INVESTIGADORES
AGUIRRE Ricardo Miguel
artículos
Título:
Collective modes in hadronic matter in a relativistic model with medium dependent couplings
Autor/es:
MIGUEL AGUIRRE, RICARDO
Revista:
PHYS. REV. - C
Editorial:
AMER PHYSICAL SOC
Referencias:
Año: 2001 vol. 63 p. 1 - 1
ISSN:
0556-2813
Resumen:
The propagation of the lightest mesons in hadronic matter is studied at finite temperature, by including Dirac sea effects. The meson-nucleon interaction is described in a field theory model, which exhibits a residual interaction beyond the ground state, with a medium dependent coupling constant. The effective meson masses, the low lying collective excitations of nuclear matter, and the giant isoscalar resonances of a system with finite particle number are studied and compared with other theoretical predictions. The effect of different regularization prescriptions is also considered