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The Structure of Corrections to Electroweak Interactions in Higgsless Models
High Energy Physics - Phenomenology · Submitted 7 Jun 2004
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In particular we find that in this class of models, so long as the theory remains unitary, S-4 c^2__W T > O(1), where S and T are the usual oblique parameters.
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The abstract, sentence by sentence
Recently, ``Higgsless'' models of electroweak symmetry breaking have been proposed. Based on compactified five-dimensional gauge theories, these models achieve unitarity of electroweak boson self-interactions through the exchange of a tower of massive vector bosons rather than the exchange of a scalar Higgs boson. In this paper, using deconstruction, we analyze the form of the corrections to the electroweak interactions in a large class of these models, allowing for arbitrary 5-D geometry, position-dependent gauge coupling, and brane kinetic energy terms. We show that many models considered in the literature, including those most likely to be phenomenologically viable, are in this class. By analyzing the asymptotic behavior of the correlation function of gauge currents at high momentum, we extract the exact form of the relevant correlation functions at tree-level and compute the corrections to precision electroweak observables in terms of the spectrum of heavy vector bosons. We determine when nonoblique corrections due to the interactions of fermions with the heavy vector bosons become important, and specify the form such interactions can take. In particular we find that in this class of models, so long as the theory remains unitary, S-4 c^2__W T > O(1), where S and T are the usual oblique parameters. We concur with the result of Cacciapaglia et.al. that small or negative S is possible -- though only at the expense of substantial negative T at tree-level. Although we stress our results as they apply to continuum 5-D models, they apply also to models of extended electroweak gauge symmetries motivated by models of hidden local symmetry.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Recently, ``Higgsless'' models of electroweak symmetry breaking have been proposed. | background 1.00 | 0.04 | 0.01 | asserted 0.99 |
| s1 | Based on compactified five-dimensional gauge theories, these models achieve unitarity of electroweak boson self-interactions through the exchange of a tower of massive vector bosons rather than the exchange of a scalar Higgs boson. | background 1.00 | 0.05 | 0.03 | asserted 1.00 |
| s2 | In this paper, using deconstruction, we analyze the form of the corrections to the electroweak interactions in a large class of these models, allowing for arbitrary 5-D geometry, position-dependent gauge coupling, and brane kinetic energy terms. | contribution 0.82 | 0.94 | 0.05 | asserted 0.96 |
| s3 | We show that many models considered in the literature, including those most likely to be phenomenologically viable, are in this class. | contribution 0.66 | 0.73 | 0.04 | asserted 0.97 |
| s4 | By analyzing the asymptotic behavior of the correlation function of gauge currents at high momentum, we extract the exact form of the relevant correlation functions at tree-level and compute the corrections to precision electroweak observables in terms of the spectrum of heavy vector bosons. | method 0.77 | 0.96 | 0.13 | asserted 1.00 |
| s5 | We determine when nonoblique corrections due to the interactions of fermions with the heavy vector bosons become important, and specify the form such interactions can take. | contribution 0.66 | 0.95 | 0.07 | asserted 1.00 |
| s6 | In particular we find that in this class of models, so long as the theory remains unitary, S-4 c^2__W T > O(1), where S and T are the usual oblique parameters. | result 1.00 | 0.96 | 0.63 | asserted 1.00 |
| s7 | We concur with the result of Cacciapaglia et.al. that small or negative S is possible -- though only at the expense of substantial negative T at tree-level. | result 0.90 | 0.38 | 0.14 | hedged possibility 0.53 |
| s8 | Although we stress our results as they apply to continuum 5-D models, they apply also to models of extended electroweak gauge symmetries motivated by models of hidden local symmetry. | interpretation 0.47 | 0.36 | 0.04 | asserted 0.91 |
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The paper
Original abstract
Recently, ``Higgsless'' models of electroweak symmetry breaking have been proposed. Based on compactified five-dimensional gauge theories, these models achieve unitarity of electroweak boson self-interactions through the exchange of a tower of massive vector bosons rather than the exchange of a scalar Higgs boson. In this paper, using deconstruction, we analyze the form of the corrections to the electroweak interactions in a large class of these models, allowing for arbitrary 5-D geometry, position-dependent gauge coupling, and brane kinetic energy terms. We show that many models considered in the literature, including those most likely to be phenomenologically viable, are in this class. By analyzing the asymptotic behavior of the correlation function of gauge currents at high momentum, we extract the exact form of the relevant correlation functions at tree-level and compute the corrections to precision electroweak observables in terms of the spectrum of heavy vector bosons. We determine when nonoblique corrections due to the interactions of fermions with the heavy vector bosons become important, and specify the form such interactions can take. In particular we find that in this class of models, so long as the theory remains unitary, S-4 c^2__W T > O(1), where S and T are the usual oblique parameters. We concur with the result of Cacciapaglia et.al. that small or negative S is possible -- though only at the expense of substantial negative T at tree-level. Although we stress our results as they apply to continuum 5-D models, they apply also to models of extended electroweak gauge symmetries motivated by models of hidden local symmetry.
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References
How the literature uses it
11 arXiv papers cite this in 12 sentences
Papers whose main result relates to this one's
States the same result 1 paper
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In particular we find that in this class of models, so long as the theory remains unitary, S - 4 c^2_W T > O(1), where S and T are the usual oblique parameters.
Oblique Corrections in Deconstructed Higgsless Models · 1.00
Papers citing it · 8 sentences without a confident label
Uses its method or tool 1 paper
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Finally assuming, for the moment, that $ϵ^†_L ϵ_L$ is flavor-universal (proportional to the identity), we may use the techniques of [ref] to compute the value of $αS$ from the $Z$-boson couplings to the $T_3$ and $Y$ currents
The Flavor Structure of the Three-Site Higgsless Model · Electroweak Couplings in the Three-Site Model · 1.00
Cites it as background 3 papers
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The key features of these models [ref] that are relevant to our discussion are as follows: Spin-1 resonances created by the strong dynamics underlying the sigma fields are described as massive gauge bosons, following the Hidden-Local-Symmetry scenario originally used for QCD [ref] and also the BESS [ref] models.
Discovering Strong Top Dynamics at the LHC · Introduction · 0.84
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An interesting alternative to the Higgs mechanism is the wide class of Higgsless models: theories where there are no light scalar particles and the $SU(2)_L ×U(1)_Y →U(1)_Q$ breaking is generated by new strong dynamics above the electroweak scale (see e.g. Ref. [ref] ).
Effective theories of electroweak symmetry breaking · Light vectors in the electroweak chiral Lagrangian · 0.88
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We will refer to the models with replicated gauge symmetries as moose models [ref] .
Holographic approach to a minimal Higgsless model · Introduction · 0.91
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