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Super heavy dark matter anisotropies from D-particles in the early universe
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Super heavy dark matter anisotropies from D-particles in the early universe
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| dc.contributor.author | Mavromatos, N. E. | |
| dc.contributor.author | Papavassiliou, Joannis | |
| dc.date.accessioned | 2015-04-10T08:47:30Z | |
| dc.date.available | 2015-04-10T08:47:30Z | |
| dc.date.issued | 2004 | |
| dc.identifier.citation | Mavromatos, N. E. Papavassiliou, Joannis 2004 Super heavy dark matter anisotropies from D-particles in the early universe International Journal of Modern Physics A 19 14 2355 2383 | |
| dc.identifier.uri | http://hdl.handle.net/10550/43016 | |
| dc.description.abstract | We discuss a way of producing anisotropies in the spectrum of superheavy Dark matter, which are due to the distortion of the inflationary space time induced by the recoil of D-particles upon their scattering with ordinary string matter in the Early Universe. We calculate such distortions by world-sheet Liouville string theory (perturbative) methods. The resulting anisotropies are found to be proportional to the average recoil velocity and density of the D-particles. In our analysis we employ a regulated version of de Sitter space, allowing for graceful exit from inflation. This guarantees the asymptotic flatness of the space time, as required for a consistent interpretation, within an effective field theory context, of the associated Bogolubov coefficients as particle number densities. The latter are computed by standard WKB methods. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | International Journal of Modern Physics A, 2004, vol. 19, num. 14, p. 2355-2383 | |
| dc.subject | Física | |
| dc.title | Super heavy dark matter anisotropies from D-particles in the early universe | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-04-10T08:47:30Z | |
| dc.identifier.doi | 10.1142/S0217751X04018397 | |
| dc.identifier.idgrec | 018674 | |
| dc.rights.accessRights | open access | es_ES |
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