Anisotropy beta functions
arXiv:hep-th/9508014 · doi:10.1103/PhysRevD.52.7328
Abstract
The flow of couplings under anisotropic scaling of momenta is computed in theory in 6 dimensions. It is shown that the coupling decreases as momenta of two of the particles become large, keeping the third momentum fixed, but at a slower rate than the decrease of the coupling if all three momenta become large simultaneously. This effect serves as a simple test of effective theories of high energy scattering, since such theories should reproduce these deviations from the usual logarithmic scale dependence.
uuencoded ps file, 6 pages