论文标题
单字符串结构和多个字符串互动对$ \ sqrt {s_ {nn}} = 2.76 $ tev的pb+pb碰撞中陌生产生的影响
Impact of single string structure and multiple string interaction on strangeness production in Pb+Pb collisions at $\sqrt{S_{NN}} = 2.76$ TeV
论文作者
论文摘要
我们提出了一项系统的研究，该研究对$ \ sqrt {s_ {nn}} = 2.76 $ tev的PB+PB碰撞中的奇怪和多晶体粒子产生基于PACIAE模型模拟。模拟中实现了两种不同的机制，即单字符串结构变化和多个字符串相互作用。这些修改导致了符号弦碎片框架中涉及的字符串张力值的增强，并在Hadronic最终状态下产生了更多奇怪的粒子。通过将仿真结果与爱丽丝实验数据进行比较，事实证明，在Paciae模型中包含可变有效的弦乐张力可以在PB+PB碰撞中对理论和实验之间达成改进的一致性。
We present a systematic study on the strange and multi-strange particles production in Pb+Pb collisions at $\sqrt{S_{NN}} = 2.76$ TeV based on the PACIAE model simulations. Two different mechanisms, namely the single string structure variations and multiple string interactions, are implemented in the simulations. These modifications give rise to an enhancement of the string tension value involved in the Lund string fragmentation framework and generate more strange particles in the hadronic final state. By comparing the simulation results with the ALICE experimental data, it turns out that the inclusion of the variable effective string tension in the PACIAE model is capable to reach an improved agreement between theory and experiment on the strangeness production in Pb+Pb collisions.
