Search for new phenomena in the Z(->ll) + E^T_miss final state at √ s = 13 TeV with the ATLAS detector
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Asia/Shanghai
A419 (IHEP)
A419
IHEP
Description
This presentation will show a search for new phenomena in Z(->ll) + Emiss
has been performed using 13.3 fb−1 p-p collision data collected by the ATLAS
detector in 2015 and first half of 2016. The results was published in ICHEP
2016. Three models were considered in the analysis: (a) Higgs boson invisible
decay in ZH(Z ->ll ) mode; (b) Dark Matter particles produced in association
with leptonically decaying Z boson; (c) heavy resonance decaying to ZZ(->vv) final state. The analysis was optimized for each model to obtain the best
sensitivity. This analysis looks for an excess over the Standard Model predictions
in E^T_miss or ZZ transverse mass distribution depending on model. Results show
that data are compatible with the Standard Model expections. The 95% CL
limits on model parameters were derived.