Determination of the Equation of State of Dense Matter

Details Determination of the Equation of State of Dense Matter Determination of the Equation of State of Dense Matter

2002-08-08

arxiv.org/abs/nucl-th/0208016v2

Science 298 (2002) 1592-1596

Physics

Nuclear Physics

Nuclear Theory

26 pages, 6 figures; final version

Scientific paper

10.1126/science.1078070

Nuclear collisions can compress nuclear matter to densities achieved within neutron stars and within core-collapse supernovae. These dense states of matter exist momentarily before expanding. We analyzed the flow of matter to extract pressures in excess of 10^34 pascals, the highest recorded under laboratory-controlled conditions. Using these analyses, we rule out strongly repulsive nuclear equations of state from relativistic mean field theory and weakly repulsive equations of state with phase transitions at densities less than three times that of stable nuclei, but not equations of state softened at higher densities because of a transformation to quark matter.

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