Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/72509
Type: Artigo de periódico
Title: THE STRONG-COUPLING CONSTANT - ITS THEORETICAL DERIVATION FROM A GEOMETRIC APPROACH TO HADRON STRUCTURE
Author: RECAMI, E
TONINZANCHIN, V
Abstract: Since more than a decade, a bi-scale, unified approach to strong and gravitational interactions has been proposed, that uses the geometrical methods of general relativity, and yielded results similar to ''strong gravity'' theory's. We fix our attention, in this note, on hadron structure, and show that also the strong interaction strength alpha(s), ordinarily called the ''(perturbative) coupling-constant square'', can be evaluated within our theory, and found to decrease (increase) as the ''distance'' r decreases (increases). This yields both the confinement of the hadron constituents (for large values of r) and their asymptotic freedom (for small values of r inside the hadron): in qualitative agreement with the experimental evidence. In other words, our approach leads us, on a purely theoretical ground, to a dependence of alpha(s) on r which had been previously found only on phenomenological and heuristic grounds. We expect the above agreement to be also quantitative, on the basis of a few checks performed in this paper, and of further work of ours on calculating meson mass spectra.
Subject: STRONG COUPLING CONSTANT
STRONG GRAVITY
BI-SCALE THEORIES
GENERAL RELATIVITY GEOMETRICAL METHODS
Editor: Plenum Publ Corp
Rights: fechado
Identifier DOI: 10.1007/BF02056555
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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