论文标题
TEV尺度的综合发生
TeV-scale Majorogenesis
论文作者
论文摘要
Majoron是Lepton数字对称的Nambu-Goldstone Boson，是暗物质的有趣候选者，因为它将暗物质和中微子物理学深深地连接起来。在本文中，我们将Majoron暗物质视为带有TEV尺度质量的伪nambu-goldstone玻色子。重的马龙通常具有较大的衰减常数和微小的Yukawa耦合，可触发右手中微子，这是宇宙学和天体物理学所要求的。这使得很难意识到Maporon暗物质的所需数量。我们考虑了在早期宇宙中生成Maparon的三种改进的情景，称为综合发生，并在所有情况下都发现了与遗物丰度和宇宙射线约束兼容的参数空间。
The Majoron, the Nambu-Goldstone boson of lepton number symmetry, is an interesting candidate for dark matter as it deeply connects the dark matter and neutrino physics. In this paper, we consider the Majoron dark matter as pseudo Nambu-Goldstone boson with TeV-scale mass. The heavy Majoron generally has the large decay constant and tiny Yukawa couplings to light right-handed neutrinos which are required by cosmological and astrophysical observations. That makes it difficult to realize the desired amount of the relic abundance of Majoron dark matter. We consider three improved scenarios for the generation of Majoron, dubbed as Majorogenesis, in the early universe and find in all cases the parameter space compatible with the relic abundance and cosmic-ray constraints.
