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

We consider, both for unpolarized and longitudinally polarized electronbeams, the production of a top quark pair in e+e- collisions with subsequentsemileptonic top and nonleptonic anti-top decay and vice versa and investigateoptimized angular correlations which are sensitive to CP non-conservation inthe top quark production vertex. We calculate these correlations fortwo-Higgs--doublet extensions and the minimal supersymmetric extension of theStandard Model (SM) with CP violation beyond the Kobayashi-Maskawa phase. Whilethe sensitivity of the optimal correlation for tracing dispersive CP effects isenhanced with longitudinally polarized electron beams, we find that thesensitivity of the best correlation for probing absorptive CP effects is almostindependent of the polarization degree.Comment: 12 pages LaTe

Probing Higgs boson — and supersymmetry-induced CP violation in top quark production by (un-) polarized electron-positron collisions