Brane supersymmetry breaking
Brane supersymmetry breaking
复制标题
膜超对称性破缺
DOI：
10.1016/s0370-2693(99)01023-0
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发表时间：
1999
影响因子：
4.4
通讯作者：
A. Sagnotti
中科院分区：
文献类型：
--
作者：
I. Antoniadis;E. Dudas;A. Sagnotti
我们展示了如何构建手性无快子扰动东方折叠模型，其中超对称性在膜集合上的弦尺度上被破坏，而在最低阶上，主体膜和其他膜是超对称的。在更高阶中，超对称破缺被介导到其余扇区，但受到横向空间的大小或距主要发生超对称破缺的膜的距离的抑制。此设置对于具有离散扭转的轨道模型很重要，并且与低尺度弦模型直接相关。它可以保证规范体系相对于引力辐射修正的稳定性，从而允许距离非超对称世界一毫米的几乎精确的超引力。
We show how to construct chiral tachyon-free perturbative orientifold models, where supersymmetry is broken at the string scale on a collection of branes while, to lowest order, the bulk and the other branes are supersymmetric. In higher orders, supersymmetry breaking is mediated to the remaining sectors, but is suppressed by the size of the transverse space or by the distance from the brane where supersymmetry breaking primarily occurred. This setting is of interest for orbifold models with discrete torsion, and is of direct relevance for low-scale string models. It can guarantee the stability of the gauge hierarchy against gravitational radiative corrections, allowing an almost exact supergravity a millimeter away from a non-supersymmetric world.