35 citations · 82 across the 11 of their papers we have counts for
17 papers
On the relevance of fermion loops for scattering
Carlos Quezada-Calonge, Antonio Dobado, Juan José Sanz-Cillero
We study the one-loop corrections to Vector Boson Scattering (in particular elastic scattering) within the framework of effective theories. Re-scattering via intermediate…
The flair of Higgsflare: Distinguishing electroweak EFTs with
Raquel Gomez-Ambrosio, Felipe J. Llanes-Estrada, Alexandre Salas-Bernardez +1
The electroweak symmetry-breaking sector is one of the most promising and uncharted parts of the Standard Model; but it seems likely that new electroweak physics may be out of reac…
Hierarchy in double SU(2) models
Clara Álvarez-Luna, José A. R. Cembranos, Juan José Sanz-Cillero
In this work, we provide a simple model that studies the probability to obtain a given hierarchy between two scales. In particular, we work in a theory with an $SU(2)_L\times SU(2)…
Heavy states and electroweak effective approaches
Ignasi Rosell, Antonio Pich, Juan José Sanz-Cillero
The existence of a mass gap between the Standard Model (SM) and possible new states encourages us to use effective field theories. Here we follow the non-linear realization of the…
Toy models for hierarchy studies
Clara Álvarez-Luna, José A. R. Cembranos, Juan José Sanz-Cillero
We provide a simple computation in order to estimate the probability of a given hierarchy between two scales. In particular, we work in a model provided with a gauge symmetry, with…
Importance of fermion loops in elastic scattering
Antonio Dobado, Carlos Quezada-Calonge, Juan José Sanz-Cillero
We test the assumption that fermion-loop corrections to high energy scattering are negligible when compared to the boson-loop ones. Indeed, we find that, if the couplings…
Constraining resonances by using the electroweak effective theory
Ignasi Rosell, Antonio Pich, Juan José Sanz-Cillero
In the light of the mass gap between Standard Model (SM) states and possible new particles, effective field theories are a suitable approach. We take on the non-linear realization…
A bottom-up approach within the electroweak effective theory: constraining heavy resonances
Antonio Pich, Ignasi Rosell, Juan José Sanz-Cillero
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…
Effective theories and resonances in strongly-coupled electroweak symmetry breaking scenarios
Ignasi Rosell, Claudius Krause, Antonio Pich +1
Due to the mass gap between the Standard Model and possible New Physics states, electroweak effective approaches are appropriate. Although a linear realization of the electroweak s…
Heavy resonances and the electroweak effective theory
Ignasi Rosell, Claudius Krause, Antonio Pich +2
Taking into account the negative results of direct searches for beyond the Standard Model fields and the consequent mass gap between Standard Model and possible unknown states, the…
Resonant events at the LHC from a unitarized study of the EChL
R. L. Delgado, A. Dobado, D. Espriu +4
We present a study of the production of vector resonances at the LHC via vector boson scattering and explore the sensitivities to these resonances for expected LHC luminosit…
Tracks of resonances in electroweak effective Lagrangians
Ignasi Rosell, Claudius Krause, Antonio Pich +2
Taking into account the negative searches for New Physics at the LHC, electroweak effective theories are appropriate to deal with current energies. Tracks of new, higher scales can…
Sum-rule constraints on possible diphoton resonances at LHC
P. Roig, J. J. Sanz-Cillero
The study of the forward scattering amplitude of real massless gauge bosons , e.g. photons or gluons, leads to a sum-rule that can be used to…
Study of the lowest tensor and scalar resonances in the decay
O. Shekhovtsova, J. J. Sanz-Cillero, T. Przedzinski
In this note we present a new parametrization of the hadronic current for the decay derived from the chiral lagrangian with explicit inclusion of resonances. We have…
On the uncertainty estimates of the -pole determination by Padé approximants
Irinel Caprini, Pere Masjuan, Jacobo Ruiz de Elvira +1
We discuss the determination of the (or ) resonance by analytic continuation through Padé approximants of the -scattering amplitude from the physical region to th…
Electroweak chiral Lagrangian with a light Higgs
J. J. Sanz-Cillero
In this talk we discuss the structure of electroweak low-energy effective theories where the Higgs is non-linearly realized, typically in scenarios where the Higgs is a pseudo Namb…
Heavy Resonances in the Electroweak Effective Lagrangian
Joaquín Santos, Ignasi Rosell, Antonio Pich +1
As a first step towards the construction of a general electroweak effective Lagrangian incorporating heavy states, we present here a simplified version where only vector and axial-…