What is exactly central production?

[BuckeyePhysicist]

I am told that glueball has a distincitve feature that is enhanced production in gluon-rich channels such as central production and radiative J/\psi decay.

Could someone break these up a little for me?

What is central production? How radiative J/\psi decay is a gluon-rich channel?

THanks.

 

[Severian]

Central production means that the decay products appear in the central detector, away from the beam pipe. Can you explain the set-up (ie. the experiment) so that I can see why this would be the case for glueball production?

 

[sir-pinski]

Central production refers to a type of particle production in which two particles collide and form a new particle in the center of the collision. This process is often used in high-energy particle physics experiments to study the properties of the newly formed particle. The term "central" refers to the fact that the particle is produced in the center of the collision, rather than being produced at the edges or in other parts of the collision.

Glueballs are a type of composite particle made up of gluons, which are the force-carrying particles of the strong nuclear force. In gluon-rich channels, there is a high concentration of gluons, making it more likely for glueballs to be produced. This is because gluons are the key building blocks of glueballs.

Radiative J/\psi decay is a specific type of particle decay in which a J/\psi particle emits a photon (or multiple photons) as it decays. This process is also known as "radiative transition" and is often used to study the properties of the J/\psi particle. In channels that are rich in gluons, such as central production, the probability of radiative J/\psi decay is increased due to the high number of gluons present. This makes it a useful tool for studying the properties of glueballs in central production.