标题： 无尺度超引力实现的Starobinsky inflation模型 显示英文标题

标题： No-Scale Supergravity Realization of the Starobinsky Model of Inflation

摘要： 我们提出了一种基于无尺度超引力部门的宇宙膨胀模型，该部门具有SU(2,1)/U(1)凯勒势，一个模量T和一个由Wess-Zumino模型描述的膨胀子超场Phi，其超势参数为(mu, lambda)。 该模型产生的标量谱指数n\_s和张量-标量比r与Planck测量的结果一致，当lambda约等于mu/(3M\_P)时。 对于特定的选择lambda = mu/(3M\_P)，该模型成为R+R^2 Starobinsky模型的无尺度超引力实现。 显示英文摘要

摘要： We present a model for cosmological inflation based on a no-scale supergravity sector with an SU(2,1)/U(1) Kahler potential, a single modulus T and an inflaton superfield Phi described by a Wess-Zumino model with superpotential parameters (mu, lambda). This model yields a scalar spectral index n_s and a tensor-to-scalar ratio r that are compatible with the Planck measurements for values of lambda simeq mu/3M_P. For the specific choice lambda = mu/3M_P, the model is a no-scale supergravity realization of the R+R^2 Starobinsky model.