论文标题
在SE $ _6 $ SSM中抑制暗物质 - 核子散射横截面
On the Suppression of the Dark Matter-Nucleon Scattering Cross Section in the SE$_6$SSM
论文作者
论文摘要
在E6中，最小超对称（SUSY）标准模型（MSSM）的$ U（1）_n $扩展是单个离散的$ \ tilde {z}^{h}^{h} _2 $对称性允许抑制快速的质子衰减和非脱糖类风味过渡。如果物质奇偶校验和$ \ tilde {z}^{h} _2 $对称保留了该SUSY模型（SE4-6 $ SSM），则可能涉及两个候选暗物质。在本文中，我们研究了SE6SSM的新修饰，其中冷暗物质由Gravitino和最轻的中性外来式费米亚组成。我们认为，在这种情况下，暗物质核子散射横截面可能比目前的实验极限要小得多。
In the E6 inspired $U(1)_N$ extension of the minimal supersymmetric (SUSY) standard model (MSSM) a single discrete $\tilde{Z}^{H}_2$ symmetry permits suppressing rapid proton decay and non-diagonal flavour transitions. If matter parity and $\tilde{Z}^{H}_2$ symmetry are preserved this SUSY model (SE4-6$SSM) may involve two dark matter candidates. In this article we study a new modification of the SE6SSM in which the cold dark matter is composed of gravitino and the lightest neutral exotic fermion. We argue that in this case the dark matter-nucleon scattering cross section can be considerably smaller than the present experimental limit.
