Finite Temperature effects on baryon transport scattering in the early Universe

Details Finite Temperature effects on baryon transport scattering in the early Universe Finite Temperature effects on baryon transport scattering in the early Universe

1998-04-08

arxiv.org/abs/astro-ph/9804090v1

Phys.Rev. D58 (1998) 025001

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.58.025001

We have computed finite temperature corrections to the electron-hadron scattering cross sections. These are based upon the renormalized electron mass and the modified density of states due to the presence of a background thermal bath. It is found that the electron-hadron thermal transport scattering cross section can be much larger than the zero temperature one. In the case of electron-neutron transport scattering, we find \sigma_{ne}(T) / \sigma_{ne} (T=0) \simeq 5 at T \simeq 0.1 MeV.

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