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Playing with fermion couplings in Higgsless models
High Energy Physics - Phenomenology · Submitted 22 Feb 2005
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Therefore, with some fine tuning, it is possible to satisfy the constraints from the electroweak data.
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The abstract, sentence by sentence
We discuss the fermion couplings in a four dimensional SU(2) linear moose model by allowing for direct couplings between the left-handed fermions on the boundary and the gauge fields in the internal sites. This is realized by means of a product of non linear $\sigma$-model scalar fields which, in the continuum limit, is equivalent to a Wilson line. The effect of these new non local couplings is a contribution to the $\epsilon_3$ parameter which can be of opposite sign with respect to the one coming from the gauge fields along the string. Therefore, with some fine tuning, it is possible to satisfy the constraints from the electroweak data.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We discuss the fermion couplings in a four dimensional SU(2) linear moose model by allowing for direct couplings between the left-handed fermions on the boundary and the gauge fields in the internal sites. | contribution 0.90 | 0.77 | 0.06 | asserted 0.95 |
| s1 | This is realized by means of a product of non linear $\sigma$-model scalar fields which, in the continuum limit, is equivalent to a Wilson line. | method 0.98 | 0.62 | 0.04 | asserted 1.00 |
| s2 | The effect of these new non local couplings is a contribution to the $\epsilon_3$ parameter which can be of opposite sign with respect to the one coming from the gauge fields along the string. | result 0.98 | 0.79 | 0.22 | asserted 0.60 |
| s3 | Therefore, with some fine tuning, it is possible to satisfy the constraints from the electroweak data. | interpretation 0.69 | 0.62 | 0.52 | hedged possibility 0.99 |
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The paper
Original abstract
We discuss the fermion couplings in a four dimensional SU(2) linear moose model by allowing for direct couplings between the left-handed fermions on the boundary and the gauge fields in the internal sites. This is realized by means of a product of non linear $\sigma$-model scalar fields which, in the continuum limit, is equivalent to a Wilson line. The effect of these new non local couplings is a contribution to the $\epsilon_3$ parameter which can be of opposite sign with respect to the one coming from the gauge fields along the string. Therefore, with some fine tuning, it is possible to satisfy the constraints from the electroweak data.
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References
How the literature uses it
17 arXiv papers cite this in 44 sentences
Papers citing it · 31 sentences without a confident label
Builds on it 2 papers
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In this note we consider a 5D version of a linear moose model previously proposed, [ref] .
Holographic approach to a minimal Higgsless model · Introduction · 0.95
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The procedure can be generalized to several triplets [ref] .
Spin-1 resonances · Effective Lagrangians for new spin-1 triplets · 0.86
Uses its method or tool 1 paper
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After identifying the physical parameters as in [ref] and following the procedure used in [ref] , that is identifying the physical fields by diagonalizing $L^(2)_eff$ in eq.
Holographic approach to a minimal Higgsless model · The interaction · 1.00
Compares with it 2 papers
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In general, the results obtained with the holographic procedure are in agreement with the continuum limit of the corresponding linear moose model studied in [ref] .
Holographic approach to a minimal Higgsless model · Introduction · 0.99
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Thus, the gauge boson spectrum and phenomenology will be distinct from other $SU(2)^3×U(1)$ extended gauge group models, such as the 4-site Higgsless model [ref] , that break via the linear moose shown in Fig. [ref](b).
Constraints on Little Higgs with Fully-Radiative Electroweak Symmetry Breaking · Gauge Sector · 1.00
Cites it as support 1 paper
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As we demonstrate in the Appendix, this amount of delocalization insures the equality of the tree-level three-site model couplings to those of the standard model, up to corrections of order $x^4$ [ref] and the absence of large tree-level corrections to precision electroweak measurements [ref] .
The Flavor Structure of the Three-Site Higgsless Model · Gauge-Boson Couplings at Tree-Level · 0.96
Cites it as background 3 papers
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We review in this Section the continuum limit of the moose model of [ref] and the holographic approach for gauge fields proposed in [ref] .
Holographic approach to a minimal Higgsless model · Holographic analysis of the gauge sector · 0.89
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Its theoretical foundations are presented in [ref] , while some of its phenomenological consequences are analyzed in [ref] .
Interference effects in heavy W'-boson searches at the LHC · The 4-site Higgsless model · 0.95
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Higgsless models [ref] of electroweak symmetry breaking provide effective low-energy theories of a strongly-interacting symmetry breaking sector [ref] which, in the case of “delocalized" fermions [ref] , can be consistent with electroweak precision measurements [ref] .
Z to b bbar and Chiral Currents in Higgsless Models · Introduction · 0.98
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