Automatic track recognition for large-angle minimum ionizing particles in nuclear emulsions

被引：13

作者：

Fukuda, T. ^{[1
]}

Fukunaga, S. ^{[1
]}

Ishida, H. ^{[1
]}

Matsumoto, T. ^{[1
]}

Matsuo, T. ^{[1
]}

Mikado, S. ^{[2
]}

Nishimura, S. ^{[1
]}

Ogawa, S. ^{[1
]}

Shibuya, H. ^{[1
]}

Sudou, J. ^{[1
]}

Ariga, A. ^{[3
]}

Tufanli, S. ^{[3
]}

机构：

[1] Toho Univ, Fundamental Phys Lab, Funabashi, Chiba 2748510, Japan

[2] Nihon Univ, Narashino, Chiba 2758576, Japan

[3] Univ Bern, LHEP, CH-3012 Bern, Switzerland

来源：

JOURNAL OF INSTRUMENTATION | 2014年 / 9卷

基金：

日本学术振兴会;

关键词：

Performance of High Energy Physics Detectors; Particle tracking detectors (Solid-state detectors); Data acquisition concepts; CHARMED PARTICLES; PAIR DECAY; PROTON;

D O I：

10.1088/1748-0221/9/12/P12017

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We previously developed an automatic track scanning system which enables the detection of large-angle nuclear fragments in the nuclear emulsion films of the OPERA experiment. As a next step, we have investigated this system's track recognition capability for large-angle minimum ionizing particles (1.0 <= vertical bar tan theta vertical bar <= 3.5). This paper shows that, for such tracks, the system has a detection efficiency of 95% or higher and reports the achieved angular accuracy of the automatically recognized tracks. This technology is of general purpose and will likely contribute not only to various analyses in the OPERA experiment, but also to future experiments, e.g. on low-energy neutrino and hadron interactions, or to future research on cosmic rays using nuclear emulsions carried by balloons.

引用

页数：12

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