Titre du document

A dynamical model for the meson spectrum

Lien vers le document
Nom du Corpus

AstroConcepts

Auteur(s)
  • Chan Hong-Mo 1
  • C Wilkin 1
Affiliation(s)
  • CERN, Geneva, Switzerland
Résumé

A model for the meson spectrum is constructed under the following dynamical assumptions: (A) dominance of processes with low thresholds; (B) dominance of one-particle-exchange forces; (C) SU3 symmetry; (D) dominance of quasi-two-particle states in production processes. A bootstrap system is sought which satisfies the following conditions: (i) “consistency” in that all exchanged particles are bound as poles in the appropriate direct channels; (ii) “closure” in that no further low-lying states are bound other than those whose exchange contributes to the forces; (iii) “completeness” in that all “low” energy processes involving any of the particles in the spectrum are taken into account. Starting from the 0? octet (?, K, ?) and the 1? octet (?, K?, ?), these consistency considerations lead to the meson supermultiplets listed in Table I. Interesting regularities in the predicted spectrum are noted. In particular one sees that apart from “Regge” recurrences, the spectrum happens to coincide with that contained in the (6?, 6)?(6, 6?) representation of the recently proposed U6 × U6 supersymmetry.A tentative assignment is attempted of known meson states into the scheme. Apart from the K+??+??0 enhancement at 1270 MeV, all reasonably well-established resonances to date fit comfortably into the spectrum. Further empirical regularities are noted in the assignment, which include one in the Bronzan-Low quantum number A.Wherever feasible, the dynamical parameters (masses, coupling constants) are computed by requiring numerical “bootstrap” consistency using a method proposed by Zachariasen and Zemach. These values are listed in Table II, where it is seen that qualitative agreement is obtained for all parameters so far calculated.

Langue(s) du document
Anglais
Année de publication
1966
Revue

Annals of Physics

Éditeur
Elsevier
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.3
Score de qualité du texte
10
Nom du concept
  • Supersymmetry
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - physics & astronomy ; 3 - nuclear & particles physics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences biologiques et medicales ; 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - General Physics and Astronomy
Catégories WoS
  • 1 - science ; 2 - physics, multidisciplinary
Identifiant ISTEX
033434415A9BE21B4A256C0CAE7C771ACFA25E4B
ark:/67375/6H6-1HWNBF65-9
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