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

Direct searches for lepton flavor violation in decays of the $Z$ boson withthe ATLAS detector at the LHC are presented. Decays of the $Z$ boson into anelectron or a muon and a hadronically decaying $\tau$ lepton are considered.The searches are based on a data sample of proton-proton collisions collectedby the ATLAS detector in 2015 and 2016, corresponding to an integratedluminosity of 36.1 fb$^{-1}$ at a center-of-mass energy of $\sqrt{s} = 13$ TeV.No significant excess of events above the expected background is observed, andupper limits on the branching ratios of lepton-flavor-violating decays are setat the 95% confidence level: $\mathcal{B} (Z\to e\tau) < 5.8 \times 10^{-5}$and $\mathcal{B} (Z\to \mu\tau) < 2.4 \times 10^{-5}$. This is the first limiton $\mathcal{B} (Z\to e\tau)$ with ATLAS data. The upper limit on $\mathcal{B}(Z\to \mu\tau)$ is combined with a previous ATLAS result based on 20.3fb$^{-1}$ of proton-proton collision data at a center-of-mass energy of$\sqrt{s} = 8$ TeV and the combined upper limit at 95% confidence level is$\mathcal{B} (Z\to \mu\tau) < 1.3 \times 10^{-5}$.

Search for lepton-flavor-violating decays of the $Z$ boson into a $\tau$ lepton and a light lepton with the ATLAS detector