%0 Journal Article
%T Matching conditions and Higgs mass upper bounds revisited
%A Thomas Hambye
%A Kurt Riesselmann
%J Physics
%D 1996
%I arXiv
%R 10.1103/PhysRevD.55.7255
%X Matching conditions relate couplings to particle masses. We discuss the importance of one-loop matching conditions in Higgs and top-quark sector as well as the choice of the matching scale. We argue for matching scales $\mu_{0,t} \simeq m_t$ and $\mu_{0,H} \simeq max[ m_t, M_H ]$. Using these results, the two-loop Higgs mass upper bounds are reanalyzed. Previous results for $\Lambda\approx$ few TeV are found to be too stringent. For $\Lambda=10^{19}$ GeV we find $M_H < 180 \pm 4\pm 5$ GeV, the first error indicating the theoretical uncertainty, the second error reflecting the experimental uncertainty due to $m_t=175\pm6$ GeV.
%U http://arxiv.org/abs/hep-ph/9610272v1