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

Flavor-changing neutral currents are not present in the Standard Model attree level and are suppressed in loop processes by the unitarity of theCabibbo-Kobayashi-Maskawa matrix; the corresponding rates for top quark decayprocesses are experimentally unobservable. Extensions of the Standard Model cangenerate new flavor-changing neutral current processes, leading to signalswhich, if observed, would be unambiguous evidence of new interactions. Adataset corresponding to an integrated luminosity of 36.1 fb$^{-1}$ of $pp$collisions at a center-of-mass energy of $\sqrt{s}=$ 13 TeV recorded with theATLAS detector at the Large Hadron Collider is used to search for top quarksdecaying to up or charm quarks with the emission of a Higgs boson, withsubsequent Higgs boson decay to final states with at least one electron ormuon. No signal is observed and limits on the branching fractions$\mathcal{B}(t \to Hc) <$ 0.16% and $\mathcal{B}(t \to H u) <$ 0.19% at 95%confidence level are obtained (with expected limits of 0.15% in both cases).

physical review. d/physical review. d.

Search for flavor-changing neutral currents in top quark decays $t\to  Hc$ and $t \to Hu$ in multilepton final states in proton-proton collisions at  $\sqrt{s}= 13$ TeV with the ATLAS detector