A Predictive Inflationary Scenario Without The Gauge Singlet
نویسنده
چکیده
We propose a new realization of the chaotic inflationary scenario in which the scalar field responsible for inflation also spontaneously breaks the underlying gauge symmetry at a superheavy scale ∼ 1015− 1017 GeV . A possible framework is provided by the superstring inspired gauge models, in which case several predictions are essentially model independent. The spectral index for the scalar perturbations n ≃ 0.92− 0.88, while the ratio of the tensor to the scalar quadrupole anisotropy is (∆T/T )T /(∆T/T ) 2 S ≈ 0.4 − 0.7. On smaller angular scales, δT/T (1) ≈ (9− 16)× 10−6 and δT/T (2.1) ≈ (6− 10)× 10−6. Implications for magnetic monopoles and cosmic strings as well as the gauge hierarchy problem are pointed out. ∗Supported in part by DOE Grant No. DE-FG02-91ER40626 and NATO Grant No. CRG-910573
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