First limit on WIMP cross section with low background CsI(Tℓ) crystal detector

H. S. Lee, H. Bhang, J. H. Choi, I. S. Hahn, D. He, M. J. Hwang, H. J. Kim, S. C. Kim, S. K. Kim, S. Y. Kim, T. Y. Kim, Y. D. Kim, J. W. Kwak, Y. J. Kwon, J. Lee, J. H. Lee, J. I. Lee, M. J. Lee, J. Li, S. S. MyungH. Park, H. Y. Yang, J. J. Zhu

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The Korea Invisible Mass Search (KIMS) Collaboration has been carrying out WIMP search experiment with CsI(Tℓ) crystal detectors at the YangYang Underground Laboratory. A successful reduction of the internal background of the crystal was done and a good pulse shape discrimination was achieved. We report the first result on WIMP search obtained with 237 kg days data using one full-size CsI(Tℓ) crystal of 6.6 kg mass.

Original languageEnglish
Pages (from-to)201-208
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2-3
Publication statusPublished - 2006 Feb 9

Bibliographical note

Funding Information:
This work is supported by the Creative Research Initiative program of the Korea Science and Engineering Foundation. We are grateful to the Korea Middleland Power Co. and the staff members of the YangYang Pumped Power Plant for their providing us the underground laboratory space.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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