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arXiv 0908.4122hep-ph
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SO(10)畴壁膜模型

SO(10) domain-wall brane models

Jayne E. Thompson, Raymond R. Volkas

摘要:

我们构造了基于大统一群SO(10)的畴壁膜模型,推广了Davies,George和Rupas的SU(5)模型.受Dvali-Shifman关于规范玻色子动力学局域化的提议的启发,SO(10)对称性在壁内自发破缺。我们提出两种方案:在第一种情况下,壁内的不破子群是SU(5)x U(1)X,在第二种情况下,它是左右对称群SU(3)x SU(2)L x SU(2)R x U(1)B-L。在这两种情况下,我们证明了现象学正确的费米子零模式可以本地化的墙壁,我们简要讨论了如何的diely打破动态可能会被扩展到诱导打破标准模型组与随后的电弱打破。动态局部重力是通过2型兰德尔-桑德拉姆机制实现的。

英文摘要:

We construct domain-wall brane models based on the grand-unification group SO(10), generalising the SU(5) model of Davies, George and Volkas. Motivated by the Dvali-Shifman proposal for the dynamical localisation of gauge bosons, the SO(10) symmetry is spontaneously broken inside the wall. We present two scenarios: in the first, the unbroken subgroup inside the wall is SU(5) x U(1)X, and in the second it is the left-right symmetry group SU(3) x SU(2)L x SU(2)R x U(1)B-L. In both cases we demonstrate that the phenomenologically-correct fermion zero modes can be localised to the wall, and we briefly discuss how the symmetry-breaking dynamics may be extended to induce breaking to the standard model group with subsequent electroweak breaking. Dynamically localised gravity is realised through the type 2 Randall-Sundrum mechanism.

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