Finite Temperature effects on baryon transport scattering in the early Universe

Abstract

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 σ_{ne}(T) / σ_{ne} (T=0) \simeq 5 at T \simeq 0.1 MeV.

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

References in corpus (1)

• Finite temperature effects on the neutrino decoupling in the early Universe

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