@Article{Pich_etal2020,
author="Pich, A.
and Rosell, I.
and Sanz-Cillero, J. J.",
title="Bottom-up approach within the electroweak effective theory: Constraining heavy resonances",
journal="Physical Review D",
year="2020",
publisher="Amer Physical Soc",
volume="102",
number="3",
pages="035012--12pp",
abstract="The LHC has confirmed the existence of a mass gap between the known particles and possible new states. Effective field theory is then the appropriate tool to search for low-energy signals of physics beyond the Standard Model. We adopt the general formalism of the electroweak effective theory, with a nonlinear realization of the electroweak symmetry breaking, where the Higgs is a singlet with independent couplings. At higher energies we consider a generic resonance Lagrangian which follows the above-mentioned nonlinear realization and couples the light particles to bosonic heavy resonances with J(P) = 0(+/-) and J(P) = 1(+/-). Integrating out the resonances and assuming a proper short-distance behavior, it is possible to determine or to constrain most of the bosonic low-energy constants in terms of resonance masses. Therefore, the current experimental bounds on these bosonic low-energy constants allow us to constrain the resonance masses above the TeV scale, by following a typical bottom-up approach, i.e., the fit of the low-energy constants to precise experimental data enables us to learn about the high-energy scales, the underlying theory behind the Standard Model.",
optnote="WOS:000557730600006",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4497), last updated on Tue, 25 Aug 2020 07:43:42 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.102.035012",
opturl="https://arxiv.org/abs/2004.02827",
opturl="https://doi.org/10.1103/PhysRevD.102.035012",
language="English"
}