Two-Loop Electroweak Logarithms

Abstract

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.

Comments: LaTeX, 5 pages, 2 figures. Bernd Jantzen was Bernd Feucht in previous publications. v2 & v3: Eqs. (3,4) and numerical results corrected. v4: minor correction (one number) in numerical results, Eq. (5)