Radiative corrections to QCD SR for meson distribution amplitudes up to O( α s 2 β 0 )
Open Access
- 1 January 2020
- conference paper
- Published by IOP Publishing in Journal of Physics: Conference Series
- Vol. 1435 (1) , 012059
Abstract
We obtain QCD radiative corrections to distribution amplitudes of π and ρ mesons within QCD sum rules. To this end, we calculate correlators of two different composite vertices at order O ( α s 2 β 0 ) , where β 0 is the first coefficient in the expansion of QCD ϒ-function.Keywords
This publication has 10 references indexed in Scilit:
- Two-loop kite master integral for a correlator of two composite verticesJournal of High Energy Physics, 2019
- Three loop MSbar operator correlation functions for deep inelastic scattering in the chiral limitJournal of High Energy Physics, 2009
- HypExp 2, Expanding hypergeometric functions about half-integer parametersComputer Physics Communications, 2008
- New shapes of light-cone distributions of the transversely polarized $\rho$ -mesonsThe European Physical Journal C, 2001
- QCD vacuum tensor susceptibility and properties of transversely polarized mesonsThe European Physical Journal C, 2000
- The ρ-meson and related meson wave functions in QCD sum rules with nonlocal condensatesPhysics Letters B, 1998
- The Gegenbauer Polynomial technique: the evaluation of a class of Feynman diagramsPhysics Letters B, 1996
- Many-loop calculations: The uniqueness method and functional equationsTheoretical and Mathematical Physics, 1985
- Factorization and asymptotic behaviour of pion form factor in QCDPhysics Letters B, 1980
- Exclusive processes in quantum chromodynamics: Evolution equations for hadronic wavefunctions and the form factors of mesonsPhysics Letters B, 1979