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相对论重离子碰撞实验中混合事件方法的研究 被引量:2

A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments
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摘要 把RQMD(RelativisticQuantumMolecularDynamics)产生器产生的数据输入作为原始事例取样 ,讨论了在比较复杂的背景情况下 ,一种新的混合事件方法 ,用以证实在相对论重离子碰撞实验中高能量激发共振态的存在 .并以共振态重子Δ+ + A new mixing event method is developed in the analysis of relativistic heavy ion collision experiments with a relatively complicated background by using RQMD (Relativistic Quantum Molecular Dynamics) as input data sample. The proposed method is then applied to the study of invariant mass distribution of Δ ++ resonance as an example. A new iterative algorithm is also proven by providing the invariant mass spectra of Δ ++ 's using different algorithms for the combinatorial background subtraction.
出处 《高能物理与核物理》 CSCD 北大核心 2003年第4期349-353,共5页 High Energy Physics and Nuclear Physics
基金 国家自然科学基金(19775 0 1819975 0 2 1)资助~~
关键词 相对论重离子碰撞实验 RQMD 混合事件方法 共振态重子 不变质量分布 标度因子 RQMD, mixing event method, resonance baryon, invariant mass distribution, scale factor
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同被引文献14

  • 1明庭尧,冯笙琴.19GeV/c能量下质子-铍碰撞中领头奇异超子Λ的产生[J].三峡大学学报(自然科学版),2006,28(1):94-96. 被引量:1
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