Tau energy losses at ultrahigh energy: Continuous versus stochastic treatment
Tau energy losses at ultrahigh energy: Continuous versus stochastic treatment
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超高能量下的 Tau 能量损失：连续处理与随机处理
DOI：
10.1103/physrevd.77.103004
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发表时间：
2008
影响因子：
5
通讯作者：
V. Elewyck
中科院分区：
文献类型：
--
作者：
O. B. Bigas;O. Deligny;K. Payet;V. Elewyck
我们通过超高能量的电磁过程研究物质中 tau 轻子的能量损失。我们使用随机和连续框架来处理这些相互作用，并比较经过一定量物质传播的 tau 轻子的通量。我们通过研究单能和幂律注入光谱在标准岩石中的传播来讨论连续能量损失近似的准确性。尽管辐射过程的随机性质引入了波动，但我们表明连续近似会导致幂律注入光谱的相同结果。
We study the energy losses of the tau lepton in matter through electromagnetic processes at ultrahigh energy. We use both a stochastic and a continuous framework to treat these interactions and compare the flux of tau leptons propagated after some amount of matter. We discuss the accuracy of the approximation of continuous energy losses by studying the propagation in standard rock of taus with both monoenergetic and power-law injection spectra. Despite fluctuations introduced by the stochastic nature of the radiative processes, we show that the continuous approximation leads to the same results for power-law injection spectra.