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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

We consider supersymmetric extensions of the standard model in which theusual $R$ or matter parity gets replaced by another $R$ or non-$R$ discretesymmetry that explains the observed longevity of the nucleon and solves the$\mu$ problem of MSSM. In order to identify suitable symmetries, we develop anovel method of deriving the maximal $\mathbb{Z}_{N}^{(R)}$ symmetry thatsatisfies a given set of constraints. We identify $R$ parity violating (RPV)and conserving models that are consistent with precision gauge unification andalso comment on their compatibility with a unified gauge symmetry such as thePati-Salam group. Finally, we provide a counter-example to the statement foundin the recent literature that the lepton number violating RPV scenarios musthave $\mu$ term and the bilinear $\kappa \, L \, H_u$ operator of comparablemagnitude.

$R$ parity violation from discrete $R$ symmetries