论文标题
Z boson在de Sitter中的中微子扩展
Z boson emission by a neutrino in de Sitter expanding universe
论文作者
论文摘要
通过使用扰动方法研究了中微子在扩展的DE Sitter宇宙中通过中微子在排放过程中的产生。通过分析计算中微子自发发射Z玻色子的总概率和过渡速率，然后我们根据扩展参数进行图形分析。我们的结果证明，仅在早期宇宙的大扩张条件下才有可能此过程。最后，定义了Z实量的密度数，并根据中微子的密度数量获得了该数量的定量估计。
Production of Z bosons in emission processes by neutrinos in the expanding de Sitter universe is studied by using perturbative methods. The total probability and transition rate for the spontaneous emission of a Z boson by a neutrino is computed analytically, then we perform a graphical analysis in terms of the expansion parameter. Our results prove that this process is possible only for large expansion conditions of the early Universe. Finally the density number of Z bosons is defined and we obtain a quantitative estimation of this quantity in terms of the density number of neutrinos.
