Two-loop massive fermionic operator matrix elements and intial state QED corrections to e^+e^- \to γ^*/Z^*

Details Two-loop massive fermionic operator matrix elements and intial state QED corrections to e^+e^- \to γ^*/Z^* Two-loop massive fermionic operator matrix elements and intial state QED corrections to e^+e^- \to γ^*/Z^*

2008-12-08

arxiv.org/abs/0812.1588v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 16 figures, Contribution to the Proceedings of RADCOR 2007

Scientific paper

We describe the calculation of the two--loop massive operator matrix elements
for massive external fermions. These matrix elements are needed for the
calculation of the $O(\alpha^2)$ initial state radiative corrections to
$e^+e^-$ annihilation into a neutral virtual gauge boson, based on the
renormalization group technique.

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