标题： 更新ACT之后的GUT尺度极点希格斯膨胀 显示英文标题

标题： Updating GUT-Scale Pole Higgs Inflation After ACT

摘要： 我们考虑由在大统一对称性自发破缺尺度下参与的共轭Higgs超场实部驱动的混沌暴胀模型，假设其值在MSSM范围内。 我们将由应用连续R对称性唯一确定的超势与两个分数平移对称Kähler势结合，引入两个自由参数(p,N)。 暴胀观测量对于1.355≤p≤6.7和6×10^-5≤N≤0.7的范围与最近的ACT数据非常吻合。 暴胀的实现允许亚普朗克标量场值，并且可能检测到原初引力波，其(p,N)值为数量级。 通过在模型的超势中加入适当项，还可以解决MSSM的μ问题和通过非热轻子生成实现重子生成。 显示英文摘要

摘要： We consider models of chaotic inflation driven by the real parts of a conjugate pair of Higgs superfields involved in the spontaneous breaking of a grand unification symmetry at a scale assuming its value within MSSM. We combine a superpotential, which is uniquely determined by applying a continuous R symmetry, with two fractional shift-symmetric Kaehler potentials introducing two free parameters (p,N). The inflationary observables provide an excellent match to the recent ACT data for 1.355<=p<=6.7 and 6x10^-5<= N<=0.7. The attainment of inflation allows for subplanckian inflaton values and possibly detectable primordial gravitational waves with (p,N) values of order unity. A solution to the mu problem of MSSM and baryogenesis via non-thermal leptogenesis can be also accommodated extending the superpotential of the model with suitable terms.