From Type II string theory toward BSM/dark sector physics
From Type II string theory toward BSM/dark sector physics
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DOI：
10.1142/s0217751x16300507
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发表时间：
2016-09
影响因子：
1.6
通讯作者：
G. Honecker
中科院分区：
文献类型：
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作者：
G. Honecker
弦理论的四维紧化提供了一组可控的可能的规范表示，解释了BSM粒子和暗扇区分量。在这篇评论中，从微扰II型字符串紧化的几何制度的约束进行了详细讨论，然后比较杂合字符串紧化和非微扰/非几何角落的结果。作为一个突出的例子，给出了QCD轴子的开弦实现。在四个维度的相关的低能量有效的行动的状态进行了讨论，并突出了主要的现象学的重要性的开放途径。作为例子，一个机制的闭弦模量稳定的D-膜的反作用，以及一个循环的阈值修正规范耦合和平衡低弦尺度Mstring各向异性紧凑尺寸的影响一起讨论潜在的未来新的物理观测。为了说明问题，给出了T6/（λ 2 × λ 6 × Ω λ）上具有类MSSM谱的全局相容D 6膜模型的一个显式例子.
Four-dimensional compactifications of string theory provide a controlled set of possible gauge representations accounting for BSM particles and dark sector components. In this review, constraints from perturbative Type II string compactifications in the geometric regime are discussed in detail and then compared to results from heterotic string compactifications and nonperturbative/nongeometric corners. As a prominent example, an open string realization of the QCD axion is presented. The status of deriving the associated low-energy effective action in four dimensions is discussed and open avenues of major phenomenological importance are highlighted. As examples, a mechanism of closed string moduli stabilization by D-brane backreaction as well as one-loop threshold corrections to the gauge couplings and balancing a low string scale Mstring with unisotropic compact dimensions are discussed together with implications on potential future new physics observations. For illustrative purposes, an explicit example of a globally consistent D6-brane model with MSSM-like spectrum on T6/(ℤ 2 × ℤ6 × Ωℛ) is presented.