Higgs Decay to Gluons at NNLO
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
We present an analytical calculation of the next-to-next-to-leading order corrections to the partial decay width for a Higgs boson in the intermediate mass range. We apply an asymptotic expansion for and compute three terms in the expansion. The leading term confirms the results present in the literature. It is argued that our result is equivalent to an exact calculation up to . For a Higgs boson mass of 120 GeV the power-suppressed terms lead to corrections of about 9% in the next-to-next-to-leading order coefficient.
Cite
@article{arxiv.0708.0916,
title = {Higgs Decay to Gluons at NNLO},
author = {Marco Schreck and Matthias Steinhauser},
journal= {arXiv preprint arXiv:0708.0916},
year = {2008}
}
Comments
13 pages, minor corrections, references corrected and added, to be published in Phys. Lett. B