El próximo martes 16 de diciembre, Suzanne Staggs, Henry DeWolf Smyth Professor of Physics en Princeton University y destacada investigadora en cosmología observacional, dictará el coloquio “Reaching Beyond Standard Model Physics from the Atacama Desert” a las 14 horas en la Sala 208 del Instituto de Física, Edificio de Ciencias, Campus Curauma, PUCV.
Compartimos el resumen de la presentación:
The high and dry desert of the Chilean Andes is a magnificent site from which to observe the universe. The Atacama Cosmology Telescope (ACT) made measurements of the cosmic microwave background (CMB) from there for fifteen years, with a series of three cameras. The Simons Observatory , comprising a suite of telescopes, is in the midst of commissioning some telescopes and performing Initial Science Observations with others. ACT was designed to complement Planck, the latest and most sensitive CMB satellite. To compete with the powerful data set provided from a major space mission requires years of observations from bespoke arrays of thousands of detectors; for ACT these were cooled to 100 mK and deployed on the eponymous special-purpose 6 m telescope, on a plateau at 5190 m. The last major data release from ACT is DR6. Analysis of the DR6 CMB power spectra complemented by Planck CMB data leads to the most precise LCDM model of the universe yet obtained. With or without combining with BAO data, the resulting LCDM model does not predict the H0 estimated from SNe calibrated with Cepheids. The data set allows improved constraints on a range of extensions to the LCDM model as well. Simons Observatory is designed to provide additional and complementary information about beyond standard model physics, including evidence of a possible inflationary phase and/or evidence of new ultralight particles. ACT, Simons Observatory, and their impacts on cosmology will be described.
Extendemos la invitación a la comunidad del Instituto de Física y público interesado a participar de este coloquio.
