Affiliation: | a Budker Institute of Nuclear Physics, Academician Lavrentyev 11, 630090 Novosibirsk 90, Russia b Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007, Katowice, Poland c Institute of Nuclear Physics, Kawiory 26a, 30-055 Cracow, Poland d CERN, Theory Division, 1211 Geneva 23, Switzerland |