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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study two-site deconstructions of the $SU(2)_L$ gauge group factor of theSM. Models based on this approach can explain the hierarchies of the quarkmasses and CKM mixing between the third and light families if these fields arelocalised on different sites, leading to a global accidental $U(2)_q\timesU(3)_u\times U(3)_d$ flavour symmetry. This symmetry prevents dangerously largeeffects in flavour observables, making a TeV scale realisation possible. Giventhe structure of PMNS matrix in the neutrino sector, we explore differentpossibilities for the arrangement of the leptons on the two sites, and considerdifferent models with $U(2)_{\ell}$ or $U(3)_{\ell}$ flavour symmetries. Thephenomenology of the models is mostly governed by a massive vector triplet of$SU(2)_L$. We study the interesting interplay between LHC searches andprecision observables. In particular, one of the models can give a sizeablelepton flavour universal effect in the Wilson coefficient $C_9$ while naturallysuppressing contributions to $C_{10}$, as suggested by current $b\tos\ell^+\ell^-$ data, predicting simultaneously a mild positive shift in the $W$boson mass.

$SU(2)_L$ deconstruction and flavour (non)-universality