1. Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center “Kurchatov Institute” (NRC “Kurchatov Institute” - PNPI), 1 Orlova Roscha mcr., Gatchina 188300, Leningrad Region, Russia
2. Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
3. School of Physics, The University of New South Wales, Sydney NSW 2052, Australia
4. Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
5. Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland