Magnetic moment of the rho-meson in QCD sum rules: perturbative corrections

Details Magnetic moment of the rho-meson in QCD sum rules: perturbative corrections Magnetic moment of the rho-meson in QCD sum rules: perturbative corrections

2003-08-06

arxiv.org/abs/hep-ph/0308065v1

JHEP 0312 (2003) 061

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 5 figures

Scientific paper

10.1088/1126-6708/2003/12/061

The magnetic moment of the rho-meson is calculated in the framework of QCD
sum rules in external fields. Perturbative corrections are taken into account.
Bare loop calculations (parton model) give the value 2.0. The nonperturbative
effects (operators of dimension 6) result in negative contribution, whereas
perturbative corrections -- positive one. The final answer is 1.8.

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