1. Department of Mathematics and Physical Science, College of Arts and Science, University of Nizwa, Nizwa 616, Oman
2. Department of Physics, National Defence Academy, Khadakwasla, Pune 411023, India
3. Astrophysics Research Centre, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
4. Laboratory of High Energy Physics and Condensed Matter, Department of Physics, Faculty of Sciences Aín Chock, Hassan II University of Casablanca, B.P. 5366 Maarif, Casablanca 20100, Morocco