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most citedMulti-point quasi-rational approximants for the energy eigenvalues of potentials of the form V(x)= Ax^a + Bx^b

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hep-ph2004

Two-loop helicity amplitudes for fermion-fermion scattering

A. De Freitas, Z. Bern

We discuss the calculation of two-loop helicity amplitudes for quark-quark scattering in QCD and four-gluino scattering in N=1 supersymmetric Yang-Mills theory. We study the depend…