利用Glauber模型,给出了核-核碰撞中的参与者数及二元核子-核子碰撞数与碰撞参数的解析关系,并以此为基础,在考虑到参与者由于多重碰撞而引起的能量损失效应后,通过有效二元核子-核子碰撞末态带电粒子赝快度分布的加权叠加,建立起了以碰撞参数为自变量的核-核碰撞末态带电粒子的赝快度分布函数,并用其分析了RHIC-PHOBOS合作组在不同能量与不同对心度的Cu+Cu碰撞中所做的实验测量.所得结果与实验符合得较好.
参考文献
| [1] | Bjorken J D.Phys Rev,1983,1327:140. |
| [2] | Munzinger B P,Stachel J,Wessels J P,et al.Phys Lett,1995,B344:43. |
| [3] | Munzinger B P,Staehel J,Wessels J P,et al.Phys Lett,1995,B365:1. |
| [4] | LiQ,Jiang Z J,Xia H F.Acta Phys Sic,2006,55:5161(in Chinese).(李强,姜志进,夏宏福.物理学报,2007,55:5161). |
| [5] | Satz H.Nucl Phys,2003,A715:3c. |
| [6] | Back B B,Baker M D,Barton D S,et al (PHOBOS Collaboration).Phys Rev Lett,2003,91:052303. |
| [7] | Back BB,Baker M D,Ballintijn M,et al (PHOBOS Collaboration).Phys Rev Lett,2005,94:082304. |
| [8] | Alver B,Bach B B,Baker M D,et al (PHOBOS Collaboration).Phys Rev Lett,2006,96:212301. |
| [9] | Back BB,Baker M D,Ballintijn M,et al (PHOBOS Collaboration).Nucl Phys,2005,A757:28. |
| [10] | Back B B,Baker M D,Ballintijn M,et al (PHOBOS Collaboration).Phya Rev Lett,2009,102:142301. |
| [11] | Wong C Y.Phys Rev,2008,C78:054902. |
| [12] | Ryblewski R,Florkowski W.Phys Rev,2008,C77:064906. |
| [13] | Liu L S,Meng T C.Phys Rev,1983,D27:2640. |
| [14] | Chou K C,Liu L S,Meng T C.Phys Rev,1983,D28:1080. |
| [15] | Liu F H.Phys Rev,2002,C66:047902. |
| [16] | Liu F H.Chin Phys,2008,B17:883. |
| [17] | Hwa R C,Yang C B,Fries R J.Phys Rev,2005,C71:024902. |
| [18] | Shao F L,Yao T,Xie Q B.Phys Rev,2007,C75:034904. |
| [19] | Sorge H.Phys Rev,1995,C52:3291. |
| [20] | Sa B H,Cai X,Su Z D,et al.Phys Rev,2002,C66:044902. |
| [21] | Wang Z W,Jiang Z J.Chin Phys C,2009,33:274. |
| [22] | Jiang Z J.Acts Phys Sic,2007,56:5191(in Chinese).(姜志进.物理学报,2007,56:5191). |
| [23] | Glauber R J.In Lectures in Theoretical Physics (New York),1959,315. |
| [24] | Wong C Y.Introduction to High-energy Heavy-ion Collisions.Haerbin:Harbin Institute of Technology Press,2002,222(in Chinese).(黄卓然.高能重离子碰撞导论.哈尔滨:哈尔滨工业大学出版社,2002,222.) |
| [25] | Wong C Y.Phys Rev,1984,D30:961. |
| [26] | Adler S S,Afanasiev S,Aidala C,et al (PHENIX Collaboration),arXiv:0307022vl[nucl-ex],2003. |
| [27] | Alner G J,Ansorge R E,(A)sman B,et al (UA5 Collaboration).Z Phys,1986,C33:1. |
| [28] | Busza W.Acts Phys Pol,2004,B35:2873. |
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