Stabilizing moduli with a positive cosmological constant in heterotic M-theory
Stabilizing moduli with a positive cosmological constant in heterotic M-theory
复制标题
杂种优势 M 理论中具有正宇宙常数的稳定模
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
B. Ovrut
中科院分区：
文献类型：
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作者：
V. Braun;B. Ovrut
结果表明，S1/2 体空间中具有反五膜的强耦合异质 M 理论可以具有打破 N = 1 超对称性并具有较小的正宇宙学常数的亚稳态真空。这在“最小”杂种优势标准模型中得到了证明。该真空在可观测区域中具有精确的 MSSM 物质谱，在大空间中具有微不足道的隐藏区域矢量束以及五膜和反五膜。宇宙学常数具有现象学上可接受的值的克勒模量也显示出使可观测扇形矢量丛斜率稳定。这一结果的推论是，S1/2 区间中只有五个膜的强耦合 M 理论真空可能具有稳定的模量，但在超对称性下保持最小值，具有大的负宇宙学常数。
It is shown that strongly coupled heterotic M-theory with anti-five-branes in the S1/2 bulk space can have meta-stable vacua which break N = 1 supersymmetry and have a small, positive cosmological constant. This is demonstrated for the ``minimal' heterotic standard model. This vacuum has the exact MSSM matter spectrum in the observable sector, a trivial hidden sector vector bundle and both five-branes and anti-five-branes in the bulk space. The K?hler moduli for which the cosmological constant has phenomenologically acceptable values are shown to also render the observable sector vector bundle slope-stable. A corollary of this result is that strongly coupled M-theory vacua with only five-branes in the S1/2 interval may have stabilized moduli, but at a supersymmetry preserving minimum with a large, negative cosmological constant.