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arXiv physics/0407110physics.atom-ph
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用密度矩阵方法研究π介子的动力学

Dynamics of the Pionium with the Density Matrix Formalism

L Afanasyev, C Santamarina, A Tarasov, O Voskresenskaya

摘要:

在第一玻恩近似下,用密度矩阵方法求解了类氢原子$π^+ π^-$穿过物质时的演化。我们比较了标准的概率计算和更精确的密度矩阵形式主义占干扰效应之间的介子破裂概率的影响。我们集中在欧洲核子研究中心的DIRAC实验的特定条件下,我们的一般结果。

英文摘要:

The evolution of pionium, the $π^+ π^-$ hydrogen-like atom, while passing through matter is solved within the density matrix formalism in the first Born approximation. We compare the influence on the pionium break-up probability between the standard probabilistic calculations and the more precise picture of the density matrix formalism accounting for interference effects. We focus our general result in the particular conditions of the DIRAC experiment at CERN.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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