Probing neutron-star matter in the lab: Similarities and differences between binary mergers and heavy-ion collisions

被引:27
作者
Most, Elias R. [1 ,2 ,3 ]
Motornenko, Anton [4 ,5 ]
Steinheimer, Jan [5 ]
Dexheimer, Veronica [6 ]
Hanauske, Matthias [4 ,5 ]
Rezzolla, Luciano [4 ,5 ,7 ]
Stoecker, Horst [4 ,5 ,8 ]
机构
[1] Princeton Univ, Princeton Ctr Theoret Sci, Princeton, NJ 08544 USA
[2] Princeton Univ, Princeton Grav Initiat, Princeton, NJ 08544 USA
[3] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA
[4] Goethe Univ, Inst Theoret Phys, D-60438 Frankfurt, Germany
[5] Frankfurt Inst Adv Studies, Giersch Sci Ctr, D-60438 Frankfurt, Germany
[6] Kent State Univ, Dept Phys, Kent, OH 44243 USA
[7] Trinity Coll Dublin, Sch Math, Dublin, Ireland
[8] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany
基金
美国国家科学基金会;
关键词
QUARK-GLUON PLASMA; EQUATION-OF-STATE; RELATIVISTIC HYDRODYNAMICS; QCD; ENERGY; PERSPECTIVE; CHALLENGES; MODEL;
D O I
10.1103/PhysRevD.107.043034
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Binary neutron-star mergers and heavy-ion collisions are related through the properties of the hot and dense nuclear matter formed during these extreme events. In particular, low-energy heavy-ion collisions offer exciting prospects to recreate such extreme conditions in the laboratory. However, it remains unexplored to what degree those collisions can actually reproduce hot and dense matter formed in binary neutron star mergers. As a way to understand similarities and differences between these systems, we discuss their geometry and perform a direct numerical comparison of the thermodynamic conditions probed in both collisions. To enable a direct comparison, we employ a finite-temperature equation of state able to describe the entire high-energy phase diagram of quantum chromodynamics. Putting side by side the evolution of both systems, we find that laboratory heavy-ion collisions at the energy range of Elab1/4 0.4-0.6A MeV probe (thermodynamic) states of matter that are very similar to those created in binary neutron-star mergers. These results can inform future low-energy heavy-ion collisions probing this regime.
引用
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页数:12
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