NEW DETREMINATION METHOD OF PRIMORDIAL Li ABUNDANCE
نویسنده
چکیده
We discuss the primordial nucleosynthesis in lepton asymmetric Universe models. In order to better estimate the universal baryonmass density parameter Ωb, we try to remove the uncertainty from the theoretical prediction of primordial Li abundance. We propose a new method to determine the primordial Li by the use of isotopic abundance ratio Li/Li in the interstellar medium which exhibits the minimum effects of the stellar processes.
منابع مشابه
Primordial Lithium and Big Bang Nucleosynthesis.
Recent determinations of the abundance of the light-element Li in very metal-poor stars show that its intrinsic dispersion is essentially zero and that the random error in the estimated mean Li abundance is negligible. However, a decreasing trend in the Li abundance toward lower metallicity indicates that the primordial abundance of Li can be inferred only after allowing for nucleosynthesis pro...
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