Introduction In the last 30 years we have made great progress both ...
Introduction In the last 30 years we have made great progress both ...
Introduction In the last 30 years we have made great progress both ...
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We define abundance Y=N/s to remove H*N termTime evolution can be transformed into <strong>the</strong>rmal oneForNumerical estimationsUntil Yeq(T)* γ (T) >>1 <strong>we</strong> <strong>have</strong> chemical equilibrium Y(T)==Y eq (T)31