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arXiv 0708.2767hep-phhep-th
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等价原理与规范层次问题

Equivalence Principle and the Gauge Hierarchy Problem

Xavier Calmet

摘要:

我们表明,规范层次问题可以解决的标量-张量理论的框架内的引力非常相同的方式,因为它是解决在兰德尔Sundrum的情况。我们的解决方案包括对引力扇区进行微调。然而,我们的机制并不需要引入额外的维度或新的物理强耦合到低能量区的标准模型。我们引入了一个新的标量场,但是它只与规则物质引力耦合。弱标度与普朗克标度分裂的物理原因是违反了爱因斯坦的等效原理。

英文摘要:

We show that the gauge hierarchy problem can be solved in the framework of scalar-tensor theories of gravity very much in the same way as it is solved in the Randall-Sundrum scenario. Our solution involves a fine-tuning of the gravitational sector. However our mechanism does not require the introduction of extra-dimensions or new physics strongly coupled to the standard model in the low energy regime. We do introduce a new scalar field which is however coupled only gravitationally to regular matter. The physical reason for the splitting between the weak scale and the Planck scale is a violation of the Einstein's equivalence principle.

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