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

The one-loop contribution of the excited Kaluza-Klein (KK) modes of the$SU_L(2)$ gauge group on the off-shell $WW\gamma$ and $WWZ$ vertices iscalculated in the context of a pure Yang-Mills theory in five dimensions andits phenomenological implications discussed. The use of a gauge-fixingprocedure for the excited KK modes that is covariant under the standard gaugetransformations of the $SU_L(2)$ group is stressed. A gauge-fixing term and theFaddeev-Popov ghost sector for the KK gauge modes that are separately invariantunder the standard gauge transformations of $SU_L(2)$ are presented. It isshown that the one-loop contributions of the KK modes to the off-shell$WW\gamma$ and $WWZ$ vertices are free of ultraviolet divergences andwell-behaved at high energies. It is found that for a size of the fifthdimension of $R^{-1}\sim 1TeV$, the one-loop contribution of the KK modes tothese vertices is about one order of magnitude lower than the correspondingstandard model radiative correction. This contribution is similar to the oneestimated for new gauge bosons contributions in other contexts. Tree-leveleffects on these vertices induced by operators of higher canonical dimensionare also investigated. It is found that these effects are lower than thosegenerated at the one-loop order by the KK gauge modes.

One-loop effects of extra dimensions on the WW\gamma and WWZ vertices