Open AccessRadiative corrections to QCD SR for meson distribution amplitudes up to O( α s 2 β 0 )
Author(s) -
С. В. Михайлов,
N. Volchanskiy
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1435/1/012059
Subject(s) - quantum chromodynamics , physics , amplitude , algorithm , particle physics , computer science , optics
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.