3 papers
nucl-th2007★ 2 cited
Center-of-Mass Correction in a Relativistic Hartree Approximation Including the Meson Degrees of Freedom
P. Alberto, S. S. Avancini, M. Fiolhais +1
The Peierls-Yoccoz projection method is used to study the motion of a relativistic system of nucleons interacting with sigma and omega mesons. The nuclear system is described in a…
nucl-th2007★ 50 cited
Spin and pseudospin symmetries and the equivalent spectra of relativistic spin-1/2 and spin-0 particles
P. Alberto, A. S. de Castro, M. Malheiro
We show that the conditions which originate the spin and pseudospin symmetries in the Dirac equation are the same that produce equivalent energy spectra of relativistic spin-1/2 an…
hep-ph2001
Excitation of non-quark degrees of freedom in N*
B. Golli, P. Alberto, M. Fiolhais
We study the contribution of glueball and sigma-meson degrees of freedom to nucleon excited states in the framework of a chiral version of the chromodielectric model. We have found…