English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Higgsless models with fermions whose SU(2) properties are "ideallydelocalized," such that the fermion's probability distribution is appropriatelyrelated to the W boson wavefunction, have been shown to minimize deviations inprecision electroweak parameters. As contributions to the S parameter vanish toleading order, current constraints on these models arise from limits ondeviations in multi-gauge-boson vertices. We compute the form of the triple andquartic gauge boson vertices in these models and show that these constraintsprovide lower bounds only of order a few hundred GeV on the masses of thelightest KK resonances. Higgsless models with ideal fermion delocalizationprovide an example of extended electroweak gauge interactions with suppressedcouplings of fermions to extra gauge-bosons, and these are the only models forwhich triple-gauge-vertex measurements provide meaningful constraints. Werelate the multi-gauge couplings to parameters of the electroweak chiralLagrangian, and the parameters obtained in these SU(2) x SU(2) models applyequally to the corresponding five dimensional gauge theory models of QCD. Wealso discuss the collider phenomenology of the KK resonances in models withideal delocalization. These resonances are found to be fermiophobic, thereforetraditional direct collider searches are not sensitive to them and measurementsof gauge-boson scattering will be needed to find them.Comment: 28 pages, 1 eps figure. Typo in reference correcte

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