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arXiv · 2012.12639

Electroweak effective theory and beyond Standard Model resonances

Juan Jose Sanz-Cillero·Antonio Pich·Ignasi Rosell
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Abstract

We consider a non-linear realization of the electroweak symmetry-breaking pattern $SU(2)_L\times SU(2)_R/SU(2)_{L+R}$ to construct a low-energy effective theory, later extended by the inclusion of heavy new-physics resonances. After assuming appropriate high-energy constraints given by Weinberg sum-rules and the asymptotic behaviour of form-factors, we obtain relations between resonance masses and some low-energy effective couplings. These predictions are compared with current experimental data and some resonance mass bounds are inferred.

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Juan Jose Sanz-Cillero, Antonio Pich, Ignasi Rosell. 2020-12-23. Electroweak effective theory and beyond Standard Model resonances. https://arxiv.org/abs/2012.12639

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