LUX trigger efficiency

Akerib, D. S.; Alsum, S.; Araújo, H. M.; Bai, X.; Balajthy, J.; Beltrame, P.; Bernard, E. P.; Bernstein, A.; Biesiadzinski, T. P.; Boulton, E. M.; B. Boxer,; Brás, P.; S. Burdin,; Byram, D.; Carmona-Benitez, M. C.; Chan, C.; Cutter, J. E.; Davison, T. J.R.; Druszkiewicz, E.; Fallon, S. R.; Fan, A.; Fiorucci, S.; Gaitskell, R. J.; Genovesi, J.; Ghag, C.; Gilchriese, M. G.D.; E. Grace,; C. Gwilliam,; 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.; E.V. Korolkova,; S. Kravitz,; V.A. Kudryavtsev,; Lenardo, B. G.; Lesko, K. T.; Liao, J.; J. Lin,; Lindote, A.; Lopes, M. I.; Manalaysay, A.; Mannino, R. L.; Marangou, N.; Marzioni, M. F.; McKinsey, D. N.; Mei, D. -M.; Moongweluwan, M.; Morad, J. A.; Murphy, A. St.J.; Nehrkorn, C.; Nelson, H. N.; Neves, F.; Oliver-Mallory, K. C.; Palladino, K. J.; Pease, E. K.; G. Rischbieter,; Rhyne, C.; P. Rossiter,; 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.; D. Woodward,; Xu, J.; Yazdani, K.; Zhang, C.

doi:10.1016/j.nima.2018.07.094

Title: LUX trigger efficiency

Journal Article · Thu Nov 01 00:00:00 EDT 2018 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2018.07.094· OSTI ID:1866185

Akerib, D. S. ^[1]; Alsum, S.; Araújo, H. M.; Bai, X.; Balajthy, J.; Beltrame, P.; Bernard, E. P.; Bernstein, A.; Biesiadzinski, T. P.; Boulton, E. M.; B. Boxer,; Brás, P.; S. Burdin,; Byram, D.; Carmona-Benitez, M. C.; Chan, C.; Cutter, J. E.; Davison, T. J.R.; Druszkiewicz, E.; Fallon, S. R. more »

Case Western Reserve Univ., Cleveland, OH (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States); LUX Collaboration. et al.

The Large Underground Xenon experiment (LUX) searches for dark matter using a dual-phase xenon detector. LUX uses a custom-developed trigger system for event selection. Here, the trigger efficiency, which is defined as the probability that an event of interest is selected for offline analysis, is studied using raw data obtained from both electron recoil (ER) and nuclear recoil (NR) calibrations. The measured efficiency exceeds 98% at a pulse area of 90 detected photons, which is well below the WIMP analysis threshold on the S2 pulse area. The efficiency also exceeds 98% at recoil energies of 1.3 keV and above, for both ER and NR. In conclusion, the measured trigger efficiency varies between 99% and 100% over the fiducial volume of the detector.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of Rochester, NY (United States); Brown Univ., Providence, RI (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), High Energy Physics (HEP); Sanford Underground Research Facility (SURF)

Contributing Organization:: LUX Collaboration

Grant/Contract Number:: AC02-05CH11231; AC05-06OR23100; AC52-07NA27344; FG01-91ER40618; FG02-08ER41549; FG02-11ER41738; FG02-91ER40674; FG02- 91ER40688; FG02-95ER40917; NA0000979; SC0006605; SC0010010; SC0015535; SC0017891; PHYS-0750671; PHY-0801536; PHY-1003660; PHY-1004661; PHY-1102470; PHY-1312561; PHY-1347449; PHY-1505868; PHY-1636738; RA0350; PTDC/FIS-NUC/1525/2014; IE120804; ST/K502042/1; ST/K502406/1; ST/M503538/1; FG02-91ER40688

OSTI ID:: 1866185

Alternate ID(s):: OSTI ID: 1436670; OSTI ID: 1532650; OSTI ID: 1702584

Report Number(s):: LLNL-JRNL-833878; 1052155; TRN: US2306033

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 908, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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References (16)

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79 ASTRONOMY AND ASTROPHYSICS
trigger efficiency
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