The first-known observations of matter–antimatter asymmetry in a decaying composite subatomic particle that belongs to the ...

Scientists observe CP violation in baryons, a key clue in understanding why matter dominates the universe over antimatter.

In Part 2, we present further evidence on the production of mesons, which allows us to show that many of the observed mesons are locally generated in the ‘explosive’ disintegration of nuclei ...

IN Nature of January 29, 1949 (p. 181), Prof. L. Jánossy and C. B. A. McCusker presented evidence for the existence of light mesons called 'λ-mesons' in the air showers of cosmic rays, and ...

Mesons are unstable and decay (into other mesons) almost as soon as they’re created, which is how they’re detected in the GlueX experiment. Observing the decay of strange mesons and other exotic ...

For the first time, physicists at CERN saw a "charm meson particle" switch between matter and antimatter.

Light and heavy New calculations reveal quark distributions in flavour-asymmetric mesons. (Courtesy: iStock Traffic-Analyzer) The distribution of quarks inside flavour-asymmetric mesons has been ...

Quarks and antiquarks are the teeny, tiny building blocks with which all matter is built, binding together to form protons and neutrons in a process explained by quantum chromodynamics (QCD ...

Mesons are subnuclear particles formed when cosmic rays from outer space hit the atmosphere. In mass, mesons are intermediate between electrons and protons.