The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 17 5 2019 11 26 Effective field theory of anisotropic inflation in Weinberg's approach Effective field theory of anisotropic inflation in Weinberg's approach 813 818 1324 10.29252/ijpr.17.5.813 FA T Rostami H Firouzjahi A Karami Journal Article 2019 11 26 In this paper, the effective field theory for the anisotropic inflationary universe in Weinberg's approach is studied. We consider the leading correction terms to the standard interactions in the anisotropic inflationary models. These consist of forth derivative of the fields, scalar field, gauge field and metric. Then, the scalar power spectrum is investigated in the presence of higher energy interactions, and the corrections of power spectrum are calculated. In this paper, the effective field theory for the anisotropic inflationary universe in Weinberg's approach is studied. We consider the leading correction terms to the standard interactions in the anisotropic inflationary models. These consist of forth derivative of the fields, scalar field, gauge field and metric. Then, the scalar power spectrum is investigated in the presence of higher energy interactions, and the corrections of power spectrum are calculated. https://ijpr.iut.ac.ir/article_1324_bb7946e7d85c81a9e69fee1cea4a087c.pdf