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Relic dilatons in string cosmology
The allowed mass windows for a cosmic background of relic dilatons are estimated in the context of the pre-big bang scenario. The dilatons are produced from the quantum fluctuations of the vacuum, and the extension of the windows is controlled by the string mass scale. The possible relaxation of phe...
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| Lenguaje: | eng |
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1996
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| Acceso en línea: | http://cds.cern.ch/record/315589 |
| _version_ | 1780890352340697088 |
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| author | Gasperini, M. |
| author_facet | Gasperini, M. |
| author_sort | Gasperini, M. |
| collection | CERN |
| description | The allowed mass windows for a cosmic background of relic dilatons are estimated in the context of the pre-big bang scenario. The dilatons are produced from the quantum fluctuations of the vacuum, and the extension of the windows is controlled by the string mass scale. The possible relaxation of phenomenological bounds due to an intermediate stage of reheating is discussed. Even without such a relaxation, the allowed range of masses includes a light sector in which the dilatons are not yet decayed, and could provide the dominant contribution to the present large scale density. |
| id | cern-315589 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1996 |
| record_format | invenio |
| spelling | cern-3155892023-03-14T20:32:42Zhttp://cds.cern.ch/record/315589engGasperini, M.Relic dilatons in string cosmologyGeneral Relativity and CosmologyThe allowed mass windows for a cosmic background of relic dilatons are estimated in the context of the pre-big bang scenario. The dilatons are produced from the quantum fluctuations of the vacuum, and the extension of the windows is controlled by the string mass scale. The possible relaxation of phenomenological bounds due to an intermediate stage of reheating is discussed. Even without such a relaxation, the allowed range of masses includes a light sector in which the dilatons are not yet decayed, and could provide the dominant contribution to the present large scale density.The allowed mass windows for a cosmic background of relic dilatons are estimated in the context of the pre-big bang scenario. The dilatons are produced from the quantum fluctuations of the vacuum, and the extension of the windows is controlled by the string mass scale. The possible relaxation of phenomenological bounds due to an intermediate stage of reheating is discussed. Even without such a relaxation, the allowed range of masses includes a light sector in which the dilatons are not yet decayed, and could provide the dominant contribution to the present large scale density.gr-qc/9611059CERN-TH-96-330CERN-TH-96-330oai:cds.cern.ch:3155891996-11-25 |
| spellingShingle | General Relativity and Cosmology Gasperini, M. Relic dilatons in string cosmology |
| title | Relic dilatons in string cosmology |
| title_full | Relic dilatons in string cosmology |
| title_fullStr | Relic dilatons in string cosmology |
| title_full_unstemmed | Relic dilatons in string cosmology |
| title_short | Relic dilatons in string cosmology |
| title_sort | relic dilatons in string cosmology |
| topic | General Relativity and Cosmology |
| url | http://cds.cern.ch/record/315589 |
| work_keys_str_mv | AT gasperinim relicdilatonsinstringcosmology |