Gravity mediated supersymmetry breaking in six dimensions
Gravity mediated supersymmetry breaking in six dimensions
复制标题
重力介导的六维超对称性破缺
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
C. Ludeling
中科院分区：
文献类型：
--
作者：
A. Falkowski;Hyun Min Lee;C. Ludeling
我们研究源自六维膜世界超引力的四维有效理论中引力介导的超对称破缺。使用诺特方法，我们为体膜系统构建了局部超对称作用，该系统由最小的六维超重力耦合到位于四维膜的矢量和手性多重态组成。体积模量与膜的耦合是唯一固定的，特别是，它们是通用的。我们在 T_2/Z_2 上压缩该系统并推导四维有效超重力。树级有效卡勒势不是隔离形式，因此重力中介可能发生在树级。我们确定了一种模量稳定的情况，其中软标量质量平方为正。
We study gravity mediated supersymmetry breaking in four-dimensional effective theories derived from six-dimensional brane-world supergravity. Using the Noether method we construct a locally supersymmetric action for a bulk-brane system consisting of the minimal six-dimensional supergravity coupled to vector and chiral multiplets located at four-dimensional branes. Couplings of the bulk moduli to the brane are uniquely fixed, in particular, they are flavour universal. We compactify this system on T_2/Z_2 and derive the four-dimensional effective supergravity. The tree-level effective Kahler potential is not of the sequestered form, therefore gravity mediation may occur at tree-level. We identify one scenario of moduli stabilization in which the soft scalar masses squared are postive.