FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007151056> ?p ?o ?g. }

• W2007151056 abstract "Recent work by Maltman has given us confidence that our assignment of scalar meson states to various nonets based upon our generalized Nambu--Jona-Lasinio (NJL) model is correct. [For example, in our model the ${a}_{0}(980)$ and the ${f}_{0}(980)$ are in the same nonet as the ${K}_{0}^{*}(1430).]$ In this work we make use of our model to provide a precise definition of ``preexisting'' resonances and ``dynamically generated'' resonances when considering various scalar mesons. [This distinction has been noted by Meissner in his characterization of the ${f}_{0}(400--1200)$ as nonpreexisting.] We define preexisting (or intrinsic) resonances as those that appear as singularities of the $qoverline{q} T$ matrix and are in correspondence with $qoverline{q}$ states bound in the confining field. [Additional singularities may be found when studying the T matrices describing ensuremath{pi}-ensuremath{pi} or $ensuremath{pi}ensuremath{-}K$ scattering, for example. Such features may be seen to arise, in part, from t-channel and u-channel ensuremath{rho} exchange in the case of ensuremath{pi}-ensuremath{pi} scattering, leading to the introduction of the ensuremath{sigma}(500--600). In addition, threshold effects in the $qoverline{q} T$ matrix can give rise to significant broad cross section enhancements. The latter is, in part, responsible for the introduction of the ensuremath{kappa}(900) in a study of $ensuremath{pi}ensuremath{-}K$ scattering, for example.] We suggest that it is only the intrinsic resonances which correspond to $qoverline{q}$ quark-model states, and it is only the intrinsic states that are to be used to form quark-model $qoverline{q}$ nonets of states. [While the ensuremath{kappa}(900) and ensuremath{sigma}(500--600) could be placed in a nonet of dynamically generated states, it is unclear whether there is evidence that requires the introduction of other members of such a nonet.] In this work we show how the phenomena related to the introduction of the ensuremath{sigma}(500--600) and the ensuremath{kappa}(900) are generated in studies of ensuremath{pi}-ensuremath{pi} and $ensuremath{pi}ensuremath{-}K$ scattering, making use of our generalized Nambu--Jona-Lasinio model. We also calculate the decay constants for the ${a}_{0}$ and ${K}_{0}^{*}$ mesons and compare our results with those obtained by Maltman. We find that the value obtained using QCD sum-rule techniques for the ${a}_{0}(980)$ decay constant is smaller than the decay constant calculated using our generalized NJL model, which suggests that the ${a}_{0}(980)$ may have a significant $Koverline{K}$ component. We find rather good agreement with Maltman's values for the decay constants of the ${a}_{0}(1450)$ and ${K}_{0}^{*}(1430).$ Maltman suggests that the ${a}_{0}(980)$ and ${K}_{0}^{*}(1430)$ should be in the same nonet, a result in agreement with our analysis." @default.
• W2007151056 created "2016-06-24" @default.
• W2007151056 creator A5000505654 @default.
• W2007151056 creator A5009731750 @default.
• W2007151056 date "2000-12-11" @default.
• W2007151056 modified "2023-09-27" @default.
• W2007151056 title "Intrinsic and dynamically generated scalar meson states" @default.
• W2007151056 cites W1524318171 @default.
• W2007151056 cites W1553403032 @default.
• W2007151056 cites W1620027565 @default.
• W2007151056 cites W1966058162 @default.
• W2007151056 cites W1971469818 @default.
• W2007151056 cites W1990256507 @default.
• W2007151056 cites W2000369662 @default.
• W2007151056 cites W2004972968 @default.
• W2007151056 cites W2012736291 @default.
• W2007151056 cites W2040886267 @default.
• W2007151056 cites W2052597314 @default.
• W2007151056 cites W2054256546 @default.
• W2007151056 cites W2061416994 @default.
• W2007151056 cites W2065636686 @default.
• W2007151056 cites W2068052604 @default.
• W2007151056 cites W2078923370 @default.
• W2007151056 cites W2082606185 @default.
• W2007151056 cites W2083930136 @default.
• W2007151056 cites W2092593517 @default.
• W2007151056 cites W2095317692 @default.
• W2007151056 cites W2121313681 @default.
• W2007151056 cites W2130744555 @default.
• W2007151056 cites W2172729412 @default.
• W2007151056 cites W2405007056 @default.
• W2007151056 cites W2488680189 @default.
• W2007151056 cites W2799896773 @default.
• W2007151056 cites W3124797021 @default.
• W2007151056 cites W2016692267 @default.
• W2007151056 doi "https://doi.org/10.1103/physrevd.63.014019" @default.
• W2007151056 hasPublicationYear "2000" @default.
• W2007151056 type Work @default.
• W2007151056 sameAs 2007151056 @default.
• W2007151056 citedByCount "17" @default.
• W2007151056 countsByYear W20071510562019 @default.
• W2007151056 crossrefType "journal-article" @default.
• W2007151056 hasAuthorship W2007151056A5000505654 @default.
• W2007151056 hasAuthorship W2007151056A5009731750 @default.
• W2007151056 hasConcept C109214941 @default.
• W2007151056 hasConcept C121332964 @default.
• W2007151056 hasConcept C12843 @default.
• W2007151056 hasConcept C139210041 @default.
• W2007151056 hasConcept C161094330 @default.
• W2007151056 hasConcept C174084160 @default.
• W2007151056 hasConcept C191486275 @default.
• W2007151056 hasConcept C200006409 @default.
• W2007151056 hasConcept C2524010 @default.
• W2007151056 hasConcept C2778542049 @default.
• W2007151056 hasConcept C33923547 @default.
• W2007151056 hasConcept C37914503 @default.
• W2007151056 hasConcept C57691317 @default.
• W2007151056 hasConcept C62520636 @default.
• W2007151056 hasConceptScore W2007151056C109214941 @default.
• W2007151056 hasConceptScore W2007151056C121332964 @default.
• W2007151056 hasConceptScore W2007151056C12843 @default.
• W2007151056 hasConceptScore W2007151056C139210041 @default.
• W2007151056 hasConceptScore W2007151056C161094330 @default.
• W2007151056 hasConceptScore W2007151056C174084160 @default.
• W2007151056 hasConceptScore W2007151056C191486275 @default.
• W2007151056 hasConceptScore W2007151056C200006409 @default.
• W2007151056 hasConceptScore W2007151056C2524010 @default.
• W2007151056 hasConceptScore W2007151056C2778542049 @default.
• W2007151056 hasConceptScore W2007151056C33923547 @default.
• W2007151056 hasConceptScore W2007151056C37914503 @default.
• W2007151056 hasConceptScore W2007151056C57691317 @default.
• W2007151056 hasConceptScore W2007151056C62520636 @default.
• W2007151056 hasIssue "1" @default.
• W2007151056 hasLocation W20071510561 @default.
• W2007151056 hasOpenAccess W2007151056 @default.
• W2007151056 hasPrimaryLocation W20071510561 @default.
• W2007151056 hasRelatedWork W1490149750 @default.
• W2007151056 hasRelatedWork W2000125980 @default.
• W2007151056 hasRelatedWork W2023779418 @default.
• W2007151056 hasRelatedWork W2034779936 @default.
• W2007151056 hasRelatedWork W2085265170 @default.
• W2007151056 hasRelatedWork W2093707792 @default.
• W2007151056 hasRelatedWork W2409544932 @default.
• W2007151056 hasRelatedWork W2780391996 @default.
• W2007151056 hasRelatedWork W2796214666 @default.
• W2007151056 hasRelatedWork W3102958999 @default.
• W2007151056 hasVolume "63" @default.
• W2007151056 isParatext "false" @default.
• W2007151056 isRetracted "false" @default.
• W2007151056 magId "2007151056" @default.
• W2007151056 workType "article" @default.