标题： 大爆炸核合成与变化的精细结构常数和非标准膨胀率 显示英文标题

标题： Big bang nucleosynthesis with a varying fine structure constant and non-standard expansion rate

摘要： 我们计算在精细结构常数和/或宇宙膨胀率取非标准值时，大爆炸核合成期间产生的轻元素的原始丰度。 我们将它们与最近观测到的D、He4和Li7丰度进行比较，这些值在标准大爆炸核合成情景中彼此之间显示出轻微的不一致。 这种不一致通过单独考虑变化的精细结构常数或非标准膨胀率无法解决，但通过它们的同时存在找到了解决方案。 显示英文摘要

摘要： We calculate primordial abundances of light elements produced during big bang nucleosynthesis when the fine structure constant and/or the cosmic expansion rate take non-standard values. We compare them with the recent values of observed D, He4 and Li7 abundances, which show slight inconsistency among themselves in the standard big bang nucleosynthesis scenario. This inconsistency is not solved by considering either a varying fine structure constant or a non-standard expansion rate separately but solutions are found by their simultaneous existence.