1. National Centre for Physics of Particles and High Energies of Belarusian State University, 220040 Minsk, Belarus
2. Belarusian State University, 220030 Minsk, Belarus
3. Al Balqa Applied University, Physics Department, P.O. Box 4545, Amman 11953, Jordan
4. Lublin University of Technology, Nadbystrzycka 38d, 20-618 Lublin, Poland
5. Zilina University, 010 26 Žilina, Slovakia
6. Joint Institute for Nuclear Research, Dubna, Russia