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高能碰撞中的多重数分布与动力学涨落
The multiplicity distributions and dynamical fluctuations in high energy collisions
【摘要】 通过多重数分布研究EMU0 1国际实验组中高能重核束流与核乳胶相互作用中的动力学起伏的规律。引入多重数分布动力学因子dq 及其比值Dq 两个物理量来定量量度动力学涨落 ,得到了Dq 与D2 的幂次标度律 ,并且给出标度律中指数与 q - 1的标度关系 ,所得出的标度指数γ的值在各种碰撞体系中大致相同
【Abstract】 The laws of fluctuations in high energy heavy ion collisions were studied with the multiplicitydistribution of EMU01 international collaboration. The dynamical factors d q and their ratios D q≡d q/d 1 were introduced to measure dynamical fluctuations quantitatively, and power scaling law between D q and D 2 was obtained. The exponents in the scaling were shown to be power scaling with q -1, and the scaling exponent γ was about the same for various collisions systems.
【关键词】 高能重离子碰撞;
多重数分布;
动力学起伏;
【Key words】 High energy heavy ion collision; Multiplicity distribution; Dynamical fluctuation;
【Key words】 High energy heavy ion collision; Multiplicity distribution; Dynamical fluctuation;
【基金】 国家自然科学基金! (19875 0 19);湖北省自然科学基金资助
- 【文献出处】 核技术 ,Nuclear Techniques , 编辑部邮箱 ,2001年04期
- 【分类号】O572
- 【下载频次】67