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dc.contributor.authorOkada, Nen_US
dc.contributor.authorSeto, Oen_US
dc.date.accessioned2019-04-03T06:37:52Z-
dc.date.available2019-04-03T06:37:52Z-
dc.date.issued2005-01-01en_US
dc.identifier.issn2470-0010en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.71.023517en_US
dc.identifier.urihttp://hdl.handle.net/11536/24492-
dc.description.abstractWe investigate the thermal production of gravitinos in the context of the brane world cosmology. Since the expansion law is modified from the one in the standard cosmology, the Boltzmann equation for the gravitino production is altered. We find that the late-time gravitino abundance is proportional to the "transition temperature", at which the modified expansion law in the brane world cosmology is connecting with the standard one, rather than the reheating temperature after inflation as in the standard cosmology. This means that, even though the reheating temperature is very high, we can avoid the overproduction of gravitinos by taking the transition temperature low enough. Therefore, the gravitino problem can be solved.en_US
dc.language.isoen_USen_US
dc.titleBrane world cosmological solution to the gravitino problemen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevD.71.023517en_US
dc.identifier.journalPHYSICAL REVIEW Den_US
dc.citation.volume71en_US
dc.citation.issue2en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000226702700028en_US
dc.citation.woscount21en_US
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