#baryon

• Antihyperon — The antiparticle corresponding to a hyperon; an unstable baryon with a negative baryon number, composed exclusively of antiquarks, at least one of which is a strange, charm, bottom, or top antiquark. In a structural sense, it possesses the same mass and lifespan as the respective hyperon, but opposite electric charge and strangeness number.
• Antineutron — The antiparticle corresponding to the neutron, possessing exactly the same mass and spin, but characterized by an opposite baryon number and a magnetic moment of opposite sign relative to the neutron. Although globally electrically neutral, its internal structure is composed of antiquarks (two down antiquarks and one up antiquark), determining its specific annihilation behavior upon contact with ordinary baryonic matter.