That is, for every 1.7 billion proton-antiproton pairs ... time that processes involving mesons — particles made of quark-antiquark pairs — violate CP symmetry, which is just how Cronin ...

But the size of this asymmetry in the Standard Model is not large enough to account for the imbalance and the asymmetry has so far been observed only in certain decays of particles called mesons, ...

The J/psi is a charmonium particle—a meson consisting of a charm quark and a charm antiquark. Performing a similar analysis to that of the bottom lambda baryon study, and also using data from ...

Hypertriton contains a lambda hyperon, which holds a strange quark, while antihypertriton consists of an antiproton, an antineutron, and an antilambda. Following the discovery of antihyperhydrogen-4 ...

Antiprotons are the antimatter counterparts of protons, and when an antiproton encounters a proton or neutron, they mutually annihilate. This reaction is characterized by its stability and ...

Lab celebrates a year of scientific successes, from creating the biggest bits of antimatter to improving qubits, catalysts, batteries, and more! With one-of-a-kind research facilities leveraged by ...

The Antiproton Decelerator, a massive particle accelerator at CERN, makes about 10 nanograms of antiprotons a year at a cost of several million dollars. Extrapolating that out, producing one gram ...

They observed the decay products of antihyperhelium-4 – namely, an antihelium-3 nucleus, an antiproton, and a charged pion. This is the first evidence of the heaviest antimatter hypernucleus yet ...

Scientists at CERN's ALICE detector are replicating conditions found during the Big Bang, attempting to get to the bottom of how matter came to dominate over antimatter. The world's most massive ...

Display of a candidate neutral beauty meson decaying into an excited neutral kaon and a J/ψ meson. The J/ψ meson decays into a pair of muons (red lines) and the excited neutral kaon decays into a ...