Calzetta, E.Peralta-Ramos, J. [UNESP]2013-09-302014-05-202013-09-302014-05-202010-11-10Physical Review D. College Pk: Amer Physical Soc, v. 82, n. 10, p. 9, 2010.1550-7998http://hdl.handle.net/11449/24535We use the entropy production variational method to associate a one-particle distribution function to the assumed known energy-momentum and entropy currents describing a relativistic conformal fluid. Assuming a simple form for the collision operator we find this one-particle distribution function explicitly, and show that this method of linking the hydro and kinetic descriptions is a nontrivial generalization of Grad's ansatz. The resulting constitutive relations are the same as in the conformal dissipative type theories discussed by J. Peralta-Ramos and E. Calzetta [Phys. Rev. D 80, 126002 (2009)]. Our results may prove useful in the description of freeze-out in ultrarelativistic heavy-ion collisions.9engArtigo10.1103/PhysRevD.82.106003WOS:000284049800012Acesso abertoWOS000284049800012.pdf