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arXiv 0907.1894hep-ph
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作为大统一信号的暗物质

Dark Matter as the signal of Grand Unification

Mario Kadastik, Kristjan Kannike, Martti Raidal

备注：
DM direct detection cross section is corrected by adding s-quark contribution which turned out to be the dominant one. The prediction is just below the present CDMS and XENON10 bound. Extended version, RGE-s included, new references added
发表信息：
Phys.Rev.D80:085020,2009; Erratum-ibid.D81:029903,2010
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摘要：

我们认为，暗物质（DM）的存在是一个可能的结果，大统一理论对称性破缺。在SO（10）这样的大统一理论中，尽管B-L被破坏，离散的Z_2物质宇称（-1）^{3（B-L）}仍然存在，并且群论唯一地确定了唯一可能的Z_2奇物质多重态属于表示16。我们构造了DM的包含一个标量16的最小非超对称SO（10）模型，并研究了它在M_{G}以下的预测。我们发现，EWSB发生辐射由于DM耦合到SM希格斯玻色子。对于热遗迹DM，由模型微扰度预测了质量范围为M_{DM} \sim（0.1-1）TeV，最高可达M_{G}。对于用M_{DM} \sim（1）TeV解释观测到的DM衰变的宇宙线异常，在计划的实验范围内，自旋无关的直接探测截面存在一个下限。

英文摘要：

We argue that the existence of Dark Matter (DM) is a possible consequence of GUT symmetry breaking. In GUTs like SO(10), discrete Z_2 matter parity (-1)^{3(B-L)} survives despite of broken B-L, and group theory uniquely determines that the only possible Z_2-odd matter multiplets belong to representation 16. We construct the minimal non-SUSY SO(10) model containing one scalar 16 for DM and study its predictions below M_{G}. We find that EWSB occurs radiatively due to DM couplings to the SM Higgs boson. For thermal relic DM the mass range M_{DM}\sim (0.1-1) TeV is predicted by model perturbativity up to M_{G}. For M_{DM}\sim (1) TeV to explain the observed cosmic ray anomalies with DM decays, there exists a lower bound on the spin-independent direct detection cross section within the reach of planned experiments.

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