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arXiv 1104.3182astro-ph.IMastro-ph.HE
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大范围空气簇射减薄模拟

Dethinning Extensive Air Shower Simulations

B. T. Stokes, R. Cady, D. Ivanov, J. N. Matthews, G. B. Thomson

摘要:

我们描述了一种方法,用于恢复大量的空气簇射模拟统计稀疏过程中丢失的信息。通过将加权粒子从稀疏模拟转换为具有相似特性的粒子群,我们获得了与稀疏簇射基本相同的结果,并且与非稀疏簇射模拟非常相似。我们称这种方法为细化。由于不切实际的CPU时间要求,不可能大规模使用非稀疏的簇射,但使用已减稀疏的稀疏簇射,可以对探测器对超高能宇宙射线表面阵列的响应进行大规模模拟研究。详细描述了去稀化方法,并与母体稀化簇射和非稀化簇射进行了比较。

英文摘要:

We describe a method for restoring information lost during statistical thinning in extensive air shower simulations. By converting weighted particles from thinned simulations to swarms of particles with similar characteristics, we obtain a result that is essentially identical to the thinned shower, and which is very similar to non-thinned simulations of showers. We call this method dethinning. Using non-thinned showers on a large scale is impossible because of unrealistic CPU time requirements, but with thinned showers that have been dethinned, it is possible to carry out large-scale simulation studies of the detector response for ultra-high energy cosmic ray surface arrays. The dethinning method is described in detail and comparisons are presented with parent thinned showers and with non-thinned showers.

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