Mass scale effects for the Sudakov form factors in theories with the broken gauge symmetry

TL;DR

This paper calculates off-shell and on-shell Sudakov form factors in theories with broken gauge symmetry using double-logarithmic approximation, considering different infrared cut-offs for virtual photons and weak gauge bosons.

Contribution

It introduces a method to compute Sudakov form factors with multiple infrared cut-offs in broken gauge theories, extending previous single-scale approaches.

Findings

Different infrared cut-offs significantly affect the form factors.

The double-logarithmic approximation provides a consistent framework.

Results clarify the impact of mass scales on gauge symmetry breaking effects.

Abstract

The off-shell and the on-shell Sudakov form factors in theories with broken gauge symmetry are calculated in the double-logarithmic approximation. We have used different infrared cut-offs, i.e. different mass scales, for virtual photons and weak gauge bosons.