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[[UTAPwiki/セミナー/初期宇宙・相対論速報]] Speaker: Takahiro Terada Title: TBA Title: Supersymmetric R^2 inflation: the status of F(R) supergravity Abstract: TBA Abstract: The Starobinsky model is one of the inflationary models favored by the Planck data. Its action contains the second order term of Ricci scalar besides the Einstein-Hilbert term. Recently there are many interests in embedding it into the supergravity framework, because the latter is the leading candidate of physics beyond the Standard Model. Actually, about 10 papers appeared this summer from various perspectives. I will review the current situation and their relations. The main part of the talk will be reanalysis of the so-called F(R) supergravity based on arXiv:1309.7494. Finally, generic supergravity action leading to R^2 inflation is discussed. The interesting point is that the action contains terms needed not only for the Starobinsky inflation but also for the Higgs inflation. |