NLO correction to Higgs boson parameters in the 1/N expansion
High Energy Physics - Phenomenology
2009-10-30 v1
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.
Cite
@article{arxiv.hep-ph/9711318,
title = {NLO correction to Higgs boson parameters in the 1/N expansion},
author = {T. Binoth and A. Ghinculov and J. J. van der Bij},
journal= {arXiv preprint arXiv:hep-ph/9711318},
year = {2009}
}
Comments
5 pages LaTex, 1 eps figure included. To appear in Phys.Lett.B