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nucl-th2026
Relaxation-Time Boltzmann Solutions Without Truncations
Tiago Nunes da Silva, Jadna L. Barauna, Giorgio Torrieri
The relaxation-time Boltzmann equation governs relativistic matter far from equilibrium, but existing approaches rely on finite-order truncations that break down in this regime. We…
nucl-th2026
ShARK: A Stochastic Transport Framework for the Relativistic Relaxation Time Approximation Boltzmann Equation
Tiago Nunes da Silva, Jadna L. Barauna, Giorgio Torrieri
We show that the Anderson-Witting relaxation-time approximation (relativistic Bhatnagar-Gross-Krook (BGK) equation) emerges as the limit of a stochastic -b…