Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2017, Tutor: Domènec Espriu
In this work we place ourselves in the framework of an holographic approach to QCD. We study the mass spectra of a family of dilaton backgrounds more general than the usual solvable one in a Soft-Wall model. Taking a particular limit of this family we recover the mass spectra of the Hard-Wall model.