Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons
- Frixione, S.PH Department, TH Unit, CERN, CH-1211, Geneva 23, Switzerland
- Hirschi, V.(SLAC, National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025-7090, U.S.A.)
- Pagani, D.(Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de Louvain, B-1348, Louvain-la-Neuve, Belgium)
- Shao, H.-S.(PH Department, TH Unit, CERN, CH-1211, Geneva 23, Switzerland)
- Zaro, M.(Sorbonne Universités, UPMC Université Paris 06, UMR 7589, LPTHE, F-75005, Paris, France)
Publication date
October 2015
DOIAbstract
We compute the contribution of order α S 2 α 2 to the cross section of a top-antitop pair in association with at least one heavy Standard Model boson — Z , W ± , and Higgs — by including all effects of QCD, QED, and weak origin and by working in the automated M ad G raph 5_ a MC@NLO framework. This next-to-leading order contribution is then combined with that of order α S 3 α , and with the two dominant lowest-order ones, α S 2 α and α S α 2 , to obtain phenomenological results relevant to a 8, 13, and 100 TeV pp collider
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