One theory that solved the kaon to muon rate puzzle and the expected flavor-changing neutral current predicted the constituents of this particle, and is called the GIM mechanism.
Using an effect similar to Debye screening in QED, this particle is thought to be able to be used as a thermometer for a quark-gluon plasma based on its "melting temperature" or dissociation. One theory that solved the kaon to muon rate puzzle and the expected flavor-changing neutral current predicted the constituents of this particle, and is called the GIM mechanism. Much like the Upsilon meson, this particle is often cited for the OZI rule governing the decay of certain particles which involves the annihilation of their constitutents. This particle has a rest mass of 3.096 Giga Electronvolts. It is the second exited state of (*) charmonium and was discovered at the Stanford Linear Accelerator and the Brookhaven National Laboratory. Consisting of a charm quark and an anti-charm quark, for 10 points, name this particle independently discovered by Burton Richter and Samuel Ting, with a two part name.
Using an effect similar to Debye screening in QED, this particle is thought to be able to be used as a thermometer for a quark-gluon plasma based on its "melting temperature" or dissociation.
{J/psi} meson