Large tensor-to-scalar ratio and running of the scalar spectral index with instep inflation

• Verfasst von: Ballesteros, Guillermo [VerfasserIn]
• Verfasst von: Casas, J. Alberto [VerfasserIn]
• Titel: Large tensor-to-scalar ratio and running of the scalar spectral index with instep inflation
• Verf.angabe: Guillermo Ballesteros, and J. Alberto Casas
• E-Jahr: 2015
• Jahr: 3 February 2015
• Umfang: 11 S.
• Fussnoten: Gesehen am 29.07.2020
• Titel Quelle: Enthalten in: Physical review / D
• Ort Quelle: [S.l.] : Soc., 1970
• Jahr Quelle: 2015
• Band/Heft Quelle: 91(2015,4) Artikel-Nummer 043502, 11 Seiten
• ISSN Quelle: 1550-2368
• ISSN Quelle: 1089-4918
• DOI: doi:10.1103/PhysRevD.91.043502
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1725846713

Abstract

If a sizeable tensor-to-scalar ratio ∼0.1 turns out to be detected and a negative running of the scalar spectral index ∼10−2 is significantly required by the data, the vast majority of single field models of inflation will be ruled out. We show that a flat tree-level effective potential, lifted by radiative corrections and by the imprints of a high energy scale (in the form of nonrenormalizable operators) can explain those features and produce enough inflation in the slow-roll regime.