Baryon wave function in large-NcQCD: Universality, nonlinear evolution equation and asymptotic limit
| Autor: | P. V. Pobylitsa |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
High Energy Physics - Theory
Physics Quantum chromodynamics Nuclear and High Energy Physics Scattering High Energy Physics::Phenomenology Nuclear Theory FOS: Physical sciences Universality (dynamical systems) Baryon High Energy Physics - Phenomenology Nonlinear system High Energy Physics - Phenomenology (hep-ph) Amplitude High Energy Physics - Theory (hep-th) Excited state Quantum mechanics Nuclear Experiment Wave function |
| Zdroj: | Physical Review D. 71 |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.71.076002 |
| Popis: | The 1/Nc expansion is formulated for the baryon wave function in terms of a specially constructed generating functional. The leading order of this 1/Nc expansion is universal for all low-lying baryons [including the O(1/Nc) and O(Nc^0) excited resonances] and for baryon-meson scattering states. A nonlinear evolution equation of Hamilton-Jacobi type is derived for the generating functional describing the baryon distribution amplitude in the large-Nc limit. In the asymptotic regime this nonlinear equation is solved analytically. The anomalous dimensions of the leading-twist baryon operators diagonalizing the evolution are computed analytically up to the next-to-leading order of the 1/Nc expansion. Comment: 44 pages |
| Databáze: | OpenAIRE |
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