1. Research Institute for Interdisciplinary Science
2. Okayama University
3. Okayama 700-8530
4. Japan
5. Dipartimento di Fisica
6. Sapienza Universitá di Roma
7. 00185 Roma
8. Italy
9. Department of Physics
10. The Graduate School of Natural Science and Technology
11. IOM-CNR
12. Laboratorio TASC
13. Trieste
14. Elettra-Sincrotrone Trieste