在核吸收与随动者吸收理论的基础上,给出了在有QGP相变情况下高能重离子碰撞中的J/Ψ微分产生截面,并用其讨论了CERN的NA50合作组给出的入射动量为158 AGeV/c的Pb-Pb碰撞中的J/Ψ反常抑制现象。理论较好地解释了实验结果。
On the basis of nuclear and comover absorption theories,we have derived out the differential cross section of J/Ψ production in high-energy heavy-ion collisions under the situation that QGP phase transition occurs,and analyzed the experimental data of NA50 Collaboration at CERN in Pb-Pb collisions at 158 AGeV/c.Our theory favors the data well.
参考文献
| [1] | MatsuiT, Satz H. PhysLett, 1986, B178: 416. |
| [2] | Satz H. Rep Prog Phys, 2000, 63: 1511. |
| [3] | 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,2002,310-344. |
| [4] | Abreu M C, Alessandro B, Alexa C, et al (NA50 Collaboration). Phys Lett, 2000, B477: 28. |
| [5] | Blaizot J P, Ollitrault J Y. Phys Rev Lett, 1996, 77: 1703. |
| [6] | Blaizot J P, Dinh P M, Ollitrault J Y. Phys Rev Lett, 2000, 85 : 4012. |
| [7] | 李强,姜志进,夏宏福.物理学报,2006,55:5161. |
| [8] | Capella A, Ferreiro E G, Kaidalov A B. Phys Rev Lett, 2000, 85: 2080. |
| [9] | Armesto N, Capella A, Ferreiro E G, et al. Nucl Phys, 2002, A698: 583c. |
| [10] | Capella A, Casado J A, Pajares C. Phys Lett, 1988, B206: 354. |
| [11] | Gerschel C, Hufner J. Z Phys, 1992, C56: 171. |
| [12] | Maiani L, Piccinini F, Polosa A D, et al. Nucl Phys, 2005, A748 : 209. |
| [13] | Werner K. Phys Rep, 1993, 232: 87. |
| [14] | 姜志进.物理学报,2004,53:1020. |
| [15] | Liu F H, Ma Y Q, ,Duan M Y. Chin Phys, 2005, 14: 2458. |
| [16] | Eremin S, Voloshin S. Phys Rev, 2003, C67: 064905. |
| [17] | Netrakanti P K, Mohanty B. Phys Rev, 2004, C70: 027901. |
| [18] | Zhang B, Johnson D L. Nucl Phys, 2004, A741: 305. |
| [19] | Baglin C, Baldisseri A, Bussiere A, et al. (NA38 Collaboration). Phys Lett, 1991, B255: 459. |
| [20] | Gavin S, Vogt R. Nucl Phys, 1996, A610: 442. |
| [21] | Bjorken J D. Phys Rev, 1983, D27: 140. |
| [22] | Tomaaik B, Wiedemann U A. Phys Rev, 2003, C68: 034905. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%