Determination of the equation of state of dense matter

被引：1318

作者：

Danielewicz, P

Lacey, R

Lynch, WG ^{[1
]}

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[4] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

来源：

SCIENCE | 2002年 / 298卷 / 5598期

关键词：

D O I：

10.1126/science.1078070

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1592 / 1596

页数：5

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