Possible evidence for a change in cosmic equation of state at decoupling
Gonzalo, J. A. · Marques, M. I.
Original · EN
Indirect but significative evidence (from fusion research data, and from the known 4He abundance) relevant to primordial nucleosynthesis is examined. It is shown that this evidence supports a change in cosmic equation of state at decoupling, compatible with Einstein's cosmological equations, from ROm T⁴ aprox. cte (ROm=ROr) prior to decoupling (t<taf), to ROmT³ aprox. cte after (t>taf), being taf the atom formation time. Implications at the baryon threshold time (temperature) and beyond are discussed.
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