Higher-order Results for Precision Observables in the Standard Model and the MSSM
Abstract
Recent higher-order results for precision observables in the Standard Model (SM) and the Minimal Supersymmetric Standard Model (MSSM) and for the neutral CP-even Higgs-boson masses of the MSSM are summarized. Furthermore a brief discussion of the technical aspects of evaluating higher-order corrections in the electroweak theory is given. In the SM, results for the Higgs-mass dependence of the precision observables are analyzed. The exact two-loop results for the Higgs-mass dependence of the fermionic contributions are compared with the results of an expansion in the top-quark mass up to next-to-leading order. In the MSSM, results for the leading two-loop contributions to the precision observables and to the masses of the neutral CP-even Higgs bosons are discussed. The latter are compared with results obtained by renormalization group calculations.
Keywords
Cite
@article{arxiv.hep-ph/9901317,
title = {Higher-order Results for Precision Observables in the Standard Model and the MSSM},
author = {G. Weiglein},
journal= {arXiv preprint arXiv:hep-ph/9901317},
year = {2007}
}
Comments
16 pages, 7 figures; Talk presented at the IVth International Symposium on Radiative Corrections (RADCOR 98), Barcelona, September 8-12, 1998, to appear in the proceedings