Sg. Mashnik et al., COMPARISON OF 2 FORMS OF VLASOV-TYPE RELATIVISTIC KINETIC-EQUATIONS IN HADRODYNAMICS, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 109(12), 1996, pp. 1699-1708
A comparison of two methods in the relativistic kinetic theory of the
Fermi systems is carried out by assuming, as an example, the simplest
sigma omega-version of quantum hadrodynamics with allowance for strong
mean meson fields. It is shown that the Vlasov-type relativistic kine
tic equation (VRKE) obtained by means of the procedure of squaring at
an intermediate step is responsible for unphysical features. A direct
method of derivation of kinetic equations is proposed. This method doe
s not contain such drawback and gives rise to VRKE in hadrodynamics of
a non-contradictory form in which both spin degrees of freedom and st
ates with positive and negative energies are taken into account.