Speaker
Description
Baryogenesis, the process that is theorised to have happened in the beginning of the Universe which produced the observed baryonic asymmetry, remains one of the most fundamental problems in physics. Baryon number violation (BNV) is ordinarily required for baryogenesis, but so far, all searches for it came back negative. The HIBEAM/NNBAR program is a two stage set of experiments (HIBEAM then NNBAR) to search for BNV-only processes: neutron conversions to sterile neutrons and antineutrons, using free neutrons. Due to the enormous advances in neutron reflectometry and high intensity of neutrons that will be available at the European Spallation Source, Sweden, where the measurements are to take place, the searches can achieve unprecedented sensitivity, surpassing the last search by three orders of magnitude. In this talk I will give an overview of the current stage of the experiment showing the fast progress that has been achieved, in particular in the last two years, in all areas of the experimental program.