Results of a directional dark matter search from the NEWAGE experiment

被引：3

作者：

Ikeda, T. ^{[1
]}

Miuchi, K. ^{[1
]}

Hashimoto, T. ^{[1
]}

Ishiura, H. ^{[1
]}

Nakamura, T. ^{[1
]}

Shimada, T. ^{[1
]}

Nakamura, K. ^{[1
]}

机构：

[1] Kobe Univ, Dept Phys, Rokkodaicho, Nada Hyogo 6578501, Japan

来源：

16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019) | 2020年 / 1468卷

基金：

日本学术振兴会;

关键词：

D O I：

10.1088/1742-6596/1468/1/012042

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this study we present the results of a directional dark matter search from the NEWAGE experiment. A low-background gaseous detector, namely a low alpha-ray emitting mu-PIC (LA mu-PIC), was developed. The LA mu-PIC was installed in Kamioka Observatory and the NEWAGE-0.3" detector with a detection volume of 37 L was operated from June to November 2018. A total exposure of 1.1 kg.days was obtained and a reduction of background by 30 times comparing with a previous result was confirmed. The remaining backgrounds were studied using a Monte Carlo simulation. The main background in the energy region of 50 <= E <= 100 keV was found to be alpha-rays emitted from the surface of the LA mu-PIC.

引用

页数：4

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