Lightest Visible-Sector Supersymmetric Particle is Likely to be Unstable.
Lightest Visible-Sector Supersymmetric Particle is Likely to be Unstable.
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最轻的可见扇区超对称粒子可能不稳定。
DOI：
10.1103/physrevlett.117.181802
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发表时间：
2016
影响因子：
8.6
通讯作者：
Acharya BS
中科院分区：
文献类型：
--
作者：
Acharya BS
我们认为，基于已知弦或理论解的典型性质，可见扇区中最轻的超对称粒子可能是不稳定的。换句话说，暗物质可能不是具有标准模型量子数的粒子，比如弱相互作用的大质量粒子。这个论点很简单，基于(a)隐藏扇区，(b)标准模型（可见）扇区与这些隐藏扇区之间的相互作用，以及(c)缺乏反对大质量中性隐藏扇区粒子比最轻的可见超对称粒子轻的论点。这些结论不依赖于诸如奇偶性违反之类的参数。
We argue, based on typical properties of known solutions of string ortheory, that the lightest supersymmetric particle of the visible sector is likely to be unstable. In other words, dark matter is probablynota particle with standard model quantum numbers, such as a weakly interacting massive particle. The argument is simple and based on the typical occurrence of (a) hidden sectors, (b) interactions between the standard model (visible) sector and these hidden sectors, and (c) the lack of an argument against massive neutral hidden sector particles being lighter than the lightest visible supersymmetric particle. These conclusions do not rely on arguments such as-parity violation.