# On the equivalence theorem in the χPT description of the symmetry breaking sector of the standard model

@article{Dobado1993OnTE, title={On the equivalence theorem in the $\chi$PT description of the symmetry breaking sector of the standard model}, author={Antonio Dobado and Jos{\'e} R. Pel{\'a}ez}, journal={Nuclear Physics}, year={1993}, volume={425}, pages={110-136} }

Abstract We develop an alternative formulation of the symmetry breaking sector of the Standard Model as a gauged non-linear sigma model (NLSM) following the philosophy of the Chiral lagrangian approach, which is the only compatible with all the experimental and theoretical constraints. We derive the BRS symmetry of the model and the corresponding quantum lagrangian, which is a generalization of the standard Faddeev-Popov method, in a way which is covariant with respect to the reparametrizations… Expand

#### 28 Citations

Consistent Dyson summation of Higgs propagators in non-linear parameterizations revisited

- Physics
- 2004

Abstract.As we demonstrate in a process independent way, in a non-linear parameterization of the scalar sector of the standard model the Dyson summation of the Higgs self-energy can be performed… Expand

Non-decoupling effects of the SM Higgs boson to one loop

- Physics
- 1995

We study the complete non-decoupling effects of the standard model Higgs boson to one loop. Using effective field theory methods, we integrate out the Higgs boson and represent its non-decoupling… Expand

The effective chiral lagrangian of the MSM at one- and two-loop order

- Physics
- 1996

The formalism of the matching conditions between transverse connected Green functions is extended to include the two next to leading corrections, namely the two-loop MH2 and the one-loop 1/MH2… Expand

Learning about the strongly interacting symmetry breaking sector at the LHC

- Physics
- 1995

In the present work we study the predictions for WZ and ZZ production at the LHC with the Electroweak Chiral Lagrangian (EChL) approach. Our analysis will be focused on the less favored case from the… Expand

top-BESS Model and its phenomenology

- Physics
- 2011

We introduce the top-BESS model which is the effective description of the strong electroweak symmetry breaking with a single new SU(2)_L+R triplet vector resonance. The model is a modification of the… Expand

Falsifying models of new physics via WW scattering.

- Physics, Medicine
- Physical review letters
- 2007

We show that the coefficients of operators in the electroweak chiral Lagrangian can be bounded if the underlying theory obeys the usual assumptions of Lorentz invariance, analyticity, unitarity, and… Expand

One-loop WLWL and ZLZL scattering from the electroweak Chiral Lagrangian with a light Higgs-like scalar

- Physics
- 2014

A bstractBy including the recently discovered Higgs-like scalar φ in the Electroweak Chiral Lagrangian, and using the Equivalence Theorem, we carry out the complete one-loop computation of the… Expand

Light 'Higgs', yet strong interactions

- Physics
- 2013

The claimed finding of a light Higgs boson makes the minimal Standard Model unitary. Yet, we recall that the general low-energy dynamics for the minimal electroweak symmetry breaking sector with… Expand

Determination of the electroweak chiral-lagrangian parameters at the LHC

- Physics
- 1996

In this work we report on the results obtained in a detailed and systematical study of the possibility to measure the parameters appearing in the electroweak chiral lagrangian. The main novelty of… Expand

Anomalous gtt couplings in the littlest Higgs model with T-parity

- Physics
- 2009

In this work we calculate the leading electroweak (EW) corrections to the anomalous gtt coupling in the littlest Higgs model with T-parity, by applying the Goldstone boson equivalence theorem. In the… Expand

#### References

SHOWING 1-10 OF 89 REFERENCES

Phenomenological lagrangian approach to the symmetry breaking sector of the standard model

- Physics
- 1989

Abstract A chiral lagrangian expansion is used in order to parametrize the unknown symmetry breaking dynamics of the standard model, in the hypothetical case of a strongly interacting symmetry… Expand

Anomalous condensates and the equivalence theorem

- Physics
- 1994

Abstract A recently published report has called into question the validity of the equivalence theorem in dynamically broken gauge theories in which the fermions making up the symmetry breaking… Expand

Chiral lagrangians as a tool to probe the symmetry breaking sector of the SM at LEP

- Physics
- 1991

Abstract An effective SU (2) L ×U(1) Y invariant chiral lagrangian can accomodate any symmetry breaking scheme in the standard model. It is shown that all process-independent quantities relevant to… Expand

The principle of BRS symmetry: An alternative approach to Yang-Mills theories

- Physics
- 1982

Abstract Postulating BRS and anti-BRS symmetry of the quantum Yang-Mills lagrangian and of the measure of the functional integral, we prove gauge invariance and renormalizability and recover the… Expand

The Electroweak chiral Lagrangian for the Standard Model with a heavy Higgs

- Physics
- 1994

Abstract The most general chiral lagrangian for electroweak interactions with the complete set of SU (2)L × U (1)Y invariant operators up to dimension four is considered. The two-point and… Expand

Renormalization of the abelian Higgs-Kibble model

- Mathematics, Physics
- 1975

This article is devoted to the perturbative renormalization of the abelian Higgs-Kibble model, within the class of renormalizable gauges which are odd under charge conjugation. The Bogoliubov… Expand

The Two Quantum Symmetries Associated With a Classical Symmetry

- Physics
- 1983

Given a classical local symmetry, it is shown how to build two associated quantum symmetries s and s. These generalized BRS and anti-BRS symmetries interchange classical and ghost fields. A direct… Expand

The equivalence theorem and global anomalies

- Physics
- 1993

Abstract In the presence of some forms of global anomalies, the equivalence theorem, which relates the interactions of longitudinal gauge bosons to those of the Goldstone bosons, is not always valid.… Expand

The equivalence theorem in the abelian Higgs theory

- Physics
- 1992

Abstract The equivalence theorem relates the high energy scattering amplitudes of longitudinal vector bosons to the amplitudes for the corresponding unphysical Goldstone bosons. The theorem recieves… Expand

Derivation of gauge invariance from high-energy unitarity bounds on the S matrix

- Physics
- 1974

A systematic search is made for all renormalizable theories of heavy vector bosons. It is argued that in any renormalizable Lagrangian theory high-energy unitarity bounds should not be violated in… Expand