The matter-antimatter asymmetry problem - CERN
One of the greatest challenges in physics is to figure out what happened to the antimatter, or why we see an asymmetry between matter and antimatter. Antimatter particles share the same mass as their matter counterparts, but qualities such as electric charge are opposite.
Antimatter - CERN
But when matter and antimatter come into contact, they annihilate – disappearing in a flash of energy. The Big Bang should have created equal amounts of matter and antimatter. So why is there far more matter than antimatter in the universe? At CERN, physicists make antimatter to study in experiments.
Probing dark matter using antimatter - CERN
2019年11月13日 · Dark matter and the imbalance between matter and antimatter are two of the biggest mysteries of the universe. Astronomical observations tell us that dark matter makes up most of the matter in the cosmos but we do not know what it is made of.
Largest matter-antimatter asymmetry observed - CERN
2022年3月18日 · CP asymmetry is the only non-trivial difference between matter and antimatter found so far. Its discovery in neutral kaon decays in 1964 came as a big surprise to the physics community, but today it is an essential component of the Standard Model of particle physics.
antimatter - CERN
Several experiments at CERN study the properties of antimatter – material composed of antiparticles which have the same mass as matter particles but opposite charge.
BASE breaks new ground in matter–antimatter comparisons
2022年1月5日 · Analysing proton and antiproton measurements taken over a year and a half at CERN’s antimatter factory, a unique facility for antimatter production and analyses, the BASE team measured the electric charge-to-mass ratios of …
Storing antihydrogen - CERN
Astronomers search for antimatter in space, but it’s hard to come by on Earth. So in order to study it, physicists have to make it themselves. And because antimatter annihilates in a flash of energy when it interacts with regular matter, storing it presents a challenge.
LHCb sheds light on two pieces of the matter–antimatter puzzle
2024年12月16日 · In two new articles, the LHCb collaboration at the Large Hadron Collider (LHC) reports seeing evidence of CP violation in decays of baryons and in decays of beauty hadrons into charmonium particles, shedding light on these two pieces of the matter–antimatter puzzle.
First atoms of antimatter produced at CERN
1996年1月4日 · New experiments are currently being planned, to capture antimatter in electrical and magnetic bottles or traps allowing for high precision analysis. The first ever creation of atoms of antimatter at CERN has opened the door to the systematic exploration of the antiworld.
What happened to antimatter? - CERN
2013年5月13日 · What happened to antimatter? Where is the missing antimatter? CERN scientist Rolf Landua teams up with TED-Ed animators to explain the disparity that allows us to exist