Higgs production in heavy quark annihilation through next-to-next-to-leading order QCD
Dec 15, 201521 pages
Published in:
- Eur.Phys.J.C 76 (2016) 5, 252
- Published: May 2, 2016
e-Print:
- 1512.04901 [hep-ph]
Report number:
- TTH-15-38
View in:
Citations per year
Abstract: (Springer)
The total inclusive cross section for charged and neutral Higgs production in heavy-quark annihilation is presented through NNLO QCD. It is shown that, aside from an overall factor, the partonic cross section is independent of the initial-state quark flavors, and that any interference terms involving two different Yukawa couplings vanish. A simple criterion for defining the central renormalization and factorization scale is proposed. Its application to the process yields results which are compatible with the values usually adopted for this process. Remarkably, we find little variation in these values for the other initial-state quark flavors. Finally, we disentangle the impact of the different parton luminosities from genuine hard NNLO effects and find that, for the central scales, a naive rescaling by the parton luminosities approximates the full result remarkably well.Note:
- 21 pages, 7 figures, 1 table. Matches published version
- Higgs particle: production
- heavy quark: annihilation
- higher-order: 2
- quark: flavor
- scale: factorization
- coupling: Yukawa
- quantum chromodynamics
- initial state
- parton
- renormalization
References(38)
Figures(25)
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