Hi! My name is Jaime and my research is mainly focused in Cosmology. I am most interested in problems that lay at the interface between theory and observations. Particularly, I work on investigating the potential origin, causes and solutions to the apparent lack of clumpiness of the present time Universe; known as the S8 tension. In other words, I research why the extrapolated value for the clumpiness of the Universe at present time from early universe measurements; i.e. the CMB, doesn't match the inferred values from large scale structure measurements in the present Universe.
Currently, I am part of a team in BIPAC joining efforts with the goal of reconstructing the evolution of S8 in redshift in a model independent way. My contributions mainly focus in the development of codes to analyze different sources of large scale structure measurements and implementing novel stochastic data fitting tools to perform the model-free inference.
In the past, I have collaborated with the KiDS team, leading the Geometry vs Growth analysis of the latest data release of the collaboration; a methodology aimed at isolating the particular aspect of the LCDM model responsible for the S8 tension.