重离子反应中介子产生的观测对于认识重离子反应动力学和核物质性质具有重要的意义. 讨论了重离子反应中阈能附近介子产生的一些特点和研究现状, 特别讨论了π介子产生和K+介子产生. 在我国兰州重离子冷却储存环上开展这方面的实验研究具有可能性, 可望得到很有意义的结果. 及时开展这方面实验研究和相应的理论研究是必要的.
参考文献
| [1] | Stock R, Particle Productions in High Energy Nucleus-nucleus Collisions [J]. Phys Rep, 1986, 135: 259. |
| [2] | Aichelin J. "Quantum" Molecular Dynamics: A dynamical microscopic n-body approach to investigate fragment formation and the nuclear equation of state in heavy ion collisions [J]. Phys Rep, 1991, 202: 233. |
| [3] | Wagner A, Muentz C, Oeschler H, et al. Evidence for Different Freeze-out Radii of High- and Low-energy Pions Emitted in Au+Au Collisions at 1 A GeV [J]. Phys Rev Lett, 2001, 86: 39. |
| [4] | Wagner A, Muentz C, Oeschler H, et al. Emission Partern of High-energy Pions: A new probe for the early phase of heavy ion collisions[J]. Phys Rev Lett, 2000, 85: 18. |
| [5] | Averbeck R, Holzmann R, Metag V, et al. Neutral Pions and Eta Mesons as Probes of the Hadronic Fireball in Nucleus-nucleus Collisions Around 1 A GeV, nucl-ex/0012007. |
| [6] | Buescher M, Loffe B L, Koptev V, et al. Phenomenological Analysis of K+ Meson Production in Proton-nucleus Collisions [J]. Phys Rev, 2002, C65: 014603. |
| [7] | Efremov S V, Parvev E Ya. Subthreshold K+ Meson Production in Proton-nucleus Reactions [J]. Eur Phys J, 1998, A1: 99. |
| [8] | Li G Q, Lee C-H, Brown G E. Kaons in Dense Matter, Kaon Production in Heavy-ion Collisions, and Kaon Condensation in Neutron Stars [J]. Nucl Phys, 1997, A625: 372. |
| [9] | Li G Q, Ko C M. Subthreshold Kaon Production and the Nuclear Eqution of State [J]. Phys Lett, 1995, B349: 405. |
| [10] | Sturm C, Boettchler I, Debowski M, et al. Evidence for a Soft Nuclear Equation-of-state from Kaon Production in Heavy Ion Collisions[J]. Phys Rev Lett, 2001, 86: 39. |
| [11] | Helmut Oeschler. Review of SIS Experimental Results on Strangeness [J]. J Phys, 2001, G27: 257. |
| [12] | Laue F, Sturn C, Boettchler I, et al. Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies [J]. Phys Rev Lett, 1999, 82: 1 640. |
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%