Saúl Ramos-Sánchez, Instituto de Física, Universidad Nacional Autónoma de México
Cosmic inflation offers the best known explanations for many of the observed features of the Universe, such as its flatness. An imprint of the qualities of this mechanism is left in the cosmic microwave background (CMB), which can be instrumental to confirm inflation. Unfortunately, there is a plethora of inflationary models, which are a priori in the same footing. It is conceivable that contrasting the predictions of the various models with the measured values of the parameters of CMB data and other cosmological observables shall allow one to single out the successful theory of inflation. In this work we provide a first contribution to this endeavor, by computing the degree of agreement between Planck data and the values of the scalar spectral tilt and the tensor-to-scalar ratio, predicted by different inflationary models. We observe that inflationary models based on power-law potentials and axion monodromy are disfavored.
Bhattacharya, Richik; Debnath, Atanu; Sajjanhar, Esha; Sardeshpande, Shravani; Tenorio Hernández, Pablo; and Torres Heredia, José Ricardo, "Challenging Predictions of Inflationary Models with CMB Data" (2022). 2022 REYES Proceedings. 5.