Actress Jane Fonda and her husband of 16 years, California Assemblyman Tom Hayden, have separated, a spokesman for the couple said Wednesday. "Tom Hayden and Jane Fonda have decided to separate on a trial basis," said Stephen Rivers, a longtime spokesman for the couple. "Tom and Jane consider this separation a private matter and will have no public comment or statement on it." Fonda and Hayden, one of the radicals tried in the Chicago Seven case, were married in January 1973 and have two children.