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Isocurvature constraints on gravitationally produced superheavy dark matter

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arxiv astro-ph/0411468 v1 pith:WFAF2CMD submitted 2004-11-16 astro-ph hep-phhep-th

Daniel J. H. Chung (Wisconsin U. , Madison) , Edward W. Kolb (Fermilab & Chicago U. , Astron. Asrophys. Ctr. & Chicago U. , EFI) , Antonio Riotto (INFN , Padua) , Leonardo Senatore (MIT) This is my paper
classification astro-phhep-phhep-th
keywords darkmattersuperheavyboundgravitationallyproducedscenarioisocurvature
verification ladder T0 review T1 audit T2 compute T3 formal
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We show that the isocurvature perturbations imply that the gravitationally produced superheavy dark matter must have masses larger than few times the Hubble expansion rate at the end of inflation. This together with the bound on tensor to scalar contribution to the CMB induces a lower bound on the reheating temperature for superheavy dark matter to be about 10^7 GeV. Hence, if the superheavy dark matter scenario is embedded in supergravity models with gravity mediated SUSY breaking, the gravitino bound will squeeze this scenario. Furthermore, the CMB constraint strengthens the statement that gravitationally produced superheavy dark matter scenario prefers a relatively large tensor mode amplitude if the reheating temperature must be less than 10^9 GeV.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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