Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5494883 | Physics Letters B | 2017 | 7 Pages |
Abstract
We obtain predictions accurate at the next-to-leading order in QCD for the production of a generic spin-two particle in the most relevant channels at the LHC: production in association with coloured particles (inclusive, one jet, two jets and tt¯), with vector bosons (Z,W±,γ) and with the Higgs boson. We present total and differential cross sections as well as branching ratios as a function of the mass and the collision energy also considering the case of non-universal couplings to standard model particles. We find that the next-to-leading order corrections give rise to sizeable K factors for many channels, in some cases exposing the unitarity-violating behaviour of non-universal couplings scenarios, and in general greatly reduce the theoretical uncertainties. Our predictions are publicly available in the MadGraph5_aMC@NLO framework and can, therefore, be directly used in experimental simulations of spin-two particle production for arbitrary values of the mass and couplings.
Related Topics
Physical Sciences and Engineering
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Authors
Goutam Das, Céline Degrande, Valentin Hirschi, Fabio Maltoni, Hua-Sheng Shao,