Effects of the large gluon polarization on $x{g}_1^d(x)$ and J/$\psi$ productions at polarized ep and pp collisions

T. Morii, S. Tanaka, T. Yamanishi

The recent SMC data of $x{g}_1^d(x)$ are reproduced with the large polarized gluons. To study further the polarized gluon distribution in a proton, we calculate the spin--dependent d…