| HAL : in2p3-00068662, version 1 |
| arXiv : astro-ph/0601299 |
| DOI : 10.1103/PhysRevD.73.083525 |
| Fiche détaillée | Récupérer au format |
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| Physical Review D (2006) 083525 |
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| Big bang nucleosynthesis constraints on scalar-tensor theories of gravity |
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| A. Coc1K.A. OliveJ.-P. UzanE. Vangioni |
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| (2006) |
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| We investigate BBN in scalar-tensor theories of gravity with arbitrary matter couplings and self-interaction potentials. We first consider the case of a massless dilaton with a quadratic coupling to matter. We perform a full numerical integration of the evolution of the scalar field and compute the resulting light element abundances. We demonstrate in detail the importance of particle mass thresholds on the evolution of the scalar field in a radiation dominated universe. We also consider the simplest extension of this model including a cosmological constant in either the Jordan or Einstein frame. |
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| 1 : | CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse |
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| Thème(s) | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Physique/Relativité Générale et Cosmologie Quantique Physique/Physique des Hautes Energies - Phénoménologie Planète et Univers/Astrophysique |
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| nucleosynthesis – cosmology – gravitation |
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| Lien vers le texte intégral : |
| in2p3-00068662, version 1 | |
| http://hal.in2p3.fr/in2p3-00068662 | |
| oai:hal.in2p3.fr:in2p3-00068662 | |
| Contributeur : Dominique Girod | |
| Soumis le : Vendredi 12 Mai 2006, 16:14:41 | |
| Dernière modification le : Vendredi 12 Mai 2006, 16:17:35 | |