Brane inflation driven by an arctan potential: CMB constraints and reheating. Issue 7 (1st July 2022)

• Record Type: Journal Article
• Authors: Neves, R.M.P.; Santos da Costa, S.; Brito, F.A.; Alcaniz, J.S.
• Is Part Of: Journal of cosmology and astroparticle physics. Volume 2022:Issue 7(2022)
• Publication Date: 2022-07-01
• Subjects: cosmological parameters from CMBR -- inflation -- modified gravity -- Statistical sampling techniques; Cosmology -- Periodicals; Astrophysics -- Periodicals; 523.0105
• DOI: 10.1088/1475-7516/2022/07/024
• Languages: English
• ISSNs: 1475-7516

Abstract

Abstract: We investigate the early universe evolution in the context of brane inflation driven by a supergravity-inspired arctan potential. We performed a slow-roll and a semi-analytical reheating analyses and obtained constraints on the inflationary parameters in agreement with Planck 2018 data. We also employed a Markov Chain Monte Carlo analysis to perform a parameter estimation of the cosmological parameters, obtaining results in good agreement with the currently available cosmic microwave background and baryon acoustic oscillation data. This work establishes the general theoretical predictions of the arctan model, with the results of the statistical analysis corroborating its observational viability.