论文标题
超级重力的广义fayet-iliopoulos术语
Generalised Fayet-Iliopoulos terms in supergravity
论文作者
论文摘要
用fayet-iliopoulos（FI）项的U（1）矢量多重理论是最古老，最简单的模型之一，用于自发折断的刚性超对称性。将FI术语提升到超级术语需要计量$ r $ -Smmetry，正如Freedman在$ {\ cal n} = 1 $ Supergravity中首次证明的那样。存在标准FI机制的替代方法，该机制在本会议论文中进行了审查。它是通过用明显的量规不变动作替换FI模型来获得的，以便其功能形式由单个复杂变量的两个任意真实函数确定。这些函数之一为矢量多重组生成了超符号动力学项，而另一个产生了广义的FI项。将这样的矢量多重模型耦合到超级重力不需要衡量$ r $ symmetry。这些通用的FI项始终定义为$ {\ cal n} = 1 $ SuperClavity的任何外壳配方，并且与超对称宇宙学术语兼容。
The U(1) vector multiplet theory with the Fayet-Iliopoulos (FI) term is one of the oldest and simplest models for spontaneously broken rigid supersymmetry. Lifting the FI term to supergravity requires gauged $R$-symmetry, as was first demonstrated in 1977 by Freedman within ${\cal N}=1$ supergravity. There exists an alternative to the standard FI mechanism, which is reviewed in this conference paper. It is obtained by replacing the FI model with a manifestly gauge-invariant action such that its functional form is determined by two arbitrary real functions of a single complex variable. One of these functions generates a superconformal kinetic term for the vector multiplet, while the other yields a generalised FI term. Coupling such a vector multiplet model to supergravity does not require gauging of the $R$-symmetry. These generalised FI terms are consistently defined for any off-shell formulation for ${\cal N}=1$ supergravity, and are compatible with a supersymmetric cosmological term.
