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arXiv 1503.08749hep-phastro-ph.COhep-th
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偶然的复合暗物质

Accidental Composite Dark Matter

Oleg Antipin, Michele Redi, Alessandro Strumia, Elena Vigiani

摘要:

我们建立的模型中,暗物质候选人出现的复合状态的一个新的限制规范力,稳定由于偶然的对称性。限制到与SU(5)统一相容的可重整化理论,我们发现13个基于SU(N)规范理论的模型和9个基于SO(N)的模型。我们还描述了其他模型,需要nonrenormalizable相互作用。这两个规范群导致了独特的现象:SU(N)理论给出了复杂的DM,具有潜在的可观察的电和磁偶极矩,导致特殊的自旋无关截面; SO(N)理论给出了真正的DM,具有挑战性的自旋相关截面或非弹性散射。具有汤川耦合的模型也产生了由希格斯玻色子介导的与自旋无关的直接探测和电子的电偶极矩。每个模型都预测了一组特定的更轻的复合标量,可能在对撞机上观察到。

英文摘要:

We build models where Dark Matter candidates arise as composite states of a new confining gauge force, stable thanks to accidental symmetries. Restricting to renormalizable theories compatible with SU(5) unification, we find 13 models based on SU(N) gauge theories and 9 based on SO(N). We also describe other models that require non-renormalizable interactions. The two gauge groups lead to distinctive phenomenologies: SU(N) theories give complex DM, with potentially observable electric and magnetic dipole moments that lead to peculiar spin-independent cross sections; SO(N) theories give real DM, with challenging spin-dependent cross sections or inelastic scatterings. Models with Yukawa couplings also give rise to spin-independent direct detection mediated by the Higgs boson and to electric dipole moments for the electron. In some models DM has higher spin. Each model predicts a specific set of lighter composite scalars, possibly observable at colliders.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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