Zγγγ 0 processes in SANC
Abstract
In this paper we describe the analytic and numerical evaluation of the γγ γ Z process cross section and the Z γγγ decay rate within the SANC system multi-channel approach at the one-loop accuracy level with all masses taking into account. The corresponding package for numeric calculations is presented. For checking of the results correctness we make a comparison with other independent calculations.
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