Two-Loop Electroweak Logarithms
  We present the complete analytical result for the two-loop logarithmically enhanced contributions to the high energy asymptotic behavior of the vector form factor and the four-fermion cross section in a spontaneously broken SU(2) gauge model. On the basis of this result we derive the dominant two-loop electroweak corrections to the neutral current four-fermion processes at high energies. 
Bernd Jantzen, Johann H. K\"uhn, Alexander A. Penin, Vladimir A.   Smirnov