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Constraints on pre-big bang parameter space from CMBR anisotropies

The so-called curvaton mechanism --a way to convert isocurvature perturbations into adiabatic ones-- is investigated both analytically and numerically in a pre-big bang scenario where the role of the curvaton is played by a sufficiently massive Kalb--Ramond axion of superstring theory. When combined...

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Detalles Bibliográficos
Autores principales: Bozza, V., Gasperini, M., Giovannini, Massimo, Veneziano, G.
Lenguaje:eng
Publicado: 2002
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.67.063514
http://cds.cern.ch/record/595964