Determination of the Photon Detection Efficiency, Time and Spatial Resolution of the Light Collecting System of the near Liquid Argon Detector (ND-LAr) of the DUNE Experiment

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI:10.1134/S1547477124700870

P. I. Lenskii, A. V. Chukanov

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Abstract

DUNE is a long-baseline experiment for neutrino oscillation studies. Its near detector complex consists of three main parts. One of them is ND-LAr, the liquid argon time projection chamber (LAr-TPC). In LAr-TPC’s, a light collecting system (LCS) is commonly used as a trigger system. In this work the ND-LAr LCS is considered. The data from ProtoDUNE Dual Phase and Module 0 LAr-TPC prototypes was used to obtain the parameters of scintillation in liquid argon for Geant4 simulation. Then, the response of the Module 0 LCS in events with cosmic muons was compared with the response of its Geant4 model in identical simulated events to estimate the photon detection efficiency of the ND-LAr LCS. After that, single-particle and two-particle events with different shifts in time and space between tracks were simulated to determine the time and spatial resolution of the ND-LAr LCS. Obtained results allow us to judge whether the characteristics of the ND-LAr LCS satisfy the experiment requirements.

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确定 DUNE 试验的近液态氩探测器（ND-LAr）光收集系统的光子探测效率、时间和空间分辨率

DUNE 是一个用于中微子振荡研究的长基线实验。其近探测器综合体由三个主要部分组成。其中之一是 ND-LAr，即液态氩时间投影室（LAr-TPC）。在液氩时间投影室中，通常使用光收集系统（LCS）作为触发系统。本研究考虑使用 ND-LAr LCS。利用 ProtoDUNE 双相和模块 0 LAr-TPC 原型的数据来获取液氩中的闪烁参数，以便进行 Geant4 模拟。然后，将模块 0 LCS 在宇宙μ介子事件中的响应与其 Geant4 模型在相同模拟事件中的响应进行比较，以估算 ND-LAr LCS 的光子探测效率。随后，模拟了轨道之间具有不同时间和空间偏移的单粒子和双粒子事件，以确定 ND-LAr LCS 的时间和空间分辨率。获得的结果使我们能够判断 ND-LAr LCS 的特性是否满足实验要求。

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来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.