EVIDENCE FOR A SOFT NUCLEAR-MATTER EQUATION OF STATE

被引：228

作者：

SIEMENS, PJ

KAPUSTA, JI

机构：

[1] On leave from the Niels Bohr Institute, University of Copenhagen, Copenhagen

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.43.1486

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The entropy of the fireball formed in central collisions of heavy nuclei at center-of-mass kinetic energies of a few hundred MeV per nucleon is estimated from the ratio of deuterons to protons at large transverse momentum. The observed paucity of deuterons suggests that strong attractive forces are present in hot, dense nuclear matter, or that degrees of freedom beyond the nucleon and pion may already be realized at an excitation energy of 100 MeV per baryon. © 1979 The American Physical Society.

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页码：1486 / 1489

页数：4

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