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Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis
Abstract
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 are calculated by using the full relevant terms in the supergravity lagrangian, and (ii) the high energy photon spectrum is obtained by solving the Boltzmann equations numerically. Photo-dissociation of the light elements (D, T, 3He, 4He) leads to the most stringent upperbound on the reheating temperature, which is given by (106-109) GeV for the gravitino mass 100 GeV - 1 TeV. On the other hand, requiring that the present mass density of photino should be smaller than the critical density, we find that the reheating temperature have to be smaller than (1011-1012) GeV for the photino mass (10-100) GeV, irrespectively of the gravitino mass. The effect of other decay channels is also considered.
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Citations
Cited by
New cosmological constraints on primordial black holes
Carr, B. J., Kohri, K., Sendouda, Y., & Yokoyama, J. (2010) · Physical Review D · doi:10.1103/physrevd.81.104019 · Cited by 1,166
Inflation dynamics and reheating
Bassett, B. A., Tsujikawa, S., & Wands, D. (2006) · Reviews of Modern Physics · doi:10.1103/revmodphys.78.537 · Cited by 1,020
A lower bound on the right-handed neutrino mass from leptogenesis
Davidson, S., & Ibarra, A. (2002) · Physics Letters B · doi:10.1016/s0370-2693(02)01735-5 · Cited by 937
Big-bang nucleosynthesis and hadronic decay of long-lived massive particles
Kawasaki, M., Kohri, K., & Moroi, T. (2005) · Physical Review D · doi:10.1103/physrevd.71.083502 · Cited by 817
Self-citationAspects of Split Supersymmetry
Arkani-Hamed, N., Dimopoulos, S., Giudice, G. F., & Romanino, A. (2005) · Nuclear Physics B · doi:10.1016/j.nuclphysb.2004.12.026 · Cited by 666
Metadata
- Authors
- Kawasaki, M., & Moroi, T.
- Venue
- Progress of Theoretical Physics
- Publisher
- Oxford University Press
- Published
- 1995-05-01
- Volume
- 93
- Issue
- 5
- Pages
- 879-899
- ISSN
- 0033-068X (ISSN-L)
- OpenAlex
- W4235602269
- Cited by
- 184
- References
- 0
- FWCI
- 4.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis. https://app.cochat.ai/papers/10.1143/ptp.93.879
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- Kawasaki, M., & Moroi, T. (1995). Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis. Progress of Theoretical Physics. https://doi.org/10.1143/ptp.93.879
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