First underground results with NEWAGE-0.3a direction-sensitive dark matter detector

Kentaro Miuchi; Hironobu Nishimura; Kaori Hattori; Naoki Higashi; Chihiro Ida; Satoshi Iwaki; Shigeto Kabuki; Hidetoshi Kubo; Shunsuke Kurosawa; Kiseki Nakamura; Joseph Parker; Tatsuya Sawano; Michiaki Takahashi; Toru Tanimori; Kojiro Taniue; Kazuki Ueno; Hiroyuki Sekiya; Atsushi Takeda; Ken'ichi Tsuchiya; Atsushi Takada

doi:10.1016/j.physletb.2010.02.028

First underground results with NEWAGE-0.3a direction-sensitive dark matter detector

Kentaro Miuchi, Hironobu Nishimura, Kaori Hattori, Naoki Higashi, Chihiro Ida, Satoshi Iwaki, Shigeto Kabuki, Hidetoshi Kubo, Shunsuke Kurosawa, Kiseki Nakamura, Joseph Parker, Tatsuya Sawano, Michiaki Takahashi, Toru Tanimori, Kojiro Taniue, Kazuki Ueno, Hiroyuki Sekiya, Atsushi Takeda, Ken'ichi Tsuchiya, Atsushi Takada

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

A direction-sensitive dark matter search experiment at Kamioka underground laboratory with the NEWAGE-0.3a detector was performed. The NEWAGE-0.3a detector is a gaseous micro-time-projection chamber filled with CF₄ gas at 152 Torr. The fiducial volume and target mass are 20 × 25 × 31 cm³ and 0.0115 kg, respectively. With an exposure of 0.524 kg days, improved spin-dependent weakly interacting massive particle (WIMP)-proton cross section limits by a direction-sensitive method were achieved including a new record of 5400 pb for 150 GeV/ c² WIMPs. We studied the remaining background and found that ambient γ-rays contributed about one-fifth of the remaining background and radioactive contaminants inside the gas chamber contributed the rest.

Original language	English
Pages (from-to)	11-17
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	686
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2010.02.028
Publication status	Published - 2010 Mar 15
Externally published	Yes

Keywords

Dark matter
Direction-sensitive
Micro pattern detector
Time projection chamber
WIMP

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2010.02.028

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Miuchi, K., Nishimura, H., Hattori, K., Higashi, N., Ida, C., Iwaki, S., Kabuki, S., Kubo, H., Kurosawa, S., Nakamura, K., Parker, J., Sawano, T., Takahashi, M., Tanimori, T., Taniue, K., Ueno, K., Sekiya, H., Takeda, A., Tsuchiya, K., & Takada, A. (2010). First underground results with NEWAGE-0.3a direction-sensitive dark matter detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 686(1), 11-17. https://doi.org/10.1016/j.physletb.2010.02.028

Miuchi, K, Nishimura, H, Hattori, K, Higashi, N, Ida, C, Iwaki, S, Kabuki, S, Kubo, H, Kurosawa, S , Nakamura, K, Parker, J, Sawano, T, Takahashi, M, Tanimori, T, Taniue, K, Ueno, K, Sekiya, H, Takeda, A, Tsuchiya, K & Takada, A 2010, 'First underground results with NEWAGE-0.3a direction-sensitive dark matter detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 686, no. 1, pp. 11-17. https://doi.org/10.1016/j.physletb.2010.02.028

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title = "First underground results with NEWAGE-0.3a direction-sensitive dark matter detector",

abstract = "A direction-sensitive dark matter search experiment at Kamioka underground laboratory with the NEWAGE-0.3a detector was performed. The NEWAGE-0.3a detector is a gaseous micro-time-projection chamber filled with CF4 gas at 152 Torr. The fiducial volume and target mass are 20 × 25 × 31 cm3 and 0.0115 kg, respectively. With an exposure of 0.524 kg days, improved spin-dependent weakly interacting massive particle (WIMP)-proton cross section limits by a direction-sensitive method were achieved including a new record of 5400 pb for 150 GeV/ c2 WIMPs. We studied the remaining background and found that ambient γ-rays contributed about one-fifth of the remaining background and radioactive contaminants inside the gas chamber contributed the rest.",

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author = "Kentaro Miuchi and Hironobu Nishimura and Kaori Hattori and Naoki Higashi and Chihiro Ida and Satoshi Iwaki and Shigeto Kabuki and Hidetoshi Kubo and Shunsuke Kurosawa and Kiseki Nakamura and Joseph Parker and Tatsuya Sawano and Michiaki Takahashi and Toru Tanimori and Kojiro Taniue and Kazuki Ueno and Hiroyuki Sekiya and Atsushi Takeda and Ken'ichi Tsuchiya and Atsushi Takada",

note = "Funding Information: This work was partially supported by Grant-in-Aids for KAKENHI ( 19684005 ) of Young Scientist (A); JSPS Fellows ; and Global COE Program “The Next Generation of Physics, Spun from Universality and Emergence” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan .",

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AU - Ida, Chihiro

AU - Iwaki, Satoshi

AU - Kabuki, Shigeto

AU - Kubo, Hidetoshi

AU - Kurosawa, Shunsuke

AU - Nakamura, Kiseki

AU - Parker, Joseph

AU - Sawano, Tatsuya

AU - Takahashi, Michiaki

AU - Tanimori, Toru

AU - Taniue, Kojiro

AU - Ueno, Kazuki

AU - Sekiya, Hiroyuki

AU - Takeda, Atsushi

AU - Tsuchiya, Ken'ichi

AU - Takada, Atsushi

N1 - Funding Information: This work was partially supported by Grant-in-Aids for KAKENHI ( 19684005 ) of Young Scientist (A); JSPS Fellows ; and Global COE Program “The Next Generation of Physics, Spun from Universality and Emergence” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan .

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N2 - A direction-sensitive dark matter search experiment at Kamioka underground laboratory with the NEWAGE-0.3a detector was performed. The NEWAGE-0.3a detector is a gaseous micro-time-projection chamber filled with CF4 gas at 152 Torr. The fiducial volume and target mass are 20 × 25 × 31 cm3 and 0.0115 kg, respectively. With an exposure of 0.524 kg days, improved spin-dependent weakly interacting massive particle (WIMP)-proton cross section limits by a direction-sensitive method were achieved including a new record of 5400 pb for 150 GeV/ c2 WIMPs. We studied the remaining background and found that ambient γ-rays contributed about one-fifth of the remaining background and radioactive contaminants inside the gas chamber contributed the rest.

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KW - Time projection chamber

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First underground results with NEWAGE-0.3a direction-sensitive dark matter detector

Abstract

Keywords

ASJC Scopus subject areas

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