CAJ | 학술논문

利用强子和串级联模型LUCIAE研究了PHOBOS的极限碎裂等以及在PHIC进行的Au+Au碰撞中带电粒子多重性的经验标度规律.对φ介子的产生机制也通过与带电粒子多重性的比较进行类似的研究.结果似乎表明在串级碎裂模型中带电粒子和φ介子有共同的产生机制.还讨论了PHOBOS经验标度规律的模型依赖性.
이용강자화천급련모형LUCIAE연구료PHOBOS적겁한쇄렬등이급재PHIC진행적Au+Au팽당중대전입자다중성적경험표도규률.대φ개자적산생궤제야통과여대전입자다중성적비교진행유사적연구.결과사호표명재천급쇄렬모형중대전입자화φ개자유공동적산생궤제.환토론료PHOBOS경험표도규률적모형의뢰성.
The PHOBOS's limiting fragmentation etc.three empirical scaling rules for charged multiplicity in Au+Au collisions at RHIC are investigated by a hadron and string cascade model LUCIAE.Similar studies are performed for the φ meson exploring its production mechanism via comparing with the charged multiplicity.The LUCIAE results for charged multiplicity are compatible with PHOBOS observations.However,for the φ meson the three empirical scaling rules are either kept only or kept better in the LUCIAE calculations without reduction mechanism of the s quark suppression extra introduced for the strangeness in LUCIAE model.These results seem indicating a universal production mechanism for charged particle and φ meson in string fragmentation regime.It is discussed that the PHOBOS's empirical scaling rules are model dependent indeed.