Shower fractal dimension analysis in a highly-granular calorimeter

2nd International Conference on Mathematical Modeling in Physical Sciences 2013

物理学;数学

Ruan, Manqi^1,2

Institute of High Energy Physics, Beijing, China^1

Laboratoire Leprince-Ringuet, École Polytechnique, CNRS/IN2P3, Palaiseau, France^2

关键词: Fractal dimension analysis;    Logarithmic dependence;    New approaches;    Particle energy;    Particle identifications;    Readout channels;    Spatial scale;    Strong correlation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/490/1/012227/pdf
DOI  :  10.1088/1742-6596/490/1/012227

来源: IOP

【 摘 要 】

We report on an investigation of the self-similar structure of particle showers recorded at a highly-granular calorimeter. On both simulated and experimental data, a strong correlation between the number of hits and the spatial scale of the readout channels is observed, from which we define the shower fractal dimension. The measured fractal dimension turns out to be strongly dependent on particle type, which enables new approaches for particle identification. A logarithmic dependence of the particle energy on the fractal dimension is also observed.