Measurement of heavy flavor properties at CMS

Measurements of lifetimes in the decay channels $B^0\to J/\psi K^*$, $B^0\to J/\psi K^0_s$, $B^0_s\to J/\psi \pi^+\pi^-$, $B^0_s\to J/\psi \phi$, $\Lambda^0_b\to J/\psi \Lambda^0$ and $B^+_c\to J/\psi \pi^+$ and polarization for $\Lambda_b$ in $\Lambda_b\to J/\psi \Lambda$ decays are presented. Data has been collected by Compact Muon Solenoid Experiment(CMS) in p-p collision at centre of mass energy at $\sqrt{s}=8$ TeV corresponding to an integrated luminosity of 19.7 fb$^{-1}$ for the former and $\sqrt{s}=7$ and 8 TeV corresponding to an integrated luminosity 5 fb$^{-1}$ and 19.7 fb$^{-1}$ respectively for the later. The measured values of lifetimes in $\mu $m are $c\tau_{B^0\to J/\psi K^*(892)^0}=453.0\pm 1.6$ (stat) $\pm 1.8$ (syst), $c\tau_{B^0\to J/\psi K^0_s}=457.8\pm 2.7$ (stat) $\pm 2.8$ (syst), $c\tau_{B^0_s\to J/\psi\phi}=443.9\pm 2.0(stat)\pm 1.5$ (syst), $c\tau_{B^0_s\to J/\psi\pi^+\pi^-}=502.7 \pm 10.2$ (stat) $\pm 3.4$ (syst), $c\tau_{\Lambda^0_b\to J/\psi\Lambda^0}=442.9 \pm 8.2$ (stat) $\pm 2.8$ (syst), $c\tau_{B^+_c\to J/\psi\pi^+}=162.3 \pm 7.8 \pm 4.2$ and the $\Lambda_b^0$ polarization $P=0.00 \pm 0.06 (stat) \pm 0.06(syst)$ along with asymmetry parameter $ \alpha_1=0.14 \pm 0.14$ (stat) $\pm 0.10$ (syst).