ϒ production in d+Au collisions at STAR

We present the analysis of ϒ→e+e− production in d+Au collisions at from the STAR experiment. Using higher level dedicated ϒ triggers, STAR has sampled 32 nb−1 of integrated luminosity in year 2008 d+Au run. The cross section is found as and it is consistent with NLO CEM prediction with anti-shadowing effects. In addition we calculated the nuclear modification factor RdAu=0.98±0.32(stat.)±0.28(sys.), which suggests the ϒ(1S+2S+3S) production follows Nbin scaling.