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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Search for a Dark Matter-Induced Annual Modulation Signal in NaI(Tl) with the COSINE-100 Experiment

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Author(s):
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Adhikari, G. [1] ; Adhikari, P. [2, 1] ; de Souza, E. Barbosa [3, 4] ; Carlin, N. [5] ; Choi, S. [6] ; Djamal, M. [7] ; Ezeribe, A. C. [8] ; Ha, C. [9] ; Hahn, I. S. [10] ; Jeon, E. J. [9] ; Jo, J. H. [3, 4] ; Joo, H. W. [6] ; Kang, W. G. [9] ; Kang, W. [11] ; Kauer, M. [12, 13] ; Kim, G. S. [14] ; Kim, H. [9] ; Kim, H. J. [14] ; Kim, K. W. [9] ; Kim, N. Y. [9] ; Kim, S. K. [10] ; Kim, Y. D. [1, 9, 15] ; Kim, Y. H. [16, 9, 15] ; Ko, Y. J. [9] ; Kudryavtsev, V. A. [8] ; Lee, H. S. [9, 15] ; Lee, J. [9] ; Lee, J. Y. [14] ; Lee, M. H. [9, 15] ; Leonard, D. S. [9] ; Lynch, W. A. [8] ; Maruyama, R. H. [3, 4] ; Mouton, F. [11] ; Olsen, S. L. [9] ; Park, B. J. [15] ; Park, H. K. [17] ; Park, H. S. [16] ; Park, K. S. [9] ; Pitta, R. L. C. [5] ; Prihtiadi, H. [7] ; Ra, S. J. [9] ; Rott, C. [11] ; Shin, K. A. [9] ; Scarff, A. [8] ; Spooner, N. J. C. [8] ; Thompson, W. G. [3, 4] ; Yang, L. [18] ; Yu, G. H. [11] ; Collaboration, COSINE-100
Total Authors: 49
Affiliation:
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[1] Sejong Univ, Dept Phys, Seoul 05006 - South Korea
[2] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6 - Canada
[3] Yale Univ, Dept Phys, New Haven, CT 06520 - USA
[4] Yale Univ, Wright Lab, New Haven, CT 06520 - USA
[5] Univ Sao Paulo, Phys Inst, BR-05508090 Sao Paulo - Brazil
[6] Seoul Natl Univ, Dept Phys & Astron, Seoul 08826 - South Korea
[7] Bandung Inst Technol, Dept Phys, Bandung 40132 - Indonesia
[8] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire - England
[9] Inst for Basic Sci Korea, Ctr Underground Phys, Daejeon 34126 - South Korea
[10] Ewha Womans Univ, Dept Sci Educ, Seoul 03760 - South Korea
[11] Sungkyunkwan Univ, Dept Phys, Suwon 16419 - South Korea
[12] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 - USA
[13] Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI - USA
[14] Kyungpook Natl Univ, Dept Phys, Daegu 41566 - South Korea
[15] Univ Sci & Technol, IBS Sch, Daejeon 34113 - South Korea
[16] Korea Res Inst Stand & Sci, Daejeon 34113 - South Korea
[17] Korea Univ, Dept Accelerator Sci, Sejong 30019 - South Korea
[18] Univ Illinois, Dept Phys, Urbana, IL 61801 - USA
Total Affiliations: 18
Document type: Journal article
Source: Physical Review Letters; v. 123, n. 3 JUL 16 2019.
Web of Science Citations: 4
Abstract

We present new constraints on the dark matter-induced annual modulation signal using 1.7 years of COSINE-100 data with a total exposure of 97.7 kg yr. The COSINE-100 experiment, consisting of 106 kg of NaI(Tl) target material, is designed to carry out a model-independent test of DAMA/LIBRA's claim of WIMP discovery by searching for the same annual modulation signal using the same NaI(Tl) target. The crystal data show a 2.7 cpd/kg/keV background rate on average in the 2-6 keV energy region of interest. Using a chi-squared minimization method we observe best fit values for modulation amplitude and phase of 0.0092 +/- 0.0067 cpd/kg/keV and 127.2 +/- 45.9 d, respectively. (AU)

FAPESP's process: 17/02952-0 - Search for dark matter: WIMPs and dark photons
Grantee:Nelson Carlin Filho
Support Opportunities: Regular Research Grants