https://doi.org/10.1140/epjc/s10052-017-4768-y
Regular Article - Theoretical Physics
Coupling WW, ZZ unitarized amplitudes to 
in the TeV region
Departamento de Física Teórica I, Universidad Complutense de Madrid, 28040, Madrid, Spain
* e-mail: rdelgadol@ucm.es
Received:
21
December
2016
Accepted:
19
March
2017
Published online:
31
March
2017
We define and calculate helicity partial-wave amplitudes for processes linking the Electroweak Symmetry Breaking Sector (EWSBS) to , employing (to NLO) the Higgs-EFT (HEFT) extension of the Standard Model and the Equivalence Theorem, while neglecting all particle masses. The resulting amplitudes can be useful in the energy regime (
). We also deal with their unitarization so that resonances of the EWSBS can simultaneously be described in the initial or final states. Our resulting amplitudes satisfy unitarity, perturbatively in 
, but for all s values. In this way we improve on the HEFT that fails as interactions become stronger with growing s and we provide a natural framework for the decay of dynamically generated resonances into WW, ZZ and pairs.
© The Author(s), 2017
