Changes in dark matter properties after freeze-out
Changes in dark matter properties after freeze-out
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DOI：
10.1103/physrevd.78.111701
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发表时间：
2008-08
影响因子：
5
通讯作者：
T. Cohen;D. Morrissey;A. Pierce
中科院分区：
文献类型：
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作者：
T. Cohen;D. Morrissey;A. Pierce
决定其热遗迹丰度的暗物质的性质可能与今天的暗物质性质非常不同。我们通过将暗物质扇区耦合到在暗物质冻结后经历相变的标量来研究这种可能性。如果从对撞机测量的参数以及直接和间接探测实验计算出的{omega}{sub DM}h{sup 2}值与天体物理学观测值不匹配，这种类型的新宇宙学可以提供解释。
The properties of the dark matter that determine its thermal relic abundance can be very different from the dark matter properties today. We investigate this possibility by coupling a dark matter sector to a scalar that undergoes a phase transition after the dark matter freezes out. If the value of {omega}{sub DM}h{sup 2} calculated from parameters measured at colliders and by direct and indirect detection experiments does not match the astrophysically observed value, a novel cosmology of this type could provide the explanation.