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Relativistic Transport Theory for Systems Containing Bound States

Abstract : Using a Lagrangian which contains quarks as elementary degrees of freedom and mesons as bound states, a transport formalism is developed, which allows for a dynamical transition from a quark plasma to a state, where quarks are bound into hadrons. Simultaneous transport equations for both particle species are derived in a systematic and consistent fashion. For the mesons a formalism is used which introduces off-shell corrections to the off-diagonal Green functions. It is shown that these off-shell corrections lead to the appearance of elastic quark scattering processes in the collision integral. The interference of the processes $q\bar q\to\pi$ and $q\bar q\to\pi\to q\bar q$ leads to a modification of the $s$-channel amplitude of quark-antiquark scattering.
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http://hal.in2p3.fr/in2p3-00130927
Contributor : Dominique Girod <>
Submitted on : Wednesday, February 14, 2007 - 2:20:00 PM
Last modification on : Friday, June 22, 2018 - 9:33:10 AM

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P. Rehberg. Relativistic Transport Theory for Systems Containing Bound States. Physical Review C, American Physical Society, 1998, 57, pp.3299-3313. ⟨in2p3-00130927⟩

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