论文标题
$α$ - 超对称破坏的吸引者
$α$-attractors from supersymmetry breaking
论文作者
论文摘要
我们构建了新的通货膨胀模型和自发的超对称性破坏，在De Sitter真空中，带有单手性超级场地，其中Aftraton是Goldstino的超级球员。我们的方法基于双曲线kähler几何形状，以及一个测量（非轴基）$ u（1）_r $对称性，通过一个相旋转手性标量场。 $ u（1）_r $ gauge场与手性标量的角成分结合在一起，形成大量矢量，单场通胀由标量的径向部分驱动。我们发现，在某个参数范围内，它们可以通过最简单的类似Starobinsky（e-Model）$α$ -Attractors近似，从而预测$ n_s $和$ r $在$1σ$ CMB约束中。超对称性（和$ r $ -smmetry）在Gravitino Mass $ M_ {3/2} \ Gtrsim 10^{14} $ GEV上被大规模打破，而费米子部门还包括一个重型旋转$ 1/2 $。在所有考虑的情况下，充气是模型中最轻的场。
We construct new models of inflation and spontaneous supersymmetry breaking in de Sitter vacuum, with a single chiral superfield, where inflaton is the superpartner of the goldstino. Our approach is based on hyperbolic Kähler geometry, and a gauged (non-axionic) $U(1)_R$ symmetry rotating the chiral scalar field by a phase. The $U(1)_R$ gauge field combines with the angular component of the chiral scalar to form a massive vector, and single-field inflation is driven by the radial part of the scalar. We find that in a certain parameter range they can be approximated by simplest Starobinsky-like (E-model) $α$-attractors, thus predicting $n_s$ and $r$ within $1σ$ CMB constraints. Supersymmetry (and $R$-symmetry) is broken at a high scale with the gravitino mass $m_{3/2}\gtrsim 10^{14}$ GeV, and the fermionic sector also includes a heavy spin-$1/2$ field. In all the considered cases the inflaton is the lightest field of the model.
