Radiative corrections to QCD SR for meson distribution amplitudes up to

Radiative corrections to QCD SR for meson distribution amplitudes up to

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 \(O({\alpha }_{s}^{2}{\beta }_{0})\), where β 0 is the first coefficient in the expansion of QCD ϒ-function.

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Veröffentlicht in:Journal of physics. Conference series 2020-01, Vol.1435 (1)
Hauptverfasser: Mikhailov, S V, Volchanskiy, N
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Apexes
Correlators
Physics
Rho-mesons
Sum rules
Thermal expansion
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Zusammenfassung: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 \(O({\alpha }_{s}^{2}{\beta }_{0})\), where β 0 is the first coefficient in the expansion of QCD ϒ-function.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1435/1/012059