arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1108.0482hep-ph
收藏

暗物质、轻子生成和中微子质量的共同框架

A Common Framework for Dark Matter, Leptogenesis and Neutrino Masses

François-Xavier Josse-Michaux, Emiliano Molinaro

摘要:

我们研究了标准模型的一个跷跷板型扩展,其中对称群被整体U(1)扩大。我们引入适当的标量和费米子表示自然解释中微子质量的小。随着一个可行的标量暗物质候选者的加入,一个最初的稀薄起源的场景出现了。我们解决了相关的玻尔兹曼方程组,并显示如何leptogenesis可以成功地实现在TeV规模。推导了标量质量谱的约束条件,并讨论了暗物质现象。

英文摘要:

We study a seesaw-type extension of the Standard Model in which the symmetry group is enlarged by a global U(1). We introduce adequate scalar and fermion representations which naturally explain the smallness of neutrino masses. With the addition of a viable scalar Dark Matter candidate, an original scenario of leptogenesis emerges. We solve the relevant set of Boltzmann equations and show how leptogenesis can be successfully implemented at the TeV scale. The constraints on the scalar mass spectrum are derived and the Dark Matter phenomenology is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑