limited meaning of charge independence of the π-N interaction without the incorporation of a quantitative explanation of the pion mass differences is emphasized. It is pointed out that the employment of the pv coupling theory made in this paper is consistent with relatively recent generalizations of that theory made by S. Weinberg and J. Schwinger in connection with PCAC, soft pion production, π-π interaction, nucleon magnetic moments, and related questions. The relationship of matters discussed to theories of electromagnetic mass differences is briefly considered." @default.
• W2092509932 created "2016-06-24" @default.
• W2092509932 creator A5054680716 @default.
• W2092509932 date "1969-12-01" @default.
• W2092509932 modified "2023-09-25" @default.
• W2092509932 title "Uncertainties in tests of long-range charge independence" @default.
• W2092509932 cites W1969295632 @default.
• W2092509932 cites W1976662798 @default.
• W2092509932 cites W1987546916 @default.
• W2092509932 cites W1992209918 @default.
• W2092509932 cites W2004000296 @default.
• W2092509932 cites W2004040606 @default.
• W2092509932 cites W2011016487 @default.
• W2092509932 cites W2016366703 @default.
• W2092509932 cites W2017041649 @default.
• W2092509932 cites W2018186176 @default.
• W2092509932 cites W2019357495 @default.
• W2092509932 cites W2021282577 @default.
• W2092509932 cites W2038503454 @default.
• W2092509932 cites W2039341462 @default.
• W2092509932 cites W2040597280 @default.
• W2092509932 cites W2057040726 @default.
• W2092509932 cites W2060454339 @default.
• W2092509932 cites W2079702496 @default.
• W2092509932 cites W2082730935 @default.
• W2092509932 cites W2085693149 @default.
• W2092509932 cites W2095970726 @default.
• W2092509932 cites W2807102380 @default.
• W2092509932 cites W3139902613 @default.
• W2092509932 doi "https://doi.org/10.1016/0550-3213(69)90047-9" @default.
• W2092509932 hasPublicationYear "1969" @default.
• W2092509932 type Work @default.
• W2092509932 sameAs 2092509932 @default.
• W2092509932 citedByCount "4" @default.
• W2092509932 crossrefType "journal-article" @default.
• W2092509932 hasAuthorship W2092509932A5054680716 @default.
• W2092509932 hasConcept C101583263 @default.
• W2092509932 hasConcept C109214941 @default.
• W2092509932 hasConcept C121332964 @default.
• W2092509932 hasConcept C172695262 @default.
• W2092509932 hasConcept C183276030 @default.
• W2092509932 hasConcept C185544564 @default.
• W2092509932 hasConcept C190284468 @default.
• W2092509932 hasConcept C200006409 @default.
• W2092509932 hasConcept C200640490 @default.
• W2092509932 hasConcept C206094082 @default.
• W2092509932 hasConcept C2776249927 @default.
• W2092509932 hasConcept C54516573 @default.
• W2092509932 hasConcept C62520636 @default.
• W2092509932 hasConceptScore W2092509932C101583263 @default.
• W2092509932 hasConceptScore W2092509932C109214941 @default.
• W2092509932 hasConceptScore W2092509932C121332964 @default.
• W2092509932 hasConceptScore W2092509932C172695262 @default.
• W2092509932 hasConceptScore W2092509932C183276030 @default.
• W2092509932 hasConceptScore W2092509932C185544564 @default.
• W2092509932 hasConceptScore W2092509932C190284468 @default.
• W2092509932 hasConceptScore W2092509932C200006409 @default.
• W2092509932 hasConceptScore W2092509932C200640490 @default.
• W2092509932 hasConceptScore W2092509932C206094082 @default.
• W2092509932 hasConceptScore W2092509932C2776249927 @default.
• W2092509932 hasConceptScore W2092509932C54516573 @default.
• W2092509932 hasConceptScore W2092509932C62520636 @default.
• W2092509932 hasLocation W20925099321 @default.
• W2092509932 hasOpenAccess W2092509932 @default.
• W2092509932 hasPrimaryLocation W20925099321 @default.
• W2092509932 hasRelatedWork W159261342 @default.
• W2092509932 hasRelatedWork W1654838279 @default.
• W2092509932 hasRelatedWork W1978930425 @default.
• W2092509932 hasRelatedWork W1987853114 @default.
• W2092509932 hasRelatedWork W1988793666 @default.
• W2092509932 hasRelatedWork W1990483889 @default.
• W2092509932 hasRelatedWork W1990717302 @default.
• W2092509932 hasRelatedWork W1991582906 @default.
• W2092509932 hasRelatedWork W2016107049 @default.
• W2092509932 hasRelatedWork W2017647444 @default.
• W2092509932 hasRelatedWork W2023391957 @default.
• W2092509932 hasRelatedWork W2026626302 @default.
• W2092509932 hasRelatedWork W2065979243 @default.
• W2092509932 hasRelatedWork W2071426694 @default.
• W2092509932 hasRelatedWork W2081706998 @default.
• W2092509932 hasRelatedWork W2090888351 @default.
• W2092509932 hasRelatedWork W2163426844 @default.
• W2092509932 hasRelatedWork W292320116 @default.
• W2092509932 hasRelatedWork W3023325458 @default.
• W2092509932 hasRelatedWork W3122668320 @default.
• W2092509932 isParatext "false" @default.
• W2092509932 isRetracted "false" @default.
• W2092509932 magId "2092509932" @default.
• W2092509932 workType "article" @default.