Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1994-06-14
Phys.Lett. B333 (1994) 172-177
Physics
High Energy Physics
High Energy Physics - Theory
Latex, EFI 93-71
Scientific paper
10.1016/0370-2693(94)91025-1
For gauge field propagators, the asymptotic behavior is obtained in all directions of the complex $k^2$-plane, and for general, linear, covariant gauges. Asymptotically free theories are considered. Except for coefficients, the functional form of the leading asymptotic terms is gauge-independent. Exponents are determined exactly by one-loop expressions. Sum rules are derived, which generalize the superconvergence relations obtained in the Landau gauge. (To appear in Physics Letters B)
Oehme Reinhard
Xu Wentao
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