Finite temperature effects on cosmological baryon diffusion and inhomogeneous Big-Bang nucleosynthesis
نویسندگان
چکیده
We have studied finite temperature corrections to the baryon transport cross sections and diffusion coefficients. These corrections are based upon recently computed renormalized electron mass and modified density of states due to the background thermal bath. It is found that the optimum nucleosynthesis yields computed using our diffusion coefficients shift to longer distance scales by a factor of about 3. We also found that the minimum value of He abundance decreases by ∆Yp ' 0.01. Effects of these results on constraints from primordial nucleosynthesis are discussed.
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