Automatic predictions in the Georgi-Machacek model at next-to-leading order accuracy
(2016) Physical Review D — Vol. 93, n° 3 (2016) (2016)
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- Abstract
- We study the phenomenology of the Georgi-Machacek model at next-to-leading order in QCD matched to a parton shower, using a fully automated tool chain based on MadGraph5_aMC@NLO and FeynRules. We focus on the production of the fermiophobic custodial fiveplet scalars H50, H5±, and H5±± through vector boson fusion (VBF), associated production with a vector boson (VH5), and scalar pair production (H5H5). For these production mechanisms we compute next-to-leading order corrections to production rates as well as to differential distributions. Our results demonstrate that the Standard Model overall K-factors for such processes cannot in general be directly applied to beyond-the-Standard-Model distributions, due both to differences in the scalar electroweak charges and to the variation of the K-factors over the differential distributions.
- Affiliations
Durham IPPP
Citations
Degrande, C., Hartling, K., Logan, H. E., Peterson, A. D., & Zaro, M. (2016). Automatic predictions in the Georgi-Machacek model at next-to-leading order accuracy. Physical Review D, 93(3 (2016)). https://doi.org/10.1103/physrevd.93.035004 (Original work published 2016)