Eusebio Sánchez, Scientific researcher at CIEMAT, PI of the Cosmology Group
Abstract: The beginning of the 21st century brought the development and confirmation of the standard model of cosmology, LCDM. The Universe is made of a 70% of dark energy in the form of a cosmological constant, a 25% of dark matter, of completely unknown microscopic composition, and a 5% of ordinary matter. This theory has had a surprising and overwhelming success in the explanation of the cosmos. However, the first results of the Dark Energy Spectroscopic Instrument (DESI-Y1) have shown some tensions with LCDM. In this talk, a description of the DESI galaxy survey and the cosmological results obtained with its first year of data will be presented, reviewing its implications for the dark sector of the Universe and its possible consequences for our understanding of the cosmos.
Thursday, February 13, 12:00, Nuclear Physics Seminar. On line
