NLO predictions for the production of a spin-two particle at the LHC
May 30, 2016
7 pages
Published in:
- Phys.Lett.B 770 (2017) 507-513
- Published: Jul 10, 2017
e-Print:
- 1605.09359 [hep-ph]
Report number:
- CERN-TH-2016-122,
- CP3-16-25,
- IPPP-16-42,
- MCNET-16-17,
- SLAC-PUB-16528
View in:
Citations per year
Abstract: (Elsevier)
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.Note:
- 10 pages, 5 figures, 1 table; v2: update references, rewrite the introduction, add mass scanning, remove all 750 GeV references, the model file can be found http://feynrules.irmp.ucl.ac.be/wiki/NLOModels
- LHC
- Spin-two
- QCD
- new physics
- CERN LHC Coll
- p p: scattering
- new particle: production
- new particle: spin
- spin: 2
- new particle: decay
References(50)
Figures(5)
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