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Constraints on pre-big bang models for seeding large-scale anisotropy by massive Kalb-Ramond axions
We discuss the conditions under which pre-big bang models can fit the observed large-scale anisotropy with a primordial spectrum of massive (Kalb--Ramond) axion fluctuations. The primordial spectrum must be sufficiently flat at low frequency and sufficiently steeper at high frequency. For a steep an...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1998
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.59.043503 http://cds.cern.ch/record/356991 |