On inflation scenarios and dark energy in a scaled gravity

被引：3

作者：

Belhaj, A. ^{[1
]}

Benali, M. ^{[1
]}

Ennadifi, S. -E. ^{[2
]}

Lamaaoune, M. ^{[1
]}

Oualaid, M. ^{[1
]}

机构：

[1] Univ Mohammed V Rabat, Fac Sci, Dept Phys Equipe Sciencesde Matiere Rayonnement ES, Rabat, Morocco

[2] Univ Mohammed V Rabat, Fac Sci, LPHE MS, Rabat, Morocco

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2023年 / 20卷 / 10期

关键词：

Inflation; kinetic terms; cosmological observables; slow-roll computations; Planck experimental findings; dark energy; HUBBLE-SPACE-TELESCOPE; CONSTANT; FLATNESS; UNIVERSE; HORIZON;

D O I：

10.1142/S0219887823501670

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we investigate an inflation scenario and dark energy in a scaled gravity, R+ ss R where ss is a dimensionless gravity parameter, with a kinetic term. To reduce the associated moduli space, we implement such a parameter in a specific scalar potential given by V (Phi) = M-4( 1 - ( f (mu)/(Phi))(beta)). By computing the relevant cosmological observables including the spectral index n(s) and the tensor-to-scalar ratio r via the slow-roll analysis, we provide certain inflationary constraints on ss from the Planck observational and the recent released BICEP/Keck data. By means of a possible Higgs-inflaton coupling, we discuss dark energy in the proposed scaled gravity within such an inflation model.

引用

页数：14