Use of W-boson longitudinal–transverse interference in top quark spin-correlation functions: II C.A. Nelson, J.J. Berger and J.R. Wickman Eur. Phys. J. C, 46 2 (2006) 385-402 Published online: 14 March 2006 DOI: 10.1140/epjc/s2006-02481-2