twohadron

A two-hadron is a subatomic particle composed of two hadrons. Hadron is a general term for particles that interact via the strong force, including baryons (such as protons and neutrons) and mesons (such as pions and kaons). Two-hadrons can be formed in high-energy particle collisions or in the decay of heavier particles. They are of particular interest in the study of quantum chromodynamics (QCD), the theory that describes the strong force.

Two-hadrons can be classified based on their spin and parity. For example, a two-hadron system with spin 0 and positive parity is called an isoscalar scalar. Two-hadrons can also be classified based on their internal structure. For instance, a two-hadron system composed of a baryon and an antibaryon is called a baryon-antibaryon system.

The study of two-hadrons is important for understanding the properties of the strong force and the structure of hadrons. For example, the study of two-hadron systems can provide insights into the confinement of quarks and gluons, one of the fundamental properties of QCD. Additionally, the study of two-hadron systems can help in the search for new particles and the understanding of the fundamental forces of nature.

In experimental particle physics, two-hadrons are often studied using particle accelerators and detectors. For instance, the Large Hadron Collider (LHC) at CERN is used to study two-hadron systems produced in high-energy proton-proton collisions. The data collected from these experiments are analyzed using sophisticated theoretical models to extract information about the properties of the strong force and the structure of hadrons.