A Superstring Inspired Standard Model
A Superstring Inspired Standard Model
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DOI：
10.1016/0370-2693(86)90137-1
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发表时间：
1986-11
影响因子：
4.4
通讯作者：
B. Greene;K. Kirklin;Paul J. Miron;G. Ross
中科院分区：
文献类型：
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作者：
B. Greene;K. Kirklin;Paul J. Miron;G. Ross
本文分析了一个E8 ~ E8超弦激发的十维超引力模型，该模型是在一个特殊的Calabi-Yau流形上紧化后产生的三代超引力模型.确定了紧化后的多重态结构和离散对称性。结果表明，该模型具有平坦的方向，这使得规范群在高尺度下破缺为标准SU（3）<$SU（2）<$U（1）模型。由此产生的低能量理论有一个现实的频谱，值得注意的是，离散的对称性预测合理的结构小林Maskawa混合矩阵。没有不自然的调整，质子衰变被抑制，中微子质量与实验极限一致。
An analysis is presented of an E8⊗ E8superstring-inspired ten-dimensional supergravity model following from compactification on a particular Calabi-Yau manifold which gives rise to three generations. The multiplet structure and discrete symmetries after compactification are determined. It is shown that the model has flat directions which allow for breaking of the gauge group to the standard SU(3) ⊗ SU(2) ⊗ U(1) model at a high scale. The resulting low-energy theory has a realistic spectrum and, remarkably, the discrete symmetries predict a reasonable structure for the Kobayashi-Maskawa mixing matrix. Without unnatural adjustments, proton decay is inhibited and neutrino masses consistent with experimental limits are obtained.