论文标题
全球单极作为Brans-Dicke散装重力的散装结构的发电机
Global monopole as a generator of a bulk-brane structure in Brans-Dicke bulk gravity
论文作者
论文摘要
我们研究了在Brans-Dicke Gravity的背景下由全球单极产生的Braneworld模型。求解动态方程后，我们发现了一个能够减轻所谓层次结构问题的模型。获得的框架是通过具有七维时空的杂种压实方案来描述的，其中棕褐色具有四个非紧凑型尺寸和两个卷曲的额外尺寸。研究了所得模型的相关方面，并讨论了避免众所周知的类似Seesaw的行为的要求。我们表明，在某些条件下，可以规避这种病理行为，以表征大多数表现出杂种压实的模型。最后，我们通过考虑将该模型的可能扩展到具有多个麸皮和类似Orbifold的额外维度的设置来加深我们的分析。为此，我们计算了由Braneworld Sum规则形式主义预测的这种更通用的配置所遵守的一致性条件。这项研究表明该模型中只有正brane张力的可能性。
We investigate a braneworld model generated by a global monopole in the context of Brans-Dicke gravity. After solving the dynamical equations we found a model capable to alleviate the so-called hierarchy problem. The obtained framework is described by a hybrid compactification scheme endowed with a seven-dimensional spacetime, in which the brane has four non-compact dimensions and two curled extra dimensions. The relevant aspects of the resulting model are studied and the requirements to avoid the well known seesaw-like behavior are discussed. We show that under certain conditions it is possible to circumvent such a pathological behavior that characterizes most of the models that exhibit hybrid compactification. Lastly, we deepen our analysis by considering possible extensions of this model to a setup with multiple branes and orbifold-like extra dimension. For this, we compute the consistency conditions to be obeyed by this more general configuration as predicted by the braneworld sum rules formalism. This study indicates the possibility of exclusively positive brane tensions in the model.
