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arXiv 1310.2196hep-phhep-th
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局部有效理论中的反常中介

Anomaly Mediation in Local Effective Theories

Michael Dine, Patrick Draper

摘要:

这种被称为"异常调解”的现象可以用多种方式来理解。某些高根诺双线性项不是反常,而是局域超对称性和规范不变性所必需的(这些项的推导在某些情况下与标度不变性或$R$对称性的反常有关)。我们解释了为什么在具有不同数量的颜色和味道的超对称规范理论中需要Gaugino双线性。通过工作在希格斯相,测量一个味群,或工作在低于尺度的高吉诺凝聚,这些理论中的每一个都有一个局部有效的描述,我们可以确定双线性项,建立其必要性在微观理论。例如,在表现出高吉诺凝聚的理论中,由于非微扰超势和高吉诺双线性项之间的关系,极低能理论中的势精确地是超对称的。类似地,引力子的质量也是从它与高更子双线性的耦合中显现出来的。

英文摘要:

The phenomenon known as ``anomaly mediation" can be understood in a variety of ways. Rather than an anomaly, certain gaugino bilinear terms are required by local supersymmetry and gauge invariance (the derivation of these terms is in some cases related to anomalies in scale invariance or $R$ symmetries). We explain why the gaugino bilinear is required in supersymmetric gauge theories with varying number of colors and flavors. By working in the Higgs phase, gauging a flavor group, or working below the scale of gaugino condensation, each of these theories has a local effective description in which we can identify the bilinear term, establishing its necessity in the microscopic theory. For example, in theories that exhibit gaugino condensation, the potential in the very low energy theory is supersymmetric precisely due to the relation between the nonperturbative superpotential and the gaugino bilinear terms. Similarly, the gravitino mass appears from its coupling to the gaugino bilinear.

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