Meson–meson interactions and Regge propagators

By a reformulation of the loop expansion in the Resonance-Spectrum Expansion amplitude for meson–meson scattering, in terms of s-channel exchange of families of propagator modes, we obtain a formalism which allows for a wider range of applications. The connection with the unitarized amplitudes emplo...

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Bibliographic Details
Published in:Annals of physics 2009-08, Vol.324 (8), p.1620-1633
Main Authors: van Beveren, Eef, Rupp, George
Format: Article
Language:English
Subjects:
Absorptive/optical models
Alternatives
CHIRALITY
DUALITY
Exact S matrices
MESON-MESON INTERACTIONS
Multichannel scattering
OPTICAL MODELS
Particle physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Potential models
PROPAGATOR
Regge theory
RESONANCE
S CHANNEL
S MATRIX
SCATTERING
Spectrum analysis
Theory
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Description
Summary:By a reformulation of the loop expansion in the Resonance-Spectrum Expansion amplitude for meson–meson scattering, in terms of s-channel exchange of families of propagator modes, we obtain a formalism which allows for a wider range of applications. The connection with the unitarized amplitudes employed in some chiral theories is discussed. We also define an alternative for the Regge spectra and indicate how this may be observed in experiment.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2009.03.013