Novel Relaxation Time Approximation to the Relativistic Boltzmann Equation

We show that the widely used relaxation time approximation to the relativistic Boltzmann equation contains basic flaws, being incompatible with micro- and macroscopic conservation laws if the relaxation time depends on energy or general matching conditions are applied. We propose a new approximation...

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Veröffentlicht in:	Physical review letters 2021-07, Vol.127 (4), p.1-042301, Article 042301
Hauptverfasser:	Rocha, Gabriel S., Denicol, Gabriel S., Noronha, Jorge
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Boltzmann transport equation Conservation laws Hydrodynamic models Mathematical analysis Particle diffusion Physical Sciences Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Physics, Multidisciplinary Quark-gluon plasma Relativistic effects Relativistic heavy-ion collisions Relativistic kinetic theory Relaxation time Science & Technology Transport properties
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