Artículos de revistas
Hadronic matter under an external magnetic field: In-medium modification of the pion mass
Fecha
2017-04Registro en:
Aguirre, Ricardo Miguel; Hadronic matter under an external magnetic field: In-medium modification of the pion mass; American Physical Society; Physical Review D; 95; 7; 4-2017; 0621301-0621309
2470-0029
CONICET Digital
CONICET
Autor
Aguirre, Ricardo Miguel
Resumen
The covariant propagator of a fermion with intrinsic magnetic moment interacting with a uniform external magnetic field is presented for finite temperature and baryonic density. The case of a scalar boson is also considered. The final expressions are given in terms of a four-dimensional momentum representation. These results, which take account of the full effect of the magnetic field, are used to evaluate the modification of the pion mass at zero temperature as a function of the density and the magnetic intensity. For this purpose a self-consistent calculation, including one- and two-pion vertices, is employed.