Rho Meson Distribution Amplitudes from QCD Sum Rules with Nonlocal Condensates

Rho Meson Distribution Amplitudes from QCD Sum Rules with Nonlocal Condensates

The leading-twist distribution amplitude for the longitudinal rho-meson was studied using QCD Sum Rules with nonlocal condensates and a spectral density which includes next-to-leading order radiative corrections. The obtained profile is compared with results from standard QCD sum rules, lattice QCD,...

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Veröffentlicht in:Few-body systems 2014-06, Vol.55 (5-7), p.401-406
Hauptverfasser: Pimikov, A. V., Mikhailov, S. V., Stefanis, N. G.
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Atomic
Condensates
Density
Hadrons
Heavy Ions
Liquids
Mathematical models
Molecular
Nuclear Physics
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum chromodynamics
Quantum field theory
Spectra
Sum rules
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Beschreibung
Zusammenfassung:The leading-twist distribution amplitude for the longitudinal rho-meson was studied using QCD Sum Rules with nonlocal condensates and a spectral density which includes next-to-leading order radiative corrections. The obtained profile is compared with results from standard QCD sum rules, lattice QCD, holographic QCD, a light-front quark model, and the instanton liquid model. Preliminary estimates for the first two moments of the transverse ρ-meson distribution amplitude are also given.
ISSN:0177-7963
1432-5411
DOI:10.1007/s00601-014-0815-5