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 Plus

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

Zendy Tools

Zendy Open

In the context of a nonuniversal and anomaly free $U(1)_{X}$ extension of thestandard model, we examine the decay of a $750$GeV scalar singlet state,$\xi_{\chi}$, as a possible explanation of the observed diphoton excessannounced by the ATLAS and CMS collaborations at CERN-LHC collider. One-loopdecay to photons is allowed through three heavy singlet quarks and one chargedHiggs boson into the loop. We obtain, for different width approximations andfor masses of the exotic singlet quarks in the region $[900,\,3000]$ GeV, aproduction cross section $\sigma(pp\to\xi_{\chi}\to\gamma\gamma)$ compatiblewith ATLAS and CMS collaborations data. We also include another scalar singlet,$\sigma$, as a dark matter candidate that may couple with the 750 GeV scalar attree level with production cross sections in agreement with ATLAS and CMS.

Diphoton decay for a $750$ GeV scalar boson in an $U(1)_{X}$ model