NLO predictions for the production of a spin-two particle at the LHC
(2017) Physics Letters B — Vol. 770, p. 507-513 (2017)
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- Authors
Das, Goutam 
Shao, Hua-Sheng
- 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 MadGraph 5_a MC@NLO framework and can, therefore, be directly used in experimental simulations of spin-two particle production for arbitrary values of the mass and couplings.
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Citations
Das, G., Degrande, C., Hirschi, V., Maltoni, F., & Shao, H.-S. (2017). NLO predictions for the production of a spin-two particle at the LHC. Physics Letters B, 770, 507-513. https://doi.org/10.1016/j.physletb.2017.05.007 (Original work published 2017)