1. Laboratori Nazionali di Frascati, INFN, Via E. Fermi 54, 00044 Frascati (Roma), Italy
2. Stefan-Meyer-Institut für subatomare Physik, Kegelgasse 27, 1030 Vienna, Austria
3. Department of Physics, Faculty of Science, University of Zagreb, Bijenićka cesta 32, 1000 Zagreb, Croatia
4. Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), No. 30, Reactorului Street, 077125, Magurele, Romania
5. Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria and INFN Sezione di Milano, Via G. Ponzio 34, 20133 Milano, Italy
6. Physik Department E62, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
7. Institute of Physical and Chemical Research, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
8. Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
9. Center for Theranostics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
10. Research Center for Electron Photon Science (ELPH), Tohoku University, 1-2-1 Mikamine, Taihaku-ku, 982-0826 Sendai, Miyagi, Japan
11. Centro Studi e Ricerche Enrico Fermi-Museo Storico della fisica e Centro Studi e Ricerche ``Enrico Fermi'', Via Panisperna 89a, 00184 Roma, Italy