Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector
Abstract
Weakly interacting massive particles (WIMPs) are a leading candidate for dark matter and are expected to produce nuclear recoil (NR) events within liquid xenon time-projection chambers. We present a measurement of the scintillation timing characteristics of liquid xenon in the LUX dark matter detector and develop a pulse shape discriminant to be used for particle identification. To accurately measure the timing characteristics, we develop a template-fitting method to reconstruct the detection times of photons. Analyzing calibration data collected during the 2013–2016 LUX WIMP search, we provide a new measurement of the singlet-to-triplet scintillation ratio for electron recoils (ER) below 46 keV, and we make, to our knowledge, a first-ever measurement of the NR singlet-to-triplet ratio at recoil energies below 74 keV. We exploit the difference of the photon time spectra for NR and ER events by using a prompt fraction discrimination parameter, which is optimized using calibration data to have the least number of ER events that occur in a 50% NR acceptance region. We then demonstrate how this discriminant can be used in conjunction with the charge-to-light discrimination to possibly improve the signal-to-noise ratio for nuclear recoils.
- Authors:
- more »
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States); Brown Univ., Providence, RI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Sanford Underground Research Facility (SURF); USDOE National Nuclear Security Administration (NNSA)
- Contributing Org.:
- LUX Collaboration
- OSTI Identifier:
- 1457784
- Alternate Identifier(s):
- OSTI ID: 1436669; OSTI ID: 1441120; OSTI ID: 1502026; OSTI ID: 1532649
- Report Number(s):
- LLNL-JRNL-752062
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US1901406
- Grant/Contract Number:
- AC02-76SF00515; AC02-05CH11231; AC05-06OR23100; AC52-07NA27344; FG01-91ER40618; FG02-08ER41549; FG02-11ER41738; FG02-91ER40674; FG02-91ER40688; FG02-95ER40917; NA0000979; SC0006605; SC0010010; SC0015535; PHY-0750671; PHY-0801536; PHY-1003660; PHY-1004661; PHY-1102470; PHY-1312561; PHY-1347449; PHY-1505868; PHY-1636738; RA0350; PTDC/FIS-NUC/1525/2014; LLNL-JRNL-752062; FG02- 08ER41549; FG02- 91ER40674; FG02- 95ER40917; PHY- 1312561; PHY- 1636738; IE120804; ST/K502042/1; ST/K502406/1; ST/M503538/1; SC0017891
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 11; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Akerib, D. S., Alsum, S., Araújo, H. M., Bai, X., Bailey, A. J., Balajthy, J., Beltrame, P., Bernard, E. P., Bernstein, A., Biesiadzinski, T. P., Boulton, E. M., Brás, P., Byram, D., Carmona-Benitez, M. C., Chan, C., Currie, A., Cutter, J. E., Davison, T. J. R., Dobi, A., Druszkiewicz, E., Edwards, B. N., Fallon, S. R., Fan, A., Fiorucci, S., Gaitskell, R. J., Genovesi, J., Ghag, C., Gilchriese, M. G. D., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Hogan, D. P., Horn, M., Huang, D. Q., Ignarra, C. M., Jacobsen, R. G., Ji, W., Kamdin, K., Kazkaz, K., Khaitan, D., Knoche, R., Lenardo, B. G., Lesko, K. T., Liao, J., Lindote, A., Lopes, M. I., Manalaysay, A., Mannino, R. L., Marzioni, M. F., McKinsey, D. N., Mei, D. -M., Mock, J., Moongweluwan, M., Morad, J. A., Murphy, A. St. J., Nehrkorn, C., Nelson, H. N., Neves, F., O’Sullivan, K., Oliver-Mallory, K. C., Palladino, K. J., Pease, E. K., Rhyne, C., Shaw, S., Shutt, T. A., Silva, C., Solmaz, M., Solovov, V. N., Sorensen, P., Sumner, T. J., Szydagis, M., Taylor, D. J., Taylor, W. C., Tennyson, B. P., Terman, P. A., Tiedt, D. R., To, W. H., Tripathi, M., Tvrznikova, L., Utku, U., Uvarov, S., Velan, V., Verbus, J. R., Webb, R. C., White, J. T., Whitis, T. J., Witherell, M. S., Wolfs, F. L. H., Xu, J., Yazdani, K., Young, S. K., and Zhang, C. Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector. United States: N. p., 2018.
Web. doi:10.1103/physrevd.97.112002.
Akerib, D. S., Alsum, S., Araújo, H. M., Bai, X., Bailey, A. J., Balajthy, J., Beltrame, P., Bernard, E. P., Bernstein, A., Biesiadzinski, T. P., Boulton, E. M., Brás, P., Byram, D., Carmona-Benitez, M. C., Chan, C., Currie, A., Cutter, J. E., Davison, T. J. R., Dobi, A., Druszkiewicz, E., Edwards, B. N., Fallon, S. R., Fan, A., Fiorucci, S., Gaitskell, R. J., Genovesi, J., Ghag, C., Gilchriese, M. G. D., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Hogan, D. P., Horn, M., Huang, D. Q., Ignarra, C. M., Jacobsen, R. G., Ji, W., Kamdin, K., Kazkaz, K., Khaitan, D., Knoche, R., Lenardo, B. G., Lesko, K. T., Liao, J., Lindote, A., Lopes, M. I., Manalaysay, A., Mannino, R. L., Marzioni, M. F., McKinsey, D. N., Mei, D. -M., Mock, J., Moongweluwan, M., Morad, J. A., Murphy, A. St. J., Nehrkorn, C., Nelson, H. N., Neves, F., O’Sullivan, K., Oliver-Mallory, K. C., Palladino, K. J., Pease, E. K., Rhyne, C., Shaw, S., Shutt, T. A., Silva, C., Solmaz, M., Solovov, V. N., Sorensen, P., Sumner, T. J., Szydagis, M., Taylor, D. J., Taylor, W. C., Tennyson, B. P., Terman, P. A., Tiedt, D. R., To, W. H., Tripathi, M., Tvrznikova, L., Utku, U., Uvarov, S., Velan, V., Verbus, J. R., Webb, R. C., White, J. T., Whitis, T. J., Witherell, M. S., Wolfs, F. L. H., Xu, J., Yazdani, K., Young, S. K., & Zhang, C. Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector. United States. https://doi.org/10.1103/physrevd.97.112002
Akerib, D. S., Alsum, S., Araújo, H. M., Bai, X., Bailey, A. J., Balajthy, J., Beltrame, P., Bernard, E. P., Bernstein, A., Biesiadzinski, T. P., Boulton, E. M., Brás, P., Byram, D., Carmona-Benitez, M. C., Chan, C., Currie, A., Cutter, J. E., Davison, T. J. R., Dobi, A., Druszkiewicz, E., Edwards, B. N., Fallon, S. R., Fan, A., Fiorucci, S., Gaitskell, R. J., Genovesi, J., Ghag, C., Gilchriese, M. G. D., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Hogan, D. P., Horn, M., Huang, D. Q., Ignarra, C. M., Jacobsen, R. G., Ji, W., Kamdin, K., Kazkaz, K., Khaitan, D., Knoche, R., Lenardo, B. G., Lesko, K. T., Liao, J., Lindote, A., Lopes, M. I., Manalaysay, A., Mannino, R. L., Marzioni, M. F., McKinsey, D. N., Mei, D. -M., Mock, J., Moongweluwan, M., Morad, J. A., Murphy, A. St. J., Nehrkorn, C., Nelson, H. N., Neves, F., O’Sullivan, K., Oliver-Mallory, K. C., Palladino, K. J., Pease, E. K., Rhyne, C., Shaw, S., Shutt, T. A., Silva, C., Solmaz, M., Solovov, V. N., Sorensen, P., Sumner, T. J., Szydagis, M., Taylor, D. J., Taylor, W. C., Tennyson, B. P., Terman, P. A., Tiedt, D. R., To, W. H., Tripathi, M., Tvrznikova, L., Utku, U., Uvarov, S., Velan, V., Verbus, J. R., Webb, R. C., White, J. T., Whitis, T. J., Witherell, M. S., Wolfs, F. L. H., Xu, J., Yazdani, K., Young, S. K., and Zhang, C. Mon .
"Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector". United States. https://doi.org/10.1103/physrevd.97.112002. https://www.osti.gov/servlets/purl/1457784.
@article{osti_1457784,
title = {Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector},
author = {Akerib, D. S. and Alsum, S. and Araújo, H. M. and Bai, X. and Bailey, A. J. and Balajthy, J. and Beltrame, P. and Bernard, E. P. and Bernstein, A. and Biesiadzinski, T. P. and Boulton, E. M. and Brás, P. and Byram, D. and Carmona-Benitez, M. C. and Chan, C. and Currie, A. and Cutter, J. E. and Davison, T. J. R. and Dobi, A. and Druszkiewicz, E. and Edwards, B. N. and Fallon, S. R. and Fan, A. and Fiorucci, S. and Gaitskell, R. J. and Genovesi, J. and Ghag, C. and Gilchriese, M. G. D. and Hall, C. R. and Haselschwardt, S. J. and Hertel, S. A. and Hogan, D. P. and Horn, M. and Huang, D. Q. and Ignarra, C. M. and Jacobsen, R. G. and Ji, W. and Kamdin, K. and Kazkaz, K. and Khaitan, D. and Knoche, R. and Lenardo, B. G. and Lesko, K. T. and Liao, J. and Lindote, A. and Lopes, M. I. and Manalaysay, A. and Mannino, R. L. and Marzioni, M. F. and McKinsey, D. N. and Mei, D. -M. and Mock, J. and Moongweluwan, M. and Morad, J. A. and Murphy, A. St. J. and Nehrkorn, C. and Nelson, H. N. and Neves, F. and O’Sullivan, K. and Oliver-Mallory, K. C. and Palladino, K. J. and Pease, E. K. and Rhyne, C. and Shaw, S. and Shutt, T. A. and Silva, C. and Solmaz, M. and Solovov, V. N. and Sorensen, P. and Sumner, T. J. and Szydagis, M. and Taylor, D. J. and Taylor, W. C. and Tennyson, B. P. and Terman, P. A. and Tiedt, D. R. and To, W. H. and Tripathi, M. and Tvrznikova, L. and Utku, U. and Uvarov, S. and Velan, V. and Verbus, J. R. and Webb, R. C. and White, J. T. and Whitis, T. J. and Witherell, M. S. and Wolfs, F. L. H. and Xu, J. and Yazdani, K. and Young, S. K. and Zhang, C.},
abstractNote = {Weakly interacting massive particles (WIMPs) are a leading candidate for dark matter and are expected to produce nuclear recoil (NR) events within liquid xenon time-projection chambers. We present a measurement of the scintillation timing characteristics of liquid xenon in the LUX dark matter detector and develop a pulse shape discriminant to be used for particle identification. To accurately measure the timing characteristics, we develop a template-fitting method to reconstruct the detection times of photons. Analyzing calibration data collected during the 2013–2016 LUX WIMP search, we provide a new measurement of the singlet-to-triplet scintillation ratio for electron recoils (ER) below 46 keV, and we make, to our knowledge, a first-ever measurement of the NR singlet-to-triplet ratio at recoil energies below 74 keV. We exploit the difference of the photon time spectra for NR and ER events by using a prompt fraction discrimination parameter, which is optimized using calibration data to have the least number of ER events that occur in a 50% NR acceptance region. We then demonstrate how this discriminant can be used in conjunction with the charge-to-light discrimination to possibly improve the signal-to-noise ratio for nuclear recoils.},
doi = {10.1103/physrevd.97.112002},
journal = {Physical Review D},
number = 11,
volume = 97,
place = {United States},
year = {Mon Jun 11 00:00:00 EDT 2018},
month = {Mon Jun 11 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Measurements of wavelength-dependent double photoelectron emission from single photons in VUV-sensitive photomultiplier tubes
journal, September 2015
- Faham, C. H.; Gehman, V. M.; Currie, A.
- Journal of Instrumentation, Vol. 10, Issue 09
A Global Analysis of Light and Charge Yields in Liquid Xenon
journal, December 2015
- Lenardo, Brian; Kazkaz, Kareem; Manalaysay, Aaron
- IEEE Transactions on Nuclear Science, Vol. 62, Issue 6
Dark Matter Results from First 98.7 Days of Data from the PandaX-II Experiment
journal, September 2016
- Tan, Andi; Xiao, Mengjiao; Cui, Xiangyi
- Physical Review Letters, Vol. 117, Issue 12
Scintillation-only based pulse shape discrimination for nuclear and electron recoils in liquid xenon
journal, December 2011
- Ueshima, K.; Abe, K.; Hiraide, K.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 659, Issue 1
Inelastic frontier: Discovering dark matter at high recoil energy
journal, December 2016
- Bramante, Joseph; Fox, Patrick J.; Kribs, Graham D.
- Physical Review D, Vol. 94, Issue 11
Scintillation pulse shape discrimination in a two-phase xenon time projection chamber
journal, January 2010
- Kwong, J.; Brusov, P.; Shutt, T.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 612, Issue 2
Evidence for a triplet state of the self-trapped exciton states in liquid argon, krypton and xenon
journal, June 1978
- Kubota, S.; Hishida, M.; Raun, J.
- Journal of Physics C: Solid State Physics, Vol. 11, Issue 12
Measurements of scintillation efficiency and pulse shape for low energy recoils in liquid xenon
journal, January 2002
- Akimov, D.; Bewick, A.; Davidge, D.
- Physics Letters B, Vol. 524, Issue 3-4
A measurement of the time profile of scintillation induced by low energy gamma-rays in liquid xenon with the XMASS-I detector
journal, October 2016
- Takiya, H.; Abe, K.; Hiraide, K.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 834
The effective field theory of dark matter direct detection
journal, February 2013
- Fitzpatrick, A. Liam; Haxton, Wick; Katz, Emanuel
- Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 02
First limits on nuclear recoil events from the ZEPLIN I galactic dark matter detector
journal, June 2005
- Alner, G. J.; Araujo, H.; Arnison, G. J.
- Astroparticle Physics, Vol. 23, Issue 5
NEST: a comprehensive model for scintillation yield in liquid xenon
journal, October 2011
- Szydagis, M.; Barry, N.; Kazkaz, K.
- Journal of Instrumentation, Vol. 6, Issue 10
Dynamical behavior of free electrons in the recombination process in liquid argon, krypton, and xenon
journal, October 1979
- Kubota, Shinzou; Hishida, Masahiko; Suzuki, Masayo
- Physical Review B, Vol. 20, Issue 8
Calibration, event reconstruction, data analysis, and limit calculation for the LUX dark matter experiment
journal, May 2018
- Akerib, D. S.; Alsum, S.; Araújo, H. M.
- Physical Review D, Vol. 97, Issue 10
Data acquisition and readout system for the LUX dark matter experiment
journal, March 2012
- Akerib, D. S.; Bai, X.; Bedikian, S.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 668
ROOT — An object oriented data analysis framework
journal, April 1997
- Brun, Rene; Rademakers, Fons
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 389, Issue 1-2
The impact of photon flight path on S1 pulse shape analysis in liquid xenon two-phase detectors
journal, February 2016
- Moongweluwan, M.
- Journal of Instrumentation, Vol. 11, Issue 02
Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data
journal, April 2016
- Akerib, D. S.; Araújo, H. M.; Bai, X.
- Physical Review Letters, Vol. 116, Issue 16
Geant4 developments and applications
journal, February 2006
- Allison, J.; Amako, K.; Apostolakis, J.
- IEEE Transactions on Nuclear Science, Vol. 53, Issue 1
calibration of the 2013 LUX dark matter search
journal, December 2017
- Akerib, D. S.; Alsum, S.; Araújo, H. M.
- Physical Review D, Vol. 96, Issue 11
Minuit - a system for function minimization and analysis of the parameter errors and correlations
journal, December 1975
- James, F.; Roos, M.
- Computer Physics Communications, Vol. 10, Issue 6
Physics reach of the XENON1T dark matter experiment.
journal, April 2016
- Aprile, E.; Aalbers, J.; Agostini, F.
- Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 04
Scintillation time dependence and pulse shape discrimination in liquid argon
journal, September 2008
- Lippincott, W. H.; Coakley, K. J.; Gastler, D.
- Physical Review C, Vol. 78, Issue 3
Limits on inelastic dark matter from ZEPLIN-III
journal, August 2010
- Akimov, D. Yu.; Araújo, H. M.; Barnes, E. J.
- Physics Letters B, Vol. 692, Issue 3
Measurement of the absolute reflectance of polytetrafluoroethylene (PTFE) immersed in liquid xenon
journal, January 2017
- Neves, F.; Lindote, A.; Morozov, A.
- Journal of Instrumentation, Vol. 12, Issue 01
LUXSim: A component-centric approach to low-background simulations
journal, May 2012
- Akerib, D. S.; Bai, X.; Bedikian, S.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 675
Results from a Search for Dark Matter in the Complete LUX Exposure
journal, January 2017
- Akerib, D. S.; Alsum, S.; Araújo, H. M.
- Physical Review Letters, Vol. 118, Issue 2
Constraints on inelastic dark matter from XENON10
journal, December 2009
- Angle, J.; Aprile, E.; Arneodo, F.
- Physical Review D, Vol. 80, Issue 11
Position reconstruction in LUX
journal, February 2018
- Akerib, D. S.; Alsum, S.; Araújo, H. M.
- Journal of Instrumentation, Vol. 13, Issue 02
Geant4—a simulation toolkit
journal, July 2003
- Agostinelli, S.; Allison, J.; Amako, K.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
Modeling pulse characteristics in Xenon with NEST
journal, April 2014
- Mock, J.; Barry, N.; Kazkaz, K.
- Journal of Instrumentation, Vol. 9, Issue 04
New limits on particle dark matter search with a liquid Xenon target-scintillator
journal, September 1998
- Bernabei, R.; Belli, P.; Montecchia, F.
- Physics Letters B, Vol. 436, Issue 3-4
Tritium calibration of the LUX dark matter experiment
journal, April 2016
- Akerib, D. S.; Araújo, H. M.; Bai, X.
- Physical Review D, Vol. 93, Issue 7
Dark Matter Results from 225 Live Days of XENON100 Data
journal, November 2012
- Aprile, E.; Alfonsi, M.; Arisaka, K.
- Physical Review Letters, Vol. 109, Issue 18
Exciton Self‐Trapping in Rare‐Gas Crystals
journal, April 1971
- Martin, Marlo
- The Journal of Chemical Physics, Vol. 54, Issue 8
Improving photoelectron counting and particle identification in scintillation detectors with Bayesian techniques
journal, May 2015
- Akashi-Ronquest, M.; Amaudruz, P. -A.; Batygov, M.
- Astroparticle Physics, Vol. 65
Effect of ionization density on the time dependence of luminescence from liquid argon and xenon
journal, May 1983
- Hitachi, Akira; Takahashi, Tan; Funayama, Nobutaka
- Physical Review B, Vol. 27, Issue 9
A study of the scintillation induced by alpha particles and gamma rays in liquid xenon in an electric field
journal, June 2005
- Dawson, J. V.; Howard, A. S.; Akimov, D.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 545, Issue 3
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso
journal, April 2015
- Agnes, P.; Alexander, T.; Alton, A.
- Physics Letters B, Vol. 743
Light WIMP search in XMASS
journal, February 2013
- Abe, K.; Hieda, K.; Hiraide, K.
- Physics Letters B, Vol. 719, Issue 1-3
The Sanford Underground Research Facility at Homestake
journal, May 2015
- Heise, J.
- Journal of Physics: Conference Series, Vol. 606
High-accuracy measurement of the emission spectrum of liquid xenon in the vacuum ultraviolet region
journal, September 2015
- Fujii, Keiko; Endo, Yuya; Torigoe, Yui
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 795
Works referencing / citing this record:
Timing and characterization of shaped pulses with MHz ADCs in a detector system: a comparative study and deep learning approach
journal, March 2019
- Ai, P.; Wang, D.; Huang, G.
- Journal of Instrumentation, Vol. 14, Issue 03
Figures / Tables found in this record: