| Affiliation: | 1. From the Department of Materials Science, University of Salento, Lecce (RC, AA, GDN);2. Istituto Nazionale di Fisica Nucleare, Lecce (RC, AA, GDN, AC, IDM, MF, MQ);3. Department of Physics, University of Salento, Lecce (AC, IDM, MF);4. Department of Mathematics, University of Salento, Lecce (MQ);5. Department of Physics, University of Bari (LM);6. Istituto Nazionale di Fisica Nucleare, Bari (LM);7. Department of Physics, University of Genova, Genova (LR);8. Istituto Nazionale di Fisica Nucleare, Genova (LR);9. Department of Physics, University of Torino, Torino (EF);10. and Istituto Nazionale di Fisica Nucleare, Torino (EF). |
