From Forbes, Jan. 11, 2021: Fermilab scientist Don Lincoln explains a result from the LHCb experiment that adds another data point on nature’s matter-antimatter imbalance.
B meson
Matter and antimatter particles can behave differently, but where these differences show up is still a puzzle. Scientists on the LHCb experiment at the Large Hadron Collider study much more subtle differences between matter particles and their antimatter equivalents. A recent analysis allowed them to revisit an old mystery — an asymmetry between asymmetries.
Standard Model predictions align with the LHCb experiment’s observation of an uncommon decay.
Antimatter in the universe is extremely rare; the universe is made pretty much entirely out of matter. DZero digs deeper into a previous, unusual result measuring the difference between matter and antimatter.
The Bs0 meson is a superposition of two different possibilities, called CP-even and CP-odd. Does one case decay more slowly than the other?
CDF observes approximately 740 events in the muon decay mode. CDF looked for a signature of three muons, the mass of two oppositely charged muons being consistent with that of the J/ψ particle.
CMS scientists study the possible ways a B meson decays into a kaon and two muons.
After a quarter of a century of searching, physicists have discovered a rare particle decay that gives them an indirect way to test models of new physics.
Scientists of the DZero collaboration at the Department of Energy’s Fermi National Accelerator Laboratory announced Friday, May 14, that they have found evidence for significant violation of matter-antimatter symmetry in the behavior of particles containing bottom quarks beyond what is expected in the current theory, the Standard Model of particle physics.
Scientists of the CDF collaboration at the Department of Energy’s Fermi National Accelerator Laboratory announced today (September 25, 2006) that they have met the exacting standard to claim discovery of astonishingly rapid transitions between matter and antimatter: 3 trillion oscillations per second.