Quasi-elastic processes of the 'ANTPOT. 48'CA' + 'ANTPOT. 120'SN' system and the 'ANTPOT. 48'CA' nuclear matter density - Crema, Edilson; Fernandez, B.; Abou-Haidar, Z.; Huiza, J. F. P.; Faria, P. N. de; Gomes, P. R. S; Lubian, J.; Verney, D.; Alvarez, Marcos Aurelio Gonzalez; Medina, Nilberto Heder; Gasques, Leandro Romero (PHYSICAL REVIEW C, 2013)