Mahnaz Q. Haseeb, Omair Sarfaraz
Abundances of light nuclei formed during primordial nucleosynthesis are
theoretically well predicted by Standard Big Bang Model. These predictions have
been compared with the latest data from WMAP with precisions higher than ever
before. Therefore, an even more sharpened refinement in theoretical estimates
is required through all possible approaches. We evaluate corrections to the
change in helium abundance parameter during primordial nucleosynthesis using
finite temperature corrections up to two loop level, for the first time. The
values estimated are in measurable ranges of present and future observational
probes.
View original:
http://arxiv.org/abs/1111.0248
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