1. Department of Physics, Faculty of Sciences, University of Douala, P. O. Box 24157, Douala, Cameroon
2. Faculty of Science, University of Maroua, P. O. Box 814, Maroua, Cameroon
3. Department of Physical Foundation of Engineering, University Politechnica of Timisoara, 300223, Timisoara, Romania
4. Physics Faculty, West University of Timisoara, 300223,Timisoara, Romania
5. LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, 92190, Meudon, France
6. LOMC CNRS-UMR6294, Université le Havre Normandie, F-76058 Le Havre, France
7. LAC CNRS-FRE2038, Université Paris-Saclay, F-91405 Orsay, France
8. Institute for Nuclear Research (ATOMKI), H-4001 Debrecen, Hungary