| アイテムタイプ |
文献 / Documents(1) |
| 公開日 |
2026-01-19 |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
関連識別子 |
https://doi.org/10.1093/ptep/ptaf160 |
|
|
関連名称 |
10.1093/ptep/ptaf160 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Background Stability and Annual Modulation Test Using PICOLON Ultra-Pure NaI(Tl) Detector |
| 著者 |
Kotera, K.
Chernyak, D.
Ejiri, H.
伏見, 賢一
Hata, K.
Hazama, R.
Iida, T.
Ikeda, H.
Imagawa, K.
Inoue, K.
Ito, H.
Kishimoto, T.
Koga, M.
Kozlov, A.
Nakamura, K.
折戸, 玲子
Shima, T.
Takemoto, Y.
Umehara, S.
Urano, Y.
Yasuda, K.
Yoshida, S.
|
| 抄録 |
|
|
内容記述 |
The dark matter observation claimed by the DAMA/LIBRA experiment has been a long-standing puzzle within the particle physics community. NaI(Tl) crystals with radiopurity comparable to DAMA/LIBRA’s are essential for adequate verification. Existing experiments using a NaI(Tl) target have been hampered by the high radioactivity concentration of NaI(Tl) crystals. The Pure Inorganic Crystal Observatory for LOw-energy Neutr(al)ino (PICOLON) experiment conducts an independent search for Weakly Interacting Massive Particles using the highest-purity NaI(Tl) crystals. In 2020, a PICOLON NaI(Tl) crystal (Ingot#85) reached the same purity level as DAMA/LIBRA crystals. The DAMA/LIBRA group has stressed that verifying their signal requires high-purity NaI(Tl) crystals with long-term stability. Based on a six-month measurement, we have confirmed the long-term stability of its radiopurity. This stability provides a significant advantage for future efforts to adequately verify the DAMA/LIBRA result using NaI(Tl) crystals. In this paper, we present the background stability of purity in the Ingot#94 NaI(Tl) detector, which was produced using the Ingot#85 purification method, along with the first annual modulation search conducted by the PICOLON experiment. |
| 書誌情報 |
en : Progress of Theoretical and Experimental Physics
巻 2025,
号 12,
p. 123F01,
発行日 2025-11-13
|
| 収録物ID |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
20503911 |
| 出版者 |
|
|
出版者 |
The Physical Society of Japan |
| 出版者 |
|
|
出版者 |
Oxford University Press |
| 権利情報 |
|
|
権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
Creative Commons Attribution 4.0 International |
| EID |
|
|
識別子 |
458711 |
| 言語 |
|
|
言語 |
eng |
ptep_2025_12_123F01.pdf (1.5 MB)
.png)
