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

(COSINE-100 Collaboration)

doi:10.1103/PhysRevLett.123.031302

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

(COSINE-100 Collaboration)

Sejong University
Carleton University
Yale University
Universidade de São Paulo
Seoul National University
Bandung Institute of Technology
University of Sheffield
Institute for Basic Science
Ewha Womans University
Sungkyunkwan University
University of Wisconsin-Madison
Kyungpook National University
University of Science and Technology UST
Korea Research Institute of Standards and Science
Korea University
University of Illinois at Urbana-Champaign

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

104 Scopus citations

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 χ-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.

Original language	English
Article number	031302
Journal	Physical Review Letters
Volume	123
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.123.031302
State	Published - 16 Jul 2019

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10.1103/PhysRevLett.123.031302

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@article{cb2caf395ab642c49af62b7ee0add3b2,

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

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 χ-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.",

author = "\{(COSINE-100 Collaboration)\} and G. Adhikari and P. Adhikari and \{De Souza\}, \{E. Barbosa\} and N. Carlin and S. Choi and M. Djamal and Ezeribe, \{A. C.\} and C. Ha and Hahn, \{I. S.\} and Jeon, \{E. J.\} and Jo, \{J. H.\} and Joo, \{H. W.\} and Kang, \{W. G.\} and W. Kang and M. Kauer and Kim, \{G. S.\} and H. Kim and Kim, \{H. J.\} and Kim, \{K. W.\} and Kim, \{N. Y.\} and Kim, \{S. K.\} and Kim, \{Y. D.\} and Kim, \{Y. H.\} and Ko, \{Y. J.\} and Kudryavtsev, \{V. A.\} and Lee, \{H. S.\} and J. Lee and Lee, \{J. Y.\} and Lee, \{M. H.\} and Leonard, \{D. S.\} and Lynch, \{W. A.\} and Maruyama, \{R. H.\} and F. Mouton and Olsen, \{S. L.\} and Park, \{B. J.\} and Park, \{H. K.\} and Park, \{H. S.\} and Park, \{K. S.\} and Pitta, \{R. L.C.\} and H. Prihtiadi and Ra, \{S. J.\} and C. Rott and Shin, \{K. A.\} and A. Scarff and Spooner, \{N. J.C.\} and Thompson, \{W. G.\} and L. Yang and Yu, \{G. H.\}",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = jul,

day = "16",

doi = "10.1103/PhysRevLett.123.031302",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

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T1 - Search for a Dark Matter-Induced Annual Modulation Signal in NaI(Tl) with the COSINE-100 Experiment

AU - (COSINE-100 Collaboration)

AU - Adhikari, G.

AU - Adhikari, P.

AU - De Souza, E. Barbosa

AU - Carlin, N.

AU - Choi, S.

AU - Djamal, M.

AU - Ezeribe, A. C.

AU - Ha, C.

AU - Hahn, I. S.

AU - Jeon, E. J.

AU - Jo, J. H.

AU - Joo, H. W.

AU - Kang, W. G.

AU - Kang, W.

AU - Kauer, M.

AU - Kim, G. S.

AU - Kim, H.

AU - Kim, H. J.

AU - Kim, K. W.

AU - Kim, N. Y.

AU - Kim, S. K.

AU - Kim, Y. D.

AU - Kim, Y. H.

AU - Ko, Y. J.

AU - Kudryavtsev, V. A.

AU - Lee, H. S.

AU - Lee, J.

AU - Lee, J. Y.

AU - Lee, M. H.

AU - Leonard, D. S.

AU - Lynch, W. A.

AU - Maruyama, R. H.

AU - Mouton, F.

AU - Olsen, S. L.

AU - Park, B. J.

AU - Park, H. K.

AU - Park, H. S.

AU - Park, K. S.

AU - Pitta, R. L.C.

AU - Prihtiadi, H.

AU - Ra, S. J.

AU - Rott, C.

AU - Shin, K. A.

AU - Scarff, A.

AU - Spooner, N. J.C.

AU - Thompson, W. G.

AU - Yang, L.

AU - Yu, G. H.

PY - 2019/7/16

Y1 - 2019/7/16

N2 - 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 χ-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.

AB - 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 χ-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.

UR - https://www.scopus.com/pages/publications/85069900265

U2 - 10.1103/PhysRevLett.123.031302

DO - 10.1103/PhysRevLett.123.031302

M3 - Article

C2 - 31386435

AN - SCOPUS:85069900265

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

M1 - 031302

ER -

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

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