6533b85ffe1ef96bd12c1b1c
RESEARCH PRODUCT
Relativistic transport equations with generalized mass shell constraints
L. MornasKlaus Morawetzsubject
Physics[PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th]Spinor[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]Nuclear TheoryFOS: Physical sciencesFermionNuclear matterPolarization (waves)Nuclear Theory (nucl-th)Formalism (philosophy of mathematics)Classical mechanicsKinetic equationsNuclear theorydescription
We reexamine the derivation of relativistic transport equations for fermions when conserving the most general spinor structure of the interaction and Green function. Such an extension of the formalism is needed when dealing with {\it e.g.} spin-polarized nuclear matter or non-parity conserving interactions. It is shown that some earlier derivations can lead to an incomplete description of the evolution of the system even in the case of parity-conserving, spin-saturated systems. The concepts of kinetic equation and mass shell condition have to be extended, in particular both of them acquire a non trivial spinor structure which describe a rich polarization dynamics.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-01-01 |