Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis
Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis
Gravitino production and decay in the inflationary universe are reexamined. Assuming that the gravitino mainly decays into a photon and a photino, we calculate the upperbound on the reheating temperature. Compared to previous works, we have essentially improved the following two points: (i) the helicity ±(3/2) gravitino production cross sections …