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 the superstring inspired $E_{6}$ model motivated $U(1)_{N}$extension of the supersymmetric standard model to explore the possibility ofexplaining the recent excess CMS events and the baryon asymmetry of theuniverse in eight possible variants of the model. In light of the hints fromshort-baseline neutrino experiments at the existence of one or more lightsterile neutrinos, we also study the neutrino mass matrices dictated by thefield assignments and the discrete symmetries in these variants. We find thatall the variants can explain the excess CMS events via the exotic sleptondecay, while for a standard choice of the discrete symmetry four of thevariants have the feature of allowing high scale baryogenesis (leptogenesis).For one other variant three body decay induced soft baryogenesis mechanism ispossible which can induce baryon number violating neutron-antineutronoscillation. We also point out a new discrete symmetry which has the feature ofensuring proton stability and forbidding tree level flavor changing neutralcurrent processes while allowing for the possibility of high scale leptogenesisfor two of the variants. On the other hand, neutrino mass matrix of the$U(1)_{N}$ model variants naturally accommodates three active and two sterileneutrinos which acquire masses through their mixing with extra neutral fermionsgiving rise to interesting textures for neutrino masses.

Explaining the CMS excesses, baryogenesis and neutrino masses in $E_{6}$ motivated $U(1)_{N}$ model