Titre du document

String model with baryons: Topology; classical motion

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Nom du Corpus

AstroConcepts

Auteur(s)
  • X. Artru
Affiliation(s)
  • Laboratoire de Physique Théorique et Hautes Energies, Université de Paris-Sud, 91405 Orsay, France
Résumé

We consider the model in which a meson is an open string with a quark at one end an anti-quark at the other end; a baryon is made of three strings joining at a point, and carrying quarks at their free ends. The triality condition is ensured by orienting the strings according to simple rules. These rules suggest the existence of an underlying magnetic monopole theory. Independently of this “explanation”, we investigate first the topological properties of the model, by looking at the duality diagrams: existence of exotic hadrons, of five basic interactions between strings. Some renormalization diagrams are assigned a negative power of the Veneziano coupling constant. Then, taking the same action (the world-sheet area) as in the conventional string model, we set down the equations of motion of a junction. We argue that the slope of the leading baryonic Regge trajectory is the same as that for the mesons. As an example of an application, we study the “sticking together” of two colliding strings; we find that it is classically forbidden at relative velocities greater than ( 6 7) 1 2.

Langue(s) du document
Anglais
Année de publication
1975
Revue

Nuclear Physics, Section B

Éditeur
Elsevier
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.2
Score de qualité du texte
9.208
Nom du concept
  • String theory
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - physics & astronomy ; 3 - nuclear & particles physics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - physique ; 4 - etat condense: structure electronique, proprietes electriques, magnetiques et optiques
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Nuclear and High Energy Physics
Catégories WoS
  • 1 - science ; 2 - physics, particles & fields
Identifiant ISTEX
A00DC06DCCCC66E01309A17B71F3050BDA9DCF7D
ark:/67375/6H6-MXFSFTBF-N
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