where $\chi_{\rm SN}^2$, $\chi_{\rm CMB}^2$ and $\chi_{\rm LSS}^2$ are contributions from SNe Ia, CMB, and LSS data, respectively. It is well known that the acceleration of the Universe is found by the Type Ia supernovae observations, where the concept of the luminosity distance plays a very important role. The luminosity distance of a light source is defined in such a way as to generalize to an expanding and curved space the inverse-square law of brightness valid in a static Euclidean space, $$d_L=\left({{\cal L}\over 4\pi{\cal
F}}\right)^{1/2}=cH_0^{-1}(1+z)\int_0^z{dz'\over E(z')}~,$$ where ${\cal L}$ is the absolute luminosity which is a known value for the standard candle SNe Ia, $\cal F$ is the measured flux. The Hubble distance $cH_0^{-1}=2997.9h^{-1}$ Mpc. The Type Ia supernova observations directly measure the apparent magnitude $m$ of a supernova and its red-shift $z$. The apparent magnitude $m$ is related to the luminosity distance $d_L$ of the supernova through $$m(z)=M+5\log_{10}(d_L(z)/{\rm Mpc})+25~,$$ where $M$ is the absolute magnitude which is believed to be constant for all Type Ia supernovae. In our analysis, we take the 157 gold data points listed in Riess et al. [@Riess] which includes recent new 14 high redshift SNe (gold) data from the HST/GOODS program. The $\chi^2$ function 