Antineutroneja

Antineutron is the antiparticle of the neutron. It has the same mass as the neutron but opposite electric charge and baryon number. The antineutron is a baryon, meaning it is composed of three quarks. Specifically, it is made up of one up antiquark and two down antiquarks. Its electric charge is zero, as is the neutron's. The antineutron's magnetic moment is opposite in sign to that of the neutron.

Antineutrons were first detected in 1956 by Bruce Cork, who was studying proton-antiproton annihilation products at the Bevatron. The detection of the antineutron was a significant confirmation of the symmetry between matter and antimatter predicted by theoretical physics.

When an antineutron encounters a neutron, they annihilate each other, producing gamma rays or other particle-antiparticle pairs, depending on their energy. Antineutrons are produced in high-energy particle collisions, such as those that occur in particle accelerators. They are also produced in cosmic ray interactions. While antineutrons are not found naturally in significant quantities on Earth, their study is crucial for understanding the fundamental forces and particles of the universe, as well as for exploring the properties of antimatter.