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

In this paper, we study the possibility to obtain a massless scalar boson forwhich quantum corrections to the mass vanish at all loop-order, which has beenrecently understood to be due to a shift symmetry making the scalar a Goldstoneboson. We present the effective four-dimensional Lagrangian of asix-dimensional gauge theory compactified on a torus with magnetic flux.Because of this magnetic field, a symmetry of translation in the extradimensions is broken which implies the existence of a massless scalar boson. Wethen explicitly check that a model with two U(1) gauge symmetries contains ascalar boson with finite mass but protected from large quantum corrections.Finally, we study the presence of tachyons in the model with non-abelian gaugesymmetry. In particular, we propose a way to eliminate these tachyons and wecompute the full mass spectrum of the scalars in this theory. Finally, we showthat our method preserve the chirality of fermions in the model.

Tachyons and (non)vanishing scalar masses in six-dimensional gauge theories with flux compactification