2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48733We investigate the physics of elementary excitations for the so called relativistic scalar plasma system. Following the standard many-body procedure we have obtained the RPA equations for this model by linearizing the TDHFB equations of motion around equilibrium and shown that these oscillation modes give one-meson and two-fermion state of the theory. The resulting equations have a closed solution, from which one can examinate the spectrum of excitation modes. In partticular, our results indicate existence of bound state for certain region of phase diagram.17 pages, LaTex file, two figuresHigh Energy Physics - Phenomenologytext