论文标题
不对称的暗物质丰度包括非热生产
Asymmetric Dark Matter Abundance Including Non-thermal production
论文作者
论文摘要
我们研究了不对称暗物质的遗物丰度，在这些暗物质中，除了通常的热产生外，不对称的暗物质是非对称的，这是由于较重颗粒的衰减而产生的。我们讨论了不对称暗物质的遗物密度，包括在低温场景中重颗粒的衰减。在这里，我们仍然假设宇宙是辐射主导的，并且在重颗粒衰减之前存在不对称性。当较重颗粒的衰减中有其他贡献时，我们获得了不对称暗物质的丰富性。最后，我们使用Planck数据找到了对不对称因子和歼灭横截面的约束。
We investigate the relic abundance of asymmetric Dark Matter where the asymmetric Dark Matter is non--thermally produced from the decay of heavier particles in addition to the usual thermal production. We discuss the relic density of asymmetric Dark Matter including the decay of heavy particles in low temperature scenario. Here we still assume the universe is radiation dominated and there is asymmetry before the decay of heavy particles. We obtained increased abundances of asymmetric Dark Matter when there is additional contribution from the decay of heavier particles. Finally we find the constraints on the asymmetry factor and annihilation cross section using the Planck data.
