0
views
0
recommends
+1 Recommend
0 collections
0
shares
• Record: found
• Abstract: found
• Article: found
Is Open Access

Properties of the decay $$H\to\gamma\gamma$$ using the approximate $$\alpha_s^4$$-corrections and the principle of maximum conformality

Preprint

Bookmark
There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

The Higgs boson decay channel, $$H\to\gamma\gamma$$, is one of the most important channels for probing the properties of the Higgs boson. In the paper, we reanalyze its decay width by using the QCD corrections up to $$\alpha_s^4$$-order level. The principle of maximum conformality has been adopted to achieve a precise pQCD prediction without conventional renormalization scheme-and-scale ambiguities. By taking the Higgs mass as the one given by the ATLAS and CMS collaborations, i.e. $$M_{H}=125.09\pm0.21\pm0.11$$ GeV, we obtain $$\Gamma(H\to \gamma\gamma)|_{\rm LHC}=9.364^{+0.076}_{-0.075}$$ KeV.

Author and article information

Journal
22 November 2018
Article
1811.09179