Polarization dependence of optical suppression in photoassociative ionization collisions in a sodium magneto-optic trap - Zílio, Sérgio Carlos; Marcassa, Luís Gustavo; Muniz, Sérgio Ricardo; Horowicz, Ricardo Josué; Bagnato, Vanderlei Salvador; Napolitano, Reginaldo de Jesus; Weiner, J; Julienne, P S (Physical Review Letters, 1996)