Next-to-Next-to-Leading Electroweak Logarithms in W-pair Production at ILC

TL;DR

This paper calculates advanced two-loop electroweak corrections for W-pair production at high energies, improving precision predictions for future collider experiments like ILC and CLIC.

Contribution

It derives the next-to-next-to-leading logarithmic behavior of gauge boson production and provides the first detailed two-loop electroweak correction calculations for W-pair production.

Findings

Two-loop electroweak corrections are significant at high energies.

The results enhance the accuracy of theoretical predictions for ILC/CLIC.

The asymptotic behavior of gauge boson production cross sections is characterized.

Abstract

We derive the high energy asymptotic behavior of gauge boson production cross section in a spontaneously broken SU(2) gauge theory in the next-to-next-to-leading logarithmic approximation. On the basis of this result we obtain the logarithmically enhanced two-loop electroweak corrections to the differential cross section of W-pair production at ILC/CLIC up to the second power of the large logarithm.