Relativistic ion collisions as the source of hypernuclei

被引:5
|
作者
Botvina, A. S. [1 ,2 ]
Bleicher, M. [1 ]
Pochodzalla, J. [3 ,4 ,5 ]
Steinheimer, J. [1 ]
机构
[1] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany
[2] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
[3] Johannes Gutenberg Univ Mainz, Helmholtz Inst Mainz, D-55099 Mainz, Germany
[4] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[5] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany
关键词
NEUTRON-STAR MATTER; SPECTROSCOPY; PHYSICS; PROJECT; TARGET; DECAY;
D O I
10.1140/epja/i2016-16242-7
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We shortly review the theory of hypernuclei production in relativistic ion collisions, that is adequate to future experiments at BM@N, NICA, and FAIR. Within a hybrid approach we use transport, coalescence and statistical models to describe the whole process. We demonstrate that the origin of hypernuclei can be explained by typical baryon interactions, that is similar to the production of conventional nuclei. In particular, heavy hypernuclei are coming mostly from projectile and target residues, whereas light hypernuclei can be produced at all rapidities. The yields of hypernuclei increase considerably above the energy threshold for. hyperon production, and there is a tendency to saturation of yields of hypernuclei with increasing the beam energy up to few TeV. There are unique opportunities in relativistic ion collisions which are difficult to realize in traditional hypernuclear experiments: The produced hypernuclei have a broad distribution in masses and isospin. They can even reach beyond the neutron and proton driplines and that opens a chance to investigate properties of exotic hypernuclei. One finds also the abundant production of multi-strange nuclei, of bound and unbound hypernuclear states with new decay modes. In addition, we can directly get an information on the hypermatter both at high and low temperatures.
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页数:9
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