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Conference Papers Year : 1999

Relativistic transport equations with generalized mass shell constraints

Abstract

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.

Dates and versions

in2p3-00087675 , version 1 (26-07-2006)

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L. Mornas, K. Morawetz. Relativistic transport equations with generalized mass shell constraints. International Workshop on Kadanoff-Baym Equations: Progress and Perspectives for Many-body Physics (KB 99), Sep 1999, Rostock, Germany. ⟨in2p3-00087675⟩
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