A new approach to calculate the gluon polarization F. Taghavi-Shahri, A. Mirjalili and M.M. Yazdanpanah Eur. Phys. J. C, 71 3 (2011) 1590 Published online: 10 March 2011 DOI: 10.1140/epjc/s10052-011-1590-9