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Does it make any sense to talk about a △-isobar

  • Frieder Kleefeld
Part of the Few-Body Systems book series (FEWBODY, volume 15)

Abstract

It is shortly investigated, on what basis an experimentally observed resonance like the △(1232)-isobar can be embedded into the framework of Quantum Theory (QT), i.e. Quantum Field Theory (QFT) and Quantum Mechanics (QM). After a short discussion of the particle concept in the context of the “bootstrap” idea of G. Chew and S. Mandelstam we will focus on the theoretical formalism being necessary to describe resonances in the Lagrangian or Hamiltonian formulation of QT.

Keywords

Quantnm Theory Polarization Vector Linear Sigma Model Unstable Particle Lorentz Boost 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Frieder Kleefeld
    • 1
  1. 1.Centro de Física das Interacçōes FundamentaisInstituto Superior Técnico, Edifício CiênciaLISBOAPortugal

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