Spectral tilt in A-term inflation

dc.creatorAllahverdi, Rouzbeh
dc.creatorMazumdar, Anupam
dc.date2006-10-05
dc.date2006-10-26
dc.date.accessioned2026-07-07T07:28:12Z
dc.date.available2026-07-07T07:28:12Z
dc.descriptionRecently in hep-ph/0605035 and hep-ph/0608138, we have shown that primordial inflation can be embedded within the Minimal Supersymmetric Standard Model, while providing the right amplitude for the density perturbations and a tilted spectrum which matches the current data. In this short note we show that the model predicts a range of spectral tilt, $0.92 \leq n_s \leq 1$, depending on deviation from the saddle point condition. The spectral tilt saturates the lower limit when the saddle point condition is met. On the other hand the upper limit can be achieved for a slight deviation towards the point of inflection. The running of the spectral tilt remains small, and the amplitude of the temperature anisotropies remains in the correct observational regime.
dc.description4 pages. v2: we have strengthened our comments
dc.identifierhttps://arxiv.org/abs/hep-ph/0610069
dc.identifierhttp://arxiv.org/abs/hep-ph/0610069
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117647
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleSpectral tilt in A-term inflation
dc.typetext

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