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arXiv 0908.2998hep-ph
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奇异夸克衰变的超对称重子生成

Supersymmetric Baryogenesis from Exotic Quark Decays

Timothy Cohen, Daniel J. Phalen, Aaron Pierce

摘要:

在最小超对称标准模型的一个简单扩展中,TeV尺度奇异矢量类方子的非平衡衰变可能产生宇宙的重子不对称性。超势中存在重子数和CP破坏,因此该机制不依赖于超对称破缺参数中的CP破坏。我们讨论的模型,以及潜在的信号,大型强子对撞机和电子偶极矩实验的唯象约束。TeV标度模型的一个变体允许奇异的正方形成为规范介导的超对称破缺的信使。

英文摘要:

In a simple extension of the minimal supersymmetric standard model, out-of-equilibrium decays of TeV scale exotic vector-like squarks may generate the baryon asymmetry of the universe. Baryon number and CP violation are present in the superpotential, so this mechanism does not rely on CP violation in supersymmetry breaking parameters. We discuss phenomenological constraints on the model as well as potential signals for the Large Hadron Collider and electronic dipole moment experiments. A variation on the TeV scale model allows the exotic squarks to be the messengers of gauge mediated supersymmetry breaking.

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