Production of hypernuclei in multifragmentation of nuclear spectator matter
Production of hypernuclei in multifragmentation of nuclear spectator matter
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DOI：
10.1103/physrevc.76.024909
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发表时间：
2007-05
影响因子：
3.1
通讯作者：
A. Botvina;J. P. Inr;Moscow;Russia.;Ik;Jagellonian University;Mainz;H Germany
中科院分区：
文献类型：
--
作者：
A. Botvina;J. P. Inr;Moscow;Russia.;Ik;Jagellonian University;Mainz;H Germany
在相对论性重离子的外围碰撞中，可以产生含有{λ}超子的高度激发的旁观者。这种奇怪的旁观者物质可能经历分裂成许多碎片（多重碎片），正如它在普通核系统中得到充分证实的那样。我们推广了统计多碎片模型，以前成功地用于描述实验数据，对于超核系统的情况。我们预测了超核的相对产量和这种分裂的主要特征。我们指出这种现象与超物质中的液气相变有关。
In peripheral collisions of relativistic heavy ions highly excited spectators containing {lambda} hyperons can be produced. Such strange spectator matter may undergo a break-up into many fragments (multifragmentation) as it is well established for ordinary nuclear systems. We generalize the statistical multifragmentation model, previously successfully used for the description of experimental data, for the case of hypernuclear systems. We predict relative yields of hypernuclei and the main characteristics of such a breakup. We point at a connection of this phenomenon with a liquid-gas phase transition in hypermatter.