Gluon-induced Higgs-strahlung at next-to-leading order QCD-Reference-Cited by-同舟云学术

Gluon-induced Higgs-strahlung at next-to-leading order QCD

Published:2013-02 Issue:2 Volume:2013 Page:
ISSN:1029-8479
Container-title:Journal of High Energy Physics
language:en
Short-container-title:J. High Energ. Phys.

Author:

Altenkamp Lukas,Dittmaier Stefan,Harlander Robert V.,Rzehak Heidi,Zirke Tom J. E.

Abstract

Abstract Gluon-induced contributions to the associated production of a Higgs and a Z boson are calculated with NLO accuracy in QCD. They constitute a significant contribution to the cross section for this process. The perturbative correction factor (K-factor) is calculated in the limit of infinite top-quark and vanishing bottom-quark masses. The qualitative similarity of the results to the well-known ones for the gluon-fusion process gg → H allows to conclude that rescaling the LO prediction by this K-factor leads to a reliable NLO result and realistic error estimate due to missing higher-order perturbative effects. We consider the total inclusive cross section as well as a scenario with a boosted Higgs boson, where the Higgs boson’s transverse momentum is restricted to values p T,H > 200 GeV. In both cases, we find large correction factors K ≈ 2 in most of the parameter space.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Link

https://link.springer.com/content/pdf/10.1007/JHEP02(2013)078.pdf

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