Search of Higgs boson in H $\rightarrow$ ZZ $\rightarrow$ $l^{+}l^{-} \tau^{+} \tau^{-}$ final state

A search for the Standard Model Higgs boson in decay mode H $\rightarrow$ ZZ $\rightarrow$ $l^{+}l^{-} \tau^{+} \tau^{-}$ where $l$ = $\mu$, $e$ is presented based on CMS data corresponding to an integrated luminosity of $\sim$ 25 $fb^{-1}$ (data taken during 2011,2012 run of LHC). Hadronic and leptonic decays of $\tau$ are inspected, giving in total eight final states which include all lepton flavours: $e$, $\mu$ and $\tau$. No evidence is found for a significant deviation from standard model expectations anywhere in the ZZ mass range considered in this analysis. An interpretation of the results in terms of an upper limit on the production cross-section $\times$ branching ratio for a Higgs boson decaying with standard model couplings is presented.