Spin and parity determination of 125 GeV particle with the CMS detector

We present results of studies aiming to establish the spin--parity quantum numbers of the newly discovered boson with a mass near 125 GeV. The final states exploited in these studies are ZZ($4\ell$), WW($2\ell2\nu$), and $\gamma\gamma$. The dataset used in the analyses corresponds to integrated luminosities of 19.6 and 5.1 fb$^{-1}$ collected in pp collisions at 8 and 7 TeV, respectively. The hypotheses excluded at 95\% CL or higher are pseudoscalar, vector, pseudovector, and massive graviton-like spin-2 tensor. The latter model is studied in assumptions of either gluon--gluon or quark--antiquark production mechanisms. The limit on the fractional presence of a pseudoscalar component is $\sigma(0-) / [\sigma(0+) + \sigma(0-)] < 0.58\%$ at 95\% CL.