D3/D7 branes at singularities: constraints from global embedding and moduli stabilisation
D3/D7 branes at singularities: constraints from global embedding and moduli stabilisation
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DOI：
10.1007/jhep07(2013)150
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发表时间：
2013-07-01
影响因子：
5.4
通讯作者：
Valandro, R.
中科院分区：
文献类型：
--
作者：
Cicoli, M.;Krippendorf, S.;Valandro, R.
在卡拉比-丘orientifolds的IIB型弦紧化的框架中，我们描述了如何构建一致的全球嵌入模型与分数D3-膜和连接的“味”D 7-膜在德尔佩佐奇点与模稳定。我们的结果被应用于建立一个明确的紧凑的例子，左右对称模型在dP（0）奇点，其特点是三个家庭的手征物质和规范耦合统一在中间尺度。我们展示了如何稳定的模量获得一个受控的德西特最小值和自发的超对称性破缺。我们发现一个有趣的非平凡的动力学之间的关系TeV尺度的软条款的要求和正确的唯象值的统一规范耦合和统一尺度。
In the framework of type IIB string compactifications on Calabi-Yau orientifolds we describe how to construct consistent global embeddings of models with fractional D3-branes and connected 'flavour' D7-branes at del Pezzo singularities with moduli stabilisation. Our results are applied to build an explicit compact example with a left-right symmetric model at a dP(0) singularity which features three families of chiral matter and gauge coupling unification at the intermediate scale. We show how to stabilise the moduli obtaining a controlled de Sitter minimum and spontaneous supersymmetry breaking. We find an interesting non-trivial dynamical relation between the requirement of TeV-scale soft terms and the correct phenomenological values of the unified gauge coupling and unification scale.