Backreaction effects of dissipation in neutrino decoupling

Details Backreaction effects of dissipation in neutrino decoupling Backreaction effects of dissipation in neutrino decoupling

1999-01-15

arxiv.org/abs/astro-ph/9901211v2

Gen.Rel.Grav. 32 (2000) 1711

Astronomy and Astrophysics

Astrophysics

Version accepted by Gen. Rel. Grav

Scientific paper

Dissipative effects during neutrino decoupling in the early universe create a
small backreaction on the Hubble rate, and lead to a small rise in temperature
and entropy. We use a simplified thermo-hydrodynamic model, which provides a
causal approximation to kinetic theory, in order to estimate the backreaction
effects and the entropy production.

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