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arXiv 0902.2459hep-ph
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高能物理学中的超统计:应用于cosmic ray能谱和e+e-湮没

Superstatistics in high energy physics: Application to cosmic ray energy spectra and e+e- annihilation

Christian Beck

摘要:

我们制定了一个超统计描述的高能量散射过程,考虑到小体积元素的温度波动。对于伽玛分布的涨落的逆温度,人们有效地获得类似于那些在非广延统计力学中使用的公式,而对于其他温度分布,更一般的超统计模型出现。我们考虑两个主要的例子:宇宙线粒子的散射过程和e+e-湮灭过程。在这两种情况下,都能得到实验测得的能谱和截面的极好拟合。

英文摘要:

We work out a superstatistical description of high-energy scattering processes that takes into account temperature fluctuations in small volume elements. For Gamma-distributed fluctuations of the inverse temperature one effectively obtains formulas similar to those used in nonextensive statistical mechanics, whereas for other temperature distributions more general superstatistical models arise. We consider two main examples: Scattering processes of cosmic ray particles and e+e- annihilation processes. In both cases one obtains excellent fits of experimentally measured energy spectra and cross sections.

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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