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首页> 外文期刊>Physical review, C >Multisite event discrimination for the MAJORANA DEMONSTRATOR
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Multisite event discrimination for the MAJORANA DEMONSTRATOR

机译:Majorana Sextarator的多站点歧视

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摘要

The MAJORANA DEMONSTRATOR is searching for neutrinoless double-beta decay (0 nu beta beta) in Ge-76 using arrays of point-contact germanium detectors operating at the Sanford Underground Research Facility. Background results in the 0 nu beta beta region of interest from data taken during construction, commissioning, and the start of full operations have been recently published. A pulse shape analysis cut applied to achieve this result, named AvsE, is described in this paper. This cut is developed to remove events whose waveforms are typical of multisite energy deposits while retaining (90 +/- 3.5)% of single-site events. This pulse shape discrimination is based on the relationship between the maximum current and energy, and tuned using Th-228 calibration source data. The efficiency uncertainty accounts for variation across detectors, energy, and time, as well as for the position distribution difference between calibration and 0 nu beta beta events, established using simulations.
机译:Majorana Sextsator正在使用在桑福德地下研究设施上运营的点接触锗探测器阵列来搜索GE-76中的Nevirinol Double-Beta衰减(0 NU Beta Beta)。 背景结果在施工,调试期间拍摄的数据拍摄的数据中的0 Nu Beta Beta区域,并最近发表了完整操作的开始。 本文描述了应用于实现AVSE的脉冲形状分析,以实现其命名为AVSE。 这种剪切是开发的,以删除波形是多路能量存款的典型事件,同时保留(90 +/- 3.5)的单站点事件。 该脉冲形状辨别基于最大电流和能量之间的关系,并使用TH-228校准源数据进行调谐。 效率不确定性占据探测器,能量和时间的变化,以及使用模拟建立的校准和0 NU Beta Beta事件之间的位置分布差异。

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  • 来源
    《Physical review, C》 |2019年第6期|共8页
  • 作者单位

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Pacific Northwest Natl Lab Richland WA 99352 USA;

    Univ South Carolina Dept Phys &

    Astron Columbia SC 29208 USA;

    Kurchatov Inst Inst Theoret &

    Expt Phys Natl Res Ctr Moscow Russia;

    Univ South Dakota Dept Phys Vermillion SD USA;

    Queens Univ Dept Phys Engn Phys &

    Astron Kingston ON Canada;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    South Dakota Sch Mines &

    Technol Rapid City SD USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Lawrence Berkeley Natl Lab Nucl Sci Div Berkeley CA USA;

    South Dakota Sch Mines &

    Technol Rapid City SD USA;

    Los Alamos Natl Lab Los Alamos NM USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Osaka Univ Res Ctr Nucl Phys Ibaraki Japan;

    Los Alamos Natl Lab Los Alamos NM USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Princeton Univ Dept Phys Princeton NJ 08544 USA;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    MIT Dept Phys Cambridge MA 02139 USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Univ South Carolina Dept Phys &

    Astron Columbia SC 29208 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Lawrence Berkeley Natl Lab Nucl Sci Div Berkeley CA USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Pacific Northwest Natl Lab Richland WA 99352 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Black Hills State Univ Dept Phys Spearfish SD 57799 USA;

    Tennessee Technol Univ Cookeville TN USA;

    Kurchatov Inst Inst Theoret &

    Expt Phys Natl Res Ctr Moscow Russia;

    Pacific Northwest Natl Lab Richland WA 99352 USA;

    Univ Tennessee Dept Phys &

    Astron Knoxville TN 37996 USA;

    Queens Univ Dept Phys Engn Phys &

    Astron Kingston ON Canada;

    Los Alamos Natl Lab Los Alamos NM USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Max Planck Inst Phys &

    Astrophys Munich Germany;

    Lawrence Berkeley Natl Lab Nucl Sci Div Berkeley CA USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Queens Univ Dept Phys Engn Phys &

    Astron Kingston ON Canada;

    Lawrence Berkeley Natl Lab Nucl Sci Div Berkeley CA USA;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Triangle Univ Nucl Lab Durham NC 27706 USA;

    Los Alamos Natl Lab Los Alamos NM USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    Joint Inst Nucl Res Dubna Russia;

    Univ South Carolina Dept Phys &

    Astron Columbia SC 29208 USA;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    Joint Inst Nucl Res Dubna Russia;

    Los Alamos Natl Lab Los Alamos NM USA;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    Univ Washington Ctr Expt Nucl Phys &

    Astrophys Seattle WA 98195 USA;

    Univ South Dakota Dept Phys Vermillion SD USA;

    Joint Inst Nucl Res Dubna Russia;

    Oak Ridge Natl Lab Oak Ridge TN USA;

    Kurchatov Inst Inst Theoret &

    Expt Phys Natl Res Ctr Moscow Russia;

    Joint Inst Nucl Res Dubna Russia;

    Los Alamos Natl Lab Los Alamos NM USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
  • 关键词

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