The experiments will look for neutrino oscillations, the transformation of one type of neutrino into another, a unique indication for neutrino mass. Physicists think that the Big Bang produced a primordial soup of particles containing free-moving quarks and gluons, the building blocks that eventually formed protons and neutrons. Scientists at the Brookhaven National Laboratory try to recreate these conditions by colliding gold ions at high energies. Particle physicists can produce antimatter with accelerators, and current experiments even investigate the properties of antihydrogen . Our everyday world, however, is completely dominated by matter.
Scientists believe that the early universe contained as many particles as antiparticles.
As they interacted with each other, a slight asymmetry in the laws of nature favored the survival of matter. Experimenters have observed this misalignment in processes involving kaons, unstable particles that contain strange quarks. The CDF and DZero experiments at Fermilab, as well as the HERA-B experiment at the German particle physics laboratory DESY, carry out complementary research. The lopsided universe CP symmetry and its violation Dark Matter Astrophysics experiments have shown that visible, or luminous, matter accounts for less than 10 percent of the entire mass in the universe. The motion of galaxies and other scientific observations indicate the presence of gravitational forces that seem to come from an unknown type of invisible matter, called dark matter.