arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.3673hep-ph
收藏

从簇射普适性精确确定μ子和电磁簇射含量

Precise determination of muon and electromagnetic shower contents from shower universality property

A. Yushkov, M. Ambrosio, C. Aramo, F. Guarino, D. D'Urso, L. Valore

摘要:

我们认为两个新的方面广泛的空气簇射发展的普遍性,使准确估计μ介子和电磁(EM)簇射内容在两个独立的方式。在第一种情况下,为了在切伦科夫水槽或闪烁体探测器中获得μ子(或EM)信号,只需知道簇射最大值的垂直深度和地面探测器中的总信号。在第二种情况下,EM信号可以从初级粒子能量和天顶角计算。在这两种情况下,μ子和EM信号的参数化几乎与初级粒子的性质、能量和天顶角无关。所考虑的质量组成和强子相互作用研究的性质的影响进行了简要的讨论。本研究是在28000个质子、氧和铁簇射上进行的,这些簇射是用CORSIKA 6.735产生的,用于$E^{-1}$谱,能量范围log(E/eV)=18.5-20.0,并且在天顶角间隔θ =0-65度内均匀分布在cos^2(θ)中,用于QGSJET II/Fluka相互作用模型。

英文摘要:

We consider two new aspects of Extensive Air Shower development universality allowing to make accurate estimation of muon and electromagnetic (EM) shower contents in two independent ways. In the first case, to get muon (or EM) signal in water Cherenkov tanks or in scintillator detectors it is enough to know the vertical depth of shower maximum and the total signal in the ground detector. In the second case, the EM signal can be calculated from the primary particle energy and the zenith angle. In both cases the parametrizations of muon and EM signals are almost independent on primary particle nature, energy and zenith angle. Implications of the considered properties for mass composition and hadronic interaction studies are briefly discussed. The present study is performed on 28000 of proton, oxygen and iron showers, generated with CORSIKA 6.735 for $E^{-1}$ spectrum in the energy range log(E/eV)=18.5-20.0 and uniformly distributed in cos^2(theta) in zenith angle interval theta=0-65 degrees for QGSJET II/Fluka interaction models.

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。

↑