Discovery of the Higgs Boson and a Search for Beyond the Standard Model Physics in ZZ Decays using the CMS Detector at the LHC

A study of the $pp \rightarrow ZZ \rightarrow \ell\ell\ell\ell$ final state is conducted using 19.6$fb^{-1}$ of 8 TeV proton-proton collisions at the LHC using the CMS detector. The Standard Model $pp \rightarrow ZZ$ production cross section is measured to be $\sigma(pp\rightarrow ZZ) = 7.7^{+0.5}_{-0.5} \textrm(stat.) ^{+0.6}_{-0.5} \textrm{(sys.)} \pm 0.3 \textrm{(lumi)}~\textrm{pb} $. Evidence of a new Higgs-like boson is observed with a significance of $6.1 \sigma$ at 126~GeV. 95% confidence level upper limits are set on the neutral anomalous triple gauge\ncouplings; $-0.004 < f_4^Z < 0.004$, $-0.005 < f_4^{\gamma} < 0.005$, $-0.004 < f_5^Z < 0.004$, and $-0.005 < f_5^{\gamma} < 0.005$.