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- W3123133713 abstract "By considering a non-linear electroweak chiral Lagrangian, including the Higgs, coupled to heavy quarks, and the equivalence theorem, we compute the one-loop scattering amplitudes $$W^+W^-rightarrow tbar{t}$$ , $$ZZrightarrow tbar{t}$$ and $$hhrightarrow tbar{t}$$ (in the regime $$M_t^2/v^2ll sqrt{s}M_t/v^2ll s/v^2$$ and to NLO in the effective theory). We calculate the scalar partial-wave helicity amplitudes which allow us to check unitarity at the perturbative level in both $$M_t/v$$ and s/v. As with growing energy perturbative unitarity deteriorates, we also introduce a new unitarization method with the right analytical behavior on the complex s-plane and that can support poles on the second Riemann sheet to describe resonances in terms of the Lagrangian couplings. Thus we have achieved a consistent phenomenological description of any resonant $$tbar{t}$$ production that may be enhanced by a possible strongly interacting electroweak symmetry breaking sector." @default.
- W3123133713 created "2021-02-01" @default.
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- W3123133713 date "2017-07-01" @default.
- W3123133713 modified "2023-10-06" @default.
- W3123133713 title "Top–antitop production from $$W^+_L W^-_L$$ W L + W L - and $$Z_L Z_L$$ Z L Z L scattering under a strongly interacting symmetry-breaking sector" @default.
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- W3123133713 doi "https://doi.org/10.1140/epjc/s10052-017-4991-6" @default.
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