Abstract
Gravitinos are produced in the reheating phase of the inflationary universe. We consider the destruction of light elements ( 4he, 3He and D) by the high energy photons produced by the decay of gravitinos. The spectrum of high energy photons, which was roughly treated previously, is obtained more precisely by a numerical integration of the Boltzmann equation and a constraint on the reheating temperature is derived. We conclude that the allowed reheating temperature is as high as 10 9−10 12 GeV for gravitinos with a mass between 100 GeV and 1 TeV and a much higher reheating temperature is allowed for gravitinos with mass greater than 1 TeV. This constraint is weaker than previous work by more than two orders of magnitude in the mass range above ∼300 GeV.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
