Constraints on the reheating temperature in gravitino dark matter scenarios

By J. Pradler, F. Steffen. 2006

231 citations recorded by the source corpus.

Abstract Considering gravitino dark matter scenarios, we study constraints on the reheating temperature of inflation. We present the gauge-invariant result for the thermally produced gravitino yield to leading order in the Standard Model gauge couplings. Within the framework of the constrained minimal supersymmetric Standard Model (CMSSM), we find a maximum reheating temperature of about 10 7 GeV taking into account bound-state effects on the primordial 6Li abundance. We show that late-time entropy production can relax this constraint significantly. Only with a substantial entropy release after the decoupling of the lightest Standard Model superpartner, thermal leptogenesis remains a viable explanation of the cosmic baryon asymmetry within the CMSSM.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f876a4661dc2b3b74eae490cacdf03d9dc4099a7

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In Astronomy and Astrophysics

1. P. Schuster
2. A. Berlin
3. G. Krnjaic
4. N. Toro

In Nuclear and High Energy Physics

1. G. Krnjaic
2. N. Toro
3. P. Schuster
4. A. Berlin
5. N. Blinov
6. Atlas Collaboration
7. R. Essig
8. K. Zurek

Citations in the corpus

• Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX (2018, background): “[78] J.”