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arXiv · hep-ph/9711318

NLO correction to Higgs boson parameters in the 1/N expansion

T. Binoth·A. Ghinculov·J. J. van der Bij
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Abstract

We present the result of a calculation of the next-to-leading correction to the Higgs propagator in the 1/N expansion, where the Higgs sector is treated as an O(N) symmetric sigma-model. The results are compared with two-loop perturbation theory. The existing discrepancy between the lowest order of the 1/N expansion and perturbation theory is dramatically reduced by including the NLO in 1/N. We find a maximum effective Higgs mass of 930-980 GeV. We give an approximate relation between Higgs width and mass, which can be used for phenomenological purposes.

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T. Binoth, A. Ghinculov, J. J. van der Bij. 1997-11-13. NLO correction to Higgs boson parameters in the 1/N expansion. https://doi.org/10.1016/s0370-2693(97)01402-0

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