The Relativistic Heavy Ion Collider (RHIC) is a particle accelerator located at the Brookhaven National Laboratory in New York. It is designed to collide heavy ions, such as gold nuclei, at nearly the speed of light. These collisions create extreme temperatures and energy densities, allowing scientists to study the behavior of matter under conditions similar to those just after the Big Bang. RHIC aims to recreate and investigate a state of matter known as quark-gluon plasma, where quarks and gluons, the fundamental building blocks of protons and neutrons, are free from their usual confinement. By analyzing the particles produced in these collisions, researchers gain insights into the fundamental forces of nature and the early universe's conditions.