论文标题
$α'$ - $ d $ branes的效果，$ 4D \; \ Mathcal {n} = 1 $
On $α'$-effects from $D$-branes in $4d \; \mathcal{N} = 1$
论文作者
论文摘要
在这项工作中，我们研究了IIB Calabi-Yau Orientifold压缩在存在时空填充D7-BRANES和O7-PLANES的情况下。特别是，我们得出的结论是，$α'^2 g_s $ - 对其DBI动作的纠正会导致修改四维$ \ MATHCAL {N} = 1 $Kähler的潜力和坐标。我们专注于几何背景的一个模子案例，即$ h^{1,1} = 1 $，在其中我们发现$α'^2 g_s $ - 校正是拓扑性质。这取决于卡拉比远的四周期的第一种chern形式，该形式由D7-branes和o7平面包裹。这与我们以前的F理论分析一致，并提供了进一步的证据，证明在$α'^2 g_s $下可能破坏无尺度结构。得出了DILATON，经线因子以及内部空间度量的校正背景解决方案。此外，我们简要讨论了其他D $ p $ branes的$α'$ - 更正。
In this work we study type IIB Calabi-Yau orientifold compactifications in the presence of space-time filling D7-branes and O7-planes. In particular, we conclude that $α'^2 g_s$-corrections to their DBI actions lead to a modification of the four-dimensional $\mathcal{N}=1$ Kähler potential and coordinates. We focus on the one-modulus case of the geometric background i.e. $h^{1,1}=1$ where we find that the $α'^2 g_s$-correction is of topological nature. It depends on the first Chern form of the four-cycle of the Calabi-Yau orientifold which is wrapped by the D7-branes and O7-plane. This is in agreement with our previous F-theory analysis and provides further evidence for a potential breaking of the no-scale structure at order $α'^2 g_s$. Corrected background solutions for the dilaton, the warp-factor as well as the internal space metric are derived. Additionally, we briefly discuss $α'$-corrections from other D$p$-branes.
