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

In some four-dimensional orientifolds, U(1) gauge fields that are free offour-dimensional anomalies can still be massive. It is shown that this is dueto mass-generating six-dimensional anomalies. Six-dimensional anomalies affectfour-dimensional masses via decompactifications.Comment: LaTeX, 26 pages (v2), final version to be published in JHE

4D anomalous U(1)'s, their masses and their relation to 6D anomalies