Heterotic line bundle standard models

Heterotic line bundle standard models
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杂种线束标准模型

DOI:
10.1007/jhep06(2012)113
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发表时间:
2012
影响因子:
5.4
通讯作者:
Anderson L
Anderson L
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Anderson L

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在以前的出版物中,arXiv:1106.4804,我们已经发现了200个模型,从杂种优势的卡-丘紧化线丛,这导致标准模型后,采取适当的平行离散对称性和引入威尔逊线。在本文中,我们明确地构建了标准模型,计算了它们的谱,包括希格斯多重态,并分析了它们的一些基本性质。在去除冗余之后,我们发现了大约400个楼下的模型,每个模型都具有超对称标准模型的精确物质谱,有一对、两对或三对希格斯二重态,没有任何外来物。除了标准模型规范群外,这些模型中还存在多达4个Green-Schwarz反常U(1)对称性,它们限制了四维有效超引力中的上述算符。与这些反常的U(1)对称性相关的矢量玻色子是有质量的。我们明确地计算每个模型的允许运营商的频谱,并在这里访问的标准模型的数据库中,与模型的定义数据一起呈现结果。基于这些结果,我们分析了基本的唯象性质。例如,对于大约200个模型,所有四维和五维质子衰变破坏算子都被额外的U(1)对称性所禁止。
In a previous publication, arXiv: 1106.4804, we have found 200 models from heterotic Calabi-Yau compactifications with line bundles, which lead to standard models after taking appropriate quotients by a discrete symmetry and introducing Wilson lines. In this paper, we construct the resulting standard models explicitly, compute their spectrum including Higgs multiplets, and analyze some of their basic properties. After removing redundancies we find about 400 downstairs models, each with the precise matter spectrum of the supersymmetric standard model, with one, two or three pairs of Higgs doublets and no exotics of any kind. In addition to the standard model gauge group, up to four Green-Schwarz anomalous U (1) symmetries are present in these models, which constrain the llowed operators in the four-dimensional effective supergravity. The vector bosons associated to these anomalous U (1) symmetries are massive. We explicitly compute the spectrum of allowed operators for each model and present the results, together with the defining data of the models, in a database of standard models accessible here. Based on these results we analyze elementary phenomenological properties. For example, for about 200 models all dimension four and five proton decay violating operators are forbidden by the additional U (1) symmetries.
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