中文

Two-loop electroweak contributions to $\Delta r$

高能物理 - 唯象学 2007-05-23 v1

摘要

A review is given on the quantum correction Δr\Delta r in the WW--ZZ mass correlation at the electroweak two-loop level, as derived from the calculation of the muon lifetime in the Standard Model. Exact results for Δr\Delta r and the WW-mass prediction including O(α2){\mathcal{O}}(\alpha^2) corrections with fermion loops are presented and compared with previous results of a next-to-leading order expansion in the top-quark mass.

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引用

@article{arxiv.hep-ph/0101260,
  title  = {Two-loop electroweak contributions to $\Delta r$},
  author = {A. Freitas and S. Heinemeyer and W. Hollik and W. Walter and G. Weiglein},
  journal= {arXiv preprint arXiv:hep-ph/0101260},
  year   = {2007}
}

备注

14 pages, including 4 figures. Presented at the 5th International Symposium on Radiative Corrections, (RADCOR-2000), Carmel CA, USA, 11-15 September 2000