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An asymptotic solution of large- N QCD

Bochicchio, Marco Corianò, C. ; Creanza, D. ; Nappi, E. ; Bruno, G.E. ; Colangelo, P. ; Chiodini, G. ; De Fazio, F.

EPJ Web of conferences, 2014-01, Vol.80, p.10-6 [Periódico revisado por pares]

EDP Sciences

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  • Título:
    An asymptotic solution of large- N QCD
  • Autor: Bochicchio, Marco
  • Corianò, C. ; Creanza, D. ; Nappi, E. ; Bruno, G.E. ; Colangelo, P. ; Chiodini, G. ; De Fazio, F.
  • Assuntos: Amplitudes ; Asymptotic properties ; Correlators ; Mesons ; Operators ; Perturbation theory ; Quantum chromodynamics ; Strings
  • É parte de: EPJ Web of conferences, 2014-01, Vol.80, p.10-6
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: We find an asymptotic solution for two-, three- and multi-point correlators of local gauge-invariant operators, in a lower-spin sector of massless large-N QCD, in terms of glueball and meson propagators, in such a way that the solution is asymptotic in the ultraviolet to renormalization-group improved perturbation theory, by means of a new purely field-theoretical technique that we call the asymptotically-free bootstrap, based on a recently-proved asymptotic structure theorem for two-point correlators. The asymptotically-free bootstrap provides as well asymptotic S-matrix amplitudes in terms of glueball and meson propagators. Remarkably, the asymptotic S-matrix depends only on the unknown particle spectrum, but not on the anomalous dimensions, as a consequence of the LS Z reduction formulae. Very many physics consequences follow, both practically and theoretically. In fact, the asymptotic solution sets the strongest constraints on any actual solution of large-N QCD, and in particular on any string solution.
  • Editor: EDP Sciences
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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