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Rho Meson Distribution Amplitudes from QCD Sum Rules with Nonlocal Condensates |
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| Authors: | A. V. Pimikov S. V. Mikhailov N. G. Stefanis |
| Affiliation: | 1. Departamento de Física Teórica -IFIC, Universidad de Valencia-CSIC, 46100, Burjassot, Valencia, Spain 2. Bogoliubov Laboratory of Theoretical Physics, JINR, 141980, Dubnam, Russia 3. Institut für Theoretische Physik II, Ruhr-Universit?t Bochum, 44780, Bochum, Germany |
| Abstract: | 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. |
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