Moose models with vanishing<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi></mml:math>parameter

Casalbuoni, R.; Curtis, S. De; Dominici, D.

doi:10.1103/physrevd.70.055010

Cited by 67 publications

(85 citation statements)

References 37 publications

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“…An alternative approach to analyzing the properties of Higgsless models [17,18,19,20,21,22,23,24] is to use deconstruction [25,26] and to compute the electroweak parameters αS and αT [27,28,29] in a related linear moose model [30]. We have shown [24] how to compute all four of the leading zero-momentum electroweak parameters defined by Barbieri et.…”

Section: Introductionmentioning

confidence: 99%

Multigauge-boson vertices and chiral Lagrangian parameters in Higgsless models with ideal fermion delocalization

Chivukula

Simmons

et al. 2005

Phys. Rev. D

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Higgsless models with fermions whose SU (2) properties are "ideally delocalized," such that the fermion's probability distribution is appropriately related to the W boson wavefunction, have been shown to minimize deviations in precision electroweak parameters. As contributions to the S parameter vanish to leading order, current constraints on these models arise from limits on deviations in multi-gauge-boson vertices. We compute the form of the triple and quartic gauge boson vertices in these models and show that these constraints provide lower bounds only of order a few hundred GeV on the masses of the lightest KK resonances. Higgsless models with ideal fermion delocalization provide an example of extended electroweak gauge interactions with suppressed couplings of fermions to extra gauge-bosons, and these are the only models for which triple-gauge-vertex measurements provide meaningful constraints. We relate the multi-gauge couplings to parameters of the electroweak chiral Lagrangian, and the parameters obtained in these SU (2) × SU (2) models apply equally to the corresponding five dimensional gauge theory models of QCD. We also discuss the collider phenomenology of the KK resonances in models with ideal delocalization. These resonances are found to be fermiophobic, therefore traditional direct collider searches are not sensitive to them and measurements of gauge-boson scattering will be needed to find them.-1 -

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Section: Introductionmentioning

confidence: 99%

Multigauge-boson vertices and chiral Lagrangian parameters in Higgsless models with ideal fermion delocalization

Chivukula

Simmons

et al. 2005

Phys. Rev. D

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“…In such models the Kaluza-Klein towers of the gauge bosons act as the moderators of unitarity in gauge boson scattering in four dimensions. In a different perspective, in many versions, these models can be considered as four dimensional deconstructed theories with a chain of SU(2) gauge groups [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75]. The BESS model above can be considered as some special case of the deconstructed models.…”

Section: Jhep03(2012)060mentioning

confidence: 99%

Probing strongly interacting W’s at the ILC with polarized beams

Ananthanarayan

Patra

Poulose

2012

J. High Energ. Phys.

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Abstract:We study the possibility of fingerprinting a strongly interacting W boson sector which is consistent with present day LHC searches at the ILC with longitudinal as well as transversely polarized electron and positron beams. We account for the final state interaction using a suitable Omnès formalism in terms of a plausible resonance description, and carry out thorough analyses of cross sections, asymmetries and angular distributions of the W ′ s. We carry out a comparison with other extensions of the Standard Model, where heavy additional Z ′ bosons arise naturally. We also consider the effect of the strong final state interaction on a correlation that depends on (φ − − φ + ), where the φ ∓ are the azimuthal angles of decay leptons, and find that it is a useful discriminant.

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“…An alternative approach to analyzing the properties of Higgsless models [17,18,19,20,21,22,23,24] is to use deconstruction [25,26] and to compute the electroweak parameters [27,28,29] in a related linear moose model [30]. We have shown [24] how to compute all four of the leading zero-momentum electroweak parameters defined by Barbieri et.…”

Section: Introductionmentioning

confidence: 99%