1. National Research Centre “Kurchatov Institute”, 1 Kurchatov sq., 123098 Moscow, Russia
2. Institute for Nuclear Problems of Belarus State University, 11 Bobruiskaya, 220030 Minsk, Belarus
3. Skobeltsyn Institute for Nuclear Physics, Lomonosov Moscow State University 1(2), Leninskie Gory, GSP-1, 119991 Moscow, Russia