Implementation of an upward-going muon trigger for indirect dark matter searches at the NOvA far detector

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Mina, R.^1 ; Frank, M.J.^1 ; Fries, E.^1 ; Group, R.C.^1,2 ; Norman, A.^2 ; Oksuzian, I.^1

University of Virginia, Charlottesville

VA, United States^1

Fermilab National Accelerator Laboratory, Batavia

IL, United States^2

关键词: Cosmic Ray Background;    Cosmic-ray muons;    Dark matter searches;    Electron neutrino;    Energy resolutions;    Low energy neutrinos;    Neutrino beams;    Off-axis angles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/8/082034/pdf
DOI  :  10.1088/1742-6596/664/8/082034

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The NOvA collaboration has constructed a 14,000 ton, fine-grained, low-Z, total absorption tracking calorimeter at an off-axis angle to an upgraded NuMI neutrino beam. This detector, with its excellent granularity and energy resolution and relatively low-energy neutrino thresholds, was designed to observe electron neutrino appearance in a muon neutrino beam, but it also has unique capabilities suitable for more exotic efforts. In fact, if an efficient upward- going muon trigger with sufficient cosmic ray background rejection can be demonstrated, NOvA will be capable of a competitive indirect dark matter search for low-mass WIMPs. The cosmic ray muon rate at the NOvA far detector is about 100 kHz and provides the primary challenge for triggering and optimizing such a search analysis. The status of the NOvA upward-going muon trigger is presented.