In this study we review the cold dark matter problem in the context of a class of models which are a simple extension of the electroweak standard model, where the gauge symmetry is dictated by the group structure, SU(3)ca??SU(3)La??U(1)X. This model, in d
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机译：在这项研究中，我们在一类模型的背景下回顾了冷暗物质问题，这些模型是电弱标准模型的简单扩展，其中规范对称性由组结构SU（3）ca ?? SU（3 La ?? U（1）X。 d中的此模型
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