Upgrade of the ALICE Experiment Letter Of Intent - Abelev, B; Carlin Filho, Nelson; Barros, Gabriel Oliveira Valeriano de; Deppman, Airton; Godoy, Denise Aparecida Moreira de; Figueredo, Marcel Araujo Silva; Munhoz, Marcelo Gameiro; Silva, Antonio Carlos Oliveira da; Oliveira Filho, Elienos Pereira de; Suaide, Alexandre Alarcon do Passo; Szanto de Toledo, Alejandro (Journal of Physica G: Nuclear and Particle Physics, 2014)