Radiogenic and muon-induced backgrounds in the LUX dark matter detector

D. S. Akerib; H. M. Araújo; X. Bai; A. J. Bailey; J. Balajthy; E. Bernard; A. Bernstein; A. Bradley; D. Byram; S. B. Cahn; M. C. Carmona-Benitez; C. Chan; J. J. Chapman; A. A. Chiller; C. Chiller; T. Coffey; A. Currie; L. De Viveiros; A. Dobi; J. Dobson; E. Druszkiewicz; B. Edwards; C. H. Faham; S. Fiorucci; C. Flores; R. J. Gaitskell; V. M. Gehman; C. Ghag; K. R. Gibson; M. G.D. Gilchriese; C. Hall; S. A. Hertel; M. Horn; D. Q. Huang; M. Ihm; R. G. Jacobsen; K. Kazkaz; R. Knoche; N. A. Larsen; C. Lee; A. Lindote; M. I. Lopes; D. C. Malling; R. Mannino; D. N. McKinsey; D. M. Mei; J. Mock; M. Moongweluwan; J. Morad; A. St J. Murphy; C. Nehrkorn; H. Nelson; F. Neves; R. A. Ott; M. Pangilinan; P. D. Parker; E. K. Pease; K. Pech; P. Phelps; L. Reichhart; T. Shutt; C. Silva; V. N. Solovov; P. Sorensen; K. O'Sullivan; T. J. Sumner; M. Szydagis; D. Taylor; B. Tennyson; D. R. Tiedt; M. Tripathi; S. Uvarov; J. R. Verbus; N. Walsh; R. Webb; J. T. White; M. S. Witherell; F. L.H. Wolfs; M. Woods; C. Zhang

doi:10.1016/j.astropartphys.2014.07.009

Radiogenic and muon-induced backgrounds in the LUX dark matter detector

D. S. Akerib
, H. M. Araújo
, X. Bai
, A. J. Bailey
, J. Balajthy
, E. Bernard
, A. Bernstein
, A. Bradley
, D. Byram
, S. B. Cahn
, M. C. Carmona-Benitez
, C. Chan
, J. J. Chapman
, A. A. Chiller
, C. Chiller
, T. Coffey
, A. Currie
, L. De Viveiros
, A. Dobi
, J. Dobson

E. Druszkiewicz, B. Edwards, C. H. Faham, S. Fiorucci, C. Flores, R. J. Gaitskell, V. M. Gehman, C. Ghag, K. R. Gibson, M. G.D. Gilchriese, C. Hall, S. A. Hertel, M. Horn, D. Q. Huang, M. Ihm, R. G. Jacobsen, K. Kazkaz, R. Knoche, N. A. Larsen, C. Lee, A. Lindote, M. I. Lopes, D. C. Malling, R. Mannino, D. N. McKinsey, D. M. Mei, J. Mock, M. Moongweluwan, J. Morad, A. St J. Murphy, C. Nehrkorn, H. Nelson, F. Neves, R. A. Ott, M. Pangilinan, P. D. Parker, E. K. Pease, K. Pech, P. Phelps, L. Reichhart, T. Shutt, C. Silva, V. N. Solovov, P. Sorensen, K. O'Sullivan, T. J. Sumner, M. Szydagis, D. Taylor, B. Tennyson, D. R. Tiedt, M. Tripathi, S. Uvarov, J. R. Verbus, N. Walsh, R. Webb, J. T. White, M. S. Witherell, F. L.H. Wolfs, M. Woods, C. Zhang

Physics

University at Albany

Case Western Reserve University
Imperial College London
South Dakota School of Mines & Technology
University of Maryland, College Park
Yale University
Lawrence Livermore National Laboratory
University of South Dakota
University of California at Santa Barbara
Brown University
University of Coimbra
University of Edinburgh
University of Rochester
Lawrence Berkeley National Laboratory
University of California at Davis
University College London
University of California at Berkeley
Texas A&M University
South Dakota Science and Technology Authority

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

72 Scopus citations

Abstract

The Large Underground Xenon (LUX) dark matter experiment aims to detect rare low-energy interactions from Weakly Interacting Massive Particles (WIMPs). The radiogenic backgrounds in the LUX detector have been measured and compared with Monte Carlo simulation. Measurements of LUX high-energy data have provided direct constraints on all background sources contributing to the background model. The expected background rate from the background model for the 85.3 day WIMP search run is (2.6±0.2_stat±0.4_sys) ×10^-3 events keVee-1kg-¹day-¹ in a 118 kg fiducial volume. The observed background rate is (3.6±0.4 _stat)×10^-3 events keVee-1kg-¹day- ¹, consistent with model projections. The expectation for the radiogenic background in a subsequent one-year run is presented.

Original language	English
Pages (from-to)	33-46
Number of pages	14
Journal	Astroparticle Physics
Volume	62
DOIs	https://doi.org/10.1016/j.astropartphys.2014.07.009
State	Published - Mar 2015

Keywords

Dark matter
LUX
Material screening
Radioactive background
Simulation

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10.1016/j.astropartphys.2014.07.009

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Akerib, D. S., Araújo, H. M., Bai, X., Bailey, A. J., Balajthy, J., Bernard, E., Bernstein, A., Bradley, A., Byram, D., Cahn, S. B., Carmona-Benitez, M. C., Chan, C., Chapman, J. J., Chiller, A. A., Chiller, C., Coffey, T., Currie, A., De Viveiros, L., Dobi, A., ... Zhang, C. (2015). Radiogenic and muon-induced backgrounds in the LUX dark matter detector. Astroparticle Physics, 62, 33-46. https://doi.org/10.1016/j.astropartphys.2014.07.009

@article{dbe704eb84c94b06a7273da50e1364b0,

title = "Radiogenic and muon-induced backgrounds in the LUX dark matter detector",

abstract = "The Large Underground Xenon (LUX) dark matter experiment aims to detect rare low-energy interactions from Weakly Interacting Massive Particles (WIMPs). The radiogenic backgrounds in the LUX detector have been measured and compared with Monte Carlo simulation. Measurements of LUX high-energy data have provided direct constraints on all background sources contributing to the background model. The expected background rate from the background model for the 85.3 day WIMP search run is (2.6±0.2stat±0.4sys) ×10-3 events keVee-1kg-1day-1 in a 118 kg fiducial volume. The observed background rate is (3.6±0.4 stat)×10-3 events keVee-1kg-1day- 1, consistent with model projections. The expectation for the radiogenic background in a subsequent one-year run is presented.",

keywords = "Dark matter, LUX, Material screening, Radioactive background, Simulation",

author = "Akerib, \{D. S.\} and Ara{\'u}jo, \{H. M.\} and X. Bai and Bailey, \{A. J.\} and J. Balajthy and E. Bernard and A. Bernstein and A. Bradley and D. Byram and Cahn, \{S. B.\} and Carmona-Benitez, \{M. C.\} and C. Chan and Chapman, \{J. J.\} and Chiller, \{A. A.\} and C. Chiller and T. Coffey and A. Currie and \{De Viveiros\}, L. and A. Dobi and J. Dobson and E. Druszkiewicz and B. Edwards and Faham, \{C. H.\} and S. Fiorucci and C. Flores and Gaitskell, \{R. J.\} and Gehman, \{V. M.\} and C. Ghag and Gibson, \{K. R.\} and Gilchriese, \{M. G.D.\} and C. Hall and Hertel, \{S. A.\} and M. Horn and Huang, \{D. Q.\} and M. Ihm and Jacobsen, \{R. G.\} and K. Kazkaz and R. Knoche and Larsen, \{N. A.\} and C. Lee and A. Lindote and Lopes, \{M. I.\} and Malling, \{D. C.\} and R. Mannino and McKinsey, \{D. N.\} and Mei, \{D. M.\} and J. Mock and M. Moongweluwan and J. Morad and Murphy, \{A. St J.\} and C. Nehrkorn and H. Nelson and F. Neves and Ott, \{R. A.\} and M. Pangilinan and Parker, \{P. D.\} and Pease, \{E. K.\} and K. Pech and P. Phelps and L. Reichhart and T. Shutt and C. Silva and Solovov, \{V. N.\} and P. Sorensen and K. O'Sullivan and Sumner, \{T. J.\} and M. Szydagis and D. Taylor and B. Tennyson and Tiedt, \{D. R.\} and M. Tripathi and S. Uvarov and Verbus, \{J. R.\} and N. Walsh and R. Webb and White, \{J. T.\} and Witherell, \{M. S.\} and Wolfs, \{F. L.H.\} and M. Woods and C. Zhang",

year = "2015",

month = mar,

doi = "10.1016/j.astropartphys.2014.07.009",

language = "English",

volume = "62",

pages = "33--46",

journal = "Astroparticle Physics",

issn = "0927-6505",

publisher = "Elsevier B.V.",

}

Akerib, DS, Araújo, HM, Bai, X, Bailey, AJ, Balajthy, J, Bernard, E, Bernstein, A, Bradley, A, Byram, D, Cahn, SB, Carmona-Benitez, MC, Chan, C, Chapman, JJ, Chiller, AA, Chiller, C, Coffey, T, Currie, A, De Viveiros, L, Dobi, A, Dobson, J, Druszkiewicz, E, Edwards, B, Faham, CH, Fiorucci, S, Flores, C, Gaitskell, RJ, Gehman, VM, Ghag, C, Gibson, KR, Gilchriese, MGD, Hall, C, Hertel, SA, Horn, M, Huang, DQ, Ihm, M, Jacobsen, RG, Kazkaz, K, Knoche, R, Larsen, NA, Lee, C, Lindote, A, Lopes, MI, Malling, DC, Mannino, R, McKinsey, DN, Mei, DM, Mock, J, Moongweluwan, M, Morad, J, Murphy, ASJ, Nehrkorn, C, Nelson, H, Neves, F, Ott, RA, Pangilinan, M, Parker, PD, Pease, EK, Pech, K, Phelps, P, Reichhart, L, Shutt, T, Silva, C, Solovov, VN, Sorensen, P, O'Sullivan, K, Sumner, TJ, Szydagis, M, Taylor, D, Tennyson, B, Tiedt, DR, Tripathi, M, Uvarov, S, Verbus, JR, Walsh, N, Webb, R, White, JT, Witherell, MS, Wolfs, FLH, Woods, M & Zhang, C 2015, 'Radiogenic and muon-induced backgrounds in the LUX dark matter detector', Astroparticle Physics, vol. 62, pp. 33-46. https://doi.org/10.1016/j.astropartphys.2014.07.009

TY - JOUR

T1 - Radiogenic and muon-induced backgrounds in the LUX dark matter detector

AU - Akerib, D. S.

AU - Araújo, H. M.

AU - Bai, X.

AU - Bailey, A. J.

AU - Balajthy, J.

AU - Bernard, E.

AU - Bernstein, A.

AU - Bradley, A.

AU - Byram, D.

AU - Cahn, S. B.

AU - Carmona-Benitez, M. C.

AU - Chan, C.

AU - Chapman, J. J.

AU - Chiller, A. A.

AU - Chiller, C.

AU - Coffey, T.

AU - Currie, A.

AU - De Viveiros, L.

AU - Dobi, A.

AU - Dobson, J.

AU - Druszkiewicz, E.

AU - Edwards, B.

AU - Faham, C. H.

AU - Fiorucci, S.

AU - Flores, C.

AU - Gaitskell, R. J.

AU - Gehman, V. M.

AU - Ghag, C.

AU - Gibson, K. R.

AU - Gilchriese, M. G.D.

AU - Hall, C.

AU - Hertel, S. A.

AU - Horn, M.

AU - Huang, D. Q.

AU - Ihm, M.

AU - Jacobsen, R. G.

AU - Kazkaz, K.

AU - Knoche, R.

AU - Larsen, N. A.

AU - Lee, C.

AU - Lindote, A.

AU - Lopes, M. I.

AU - Malling, D. C.

AU - Mannino, R.

AU - McKinsey, D. N.

AU - Mei, D. M.

AU - Mock, J.

AU - Moongweluwan, M.

AU - Morad, J.

AU - Murphy, A. St J.

AU - Nehrkorn, C.

AU - Nelson, H.

AU - Neves, F.

AU - Ott, R. A.

AU - Pangilinan, M.

AU - Parker, P. D.

AU - Pease, E. K.

AU - Pech, K.

AU - Phelps, P.

AU - Reichhart, L.

AU - Shutt, T.

AU - Silva, C.

AU - Solovov, V. N.

AU - Sorensen, P.

AU - O'Sullivan, K.

AU - Sumner, T. J.

AU - Szydagis, M.

AU - Taylor, D.

AU - Tennyson, B.

AU - Tiedt, D. R.

AU - Tripathi, M.

AU - Uvarov, S.

AU - Verbus, J. R.

AU - Walsh, N.

AU - Webb, R.

AU - White, J. T.

AU - Witherell, M. S.

AU - Wolfs, F. L.H.

AU - Woods, M.

AU - Zhang, C.

PY - 2015/3

Y1 - 2015/3

N2 - The Large Underground Xenon (LUX) dark matter experiment aims to detect rare low-energy interactions from Weakly Interacting Massive Particles (WIMPs). The radiogenic backgrounds in the LUX detector have been measured and compared with Monte Carlo simulation. Measurements of LUX high-energy data have provided direct constraints on all background sources contributing to the background model. The expected background rate from the background model for the 85.3 day WIMP search run is (2.6±0.2stat±0.4sys) ×10-3 events keVee-1kg-1day-1 in a 118 kg fiducial volume. The observed background rate is (3.6±0.4 stat)×10-3 events keVee-1kg-1day- 1, consistent with model projections. The expectation for the radiogenic background in a subsequent one-year run is presented.

AB - The Large Underground Xenon (LUX) dark matter experiment aims to detect rare low-energy interactions from Weakly Interacting Massive Particles (WIMPs). The radiogenic backgrounds in the LUX detector have been measured and compared with Monte Carlo simulation. Measurements of LUX high-energy data have provided direct constraints on all background sources contributing to the background model. The expected background rate from the background model for the 85.3 day WIMP search run is (2.6±0.2stat±0.4sys) ×10-3 events keVee-1kg-1day-1 in a 118 kg fiducial volume. The observed background rate is (3.6±0.4 stat)×10-3 events keVee-1kg-1day- 1, consistent with model projections. The expectation for the radiogenic background in a subsequent one-year run is presented.

KW - Dark matter

KW - LUX

KW - Material screening

KW - Radioactive background

KW - Simulation

UR - https://www.scopus.com/pages/publications/84906087192

U2 - 10.1016/j.astropartphys.2014.07.009

DO - 10.1016/j.astropartphys.2014.07.009

M3 - Article

SN - 0927-6505

VL - 62

SP - 33

EP - 46

JO - Astroparticle Physics

JF - Astroparticle Physics

ER -

Radiogenic and muon-induced backgrounds in the LUX dark matter detector

Abstract

Keywords

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