Nuclear Matter Phase Diagram

Question: Describe about the Article for Nuclear Matter Phase Diagram. Answer: The phase diagram tends to denote the various phases of a particular substance which tends to vary with various external characteristics such as pressure, temperature and density. This phase diagram is not only relevant for matter but also for nuclear particles and is one of the most significant topics in the field of nuclear physics. With regards to exploring more about the various phases of the nuclear particles, the leading and lone experiment is the STAR (Solenoidol Tracker at RHIC) experiment which is being currently performed at RHIC. The composition of nuclear matter consists of baryons and mesons blobs which are composed of smaller sub-particles called as quarks which are held together by gluons. A meson is made of a quark and anti-quark unlike baryon which is made of three quarks. Hagedorn through his experiment concluded that it is not possible to heat matter more than a particular temperature called as the limiting temperature defined at 160-180 MeV. However, this concept of limiting temperature can also be extended to nuclear matter as If the nuclear matter is heated beyond the limiting temperature, then there would not be separate hadrons (i.e. protons and neutrons) but these would be present in the form of the various constituents namely quarks and gluons which is commonly known as QCD or quark-gluon plasma. It is a challenge to produce this very high temperature in a laboratory environment where the nuclear particles phase may be studied and analysed. This is achieved through the collisions of heavy nuclei which tend to move at very high speeds as they are passed through a solenoidal magnetic field which provides acceleration to these particles. When these collisions happen, the requisite limiting temperature is reached and certain particles are produced whose distribution and correlation is studied so as to opine on the phases of the nuclear matter. This typically is achieved through the detector which plays a very crucial role in all such experiments. Although the best physicists are working on this experiment but yet the data obtained thus far has been inconclusive and hence going ahead more and accurate data is required so as to reach concluding evidence with regards to presence of QCD.