The effective electroweak mixing angle $\sin^2θ_{eff}$ with two-loop bosonic contributions

Details The effective electroweak mixing angle $\sin^2θ_{eff}$ with two-loop bosonic contributions The effective electroweak mixing angle $\sin^2θ_{eff}$ with two-loop bosonic contributions

2006-10-24

arxiv.org/abs/hep-ph/0610312v2

Nucl.Phys.B765:154-165,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 3 figures, 4 tables

Scientific paper

10.1016/j.nuclphysb.2006.12.001

We present the results for the full electroweak two-loop bosonic contributions to the effective leptonic mixing angle of the $Z$ boson, $\sin^2\theta_{\rm eff}$, in the Standard Model. A method applied to extract collinear divergences from two-loop vertex-functions is described. Comparisons of our results with those from a recent previous calculation show complete agreement.

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