Investigation of background electron emission in the LUX detector
| Autor: | D. J. Taylor, M. G. D. Gilchriese, V. Velan, U. Utku, A. Manalaysay, A. Fan, S. Shaw, L. Tvrznikova, P. A. Terman, T. J. Sumner, J. T. White, Ethan Bernard, H. N. Nelson, W. H. To, D. Woodward, W. C. Taylor, J. Balajthy, B. G. Lenardo, M. S. Witherell, O. Jahangir, P. Brás, Robert A. Taylor, Q. Riffard, Carl Gwilliam, Daniel McKinsey, R. G. Jacobsen, Jilei Xu, C. Nehrkorn, T. J. Whitis, M. Solmaz, X. Bai, D. Khaitan, S. Alsum, M. C. Carmona-Benitez, S. A. Hertel, W. Ji, K. Kamdin, E. Druszkiewicz, M. Moongweluwan, Antonin Vacheret, F. L. H. Wolfs, P. Rossiter, K. J. Palladino, E. M. Boulton, R. L. Mannino, Elena Korolkova, G. R. C. Rischbieter, K. C. Oliver-Mallory, S. J. Haselschwardt, D. Byram, T. A. Shutt, J. A. Morad, J. Lin, D. R. Tiedt, Henrique Araujo, E. K. Pease, D. P. Hogan, B. Boxer, K. T. Lesko, V. N. Solovov, E. Leason, C. R. Hall, Matthew Szydagis, D. S. Akerib, S. Uvarov, R. C. Webb, M. Horn, L. de Viveiros, A. St. J. Murphy, P. Sorensen, Adam Bernstein, B. P. Tennyson, A. Naylor, M.I. Lopes, D. Q. Huang, Kareem Kazkaz, V. A. Kudryavtsev, C. M. Ignarra, T. P. Biesiadzinski, J. Liao, Sergey Burdin, C. Rhyne, A. Baxter, R. J. Gaitskell, A. Lindote, S. Fiorucci, J. E. Cutter, Chao Zhang, C. Ghag, N. Marangou, F. Neves, Dongming Mei, Catarina Silva, C. Chan, S. Kravitz, A. Nilima |
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| Přispěvatelé: | Science and Technology Facilities Council (STFC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics - Instrumentation and Detectors
Physics::Instrumentation and Detectors Dark matter FOS: Physical sciences chemistry.chemical_element Electron Photoionization Astrophysics::Cosmology and Extragalactic Astrophysics Astronomy & Astrophysics Atomic 01 natural sciences Physics Particles & Fields ENERGY XENON Particle and Plasma Physics Xenon DEPENDENCE Impurity LIQUID ARGON 0103 physical sciences Nuclear FIELD 010306 general physics physics.ins-det Physics Quantum Physics Science & Technology 010308 nuclear & particles physics Detector Molecular Instrumentation and Detectors (physics.ins-det) Photoelectric effect Nuclear & Particles Physics STATE KRYPTON chemistry Physical Sciences Atomic physics Luminescence Astronomical and Space Sciences |
| Zdroj: | Physical Review D, vol 102, iss 9 Akerib, D S, Alsum, S, Araújo, H M, Bai, X, Balajthy, J, Baxter, A, Bernard, E P, Bernstein, A, Biesiadzinski, T P, Boulton, E M, Boxer, B, Brás, P, Burdin, S, Byram, D, Carmona-Benitez, M C, Chan, C, Cutter, J E, Viveiros, L D, Druszkiewicz, E, Fan, A, Fiorucci, S, Gaitskell, R J, Ghag, C, Gilchriese, M G D, Gwilliam, C, Hall, C R, Haselschwardt, S J, Hertel, S A, Hogan, D P, Horn, M, Huang, D Q, Ignarra, C M, Jacobsen, R G, Jahangir, O, Ji, W, Kamdin, K, Kazkaz, K, Khaitan, D, Korolkova, E V, Kravitz, S, Kudryavtsev, V A, Leason, E, Lenardo, B G, Lesko, K T, Liao, J, Lin, J, Lindote, A, Lopes, M I, Manalaysay, A, Mannino, R L, Marangou, N, McKinsey, D N, Mei, D M, Moongweluwan, M, Morad, J A, Murphy, A S J, Naylor, A, Nehrkorn, C, Nelson, H N, Neves, F, Nilima, A, Oliver-Mallory, K C, Palladino, K J, Pease, E K, Riffard, Q, Rischbieter, G R C, Rhyne, C, Rossiter, P, Shaw, S, Shutt, T A, Silva, C, Solmaz, M, Solovov, V N, Sorensen, P, Sumner, T J, Szydagis, M, Taylor, D J, Taylor, R, Taylor, W C, Tennyson, B P, Terman, P A, Tiedt, D R, To, W H, Tvrznikova, L, Utku, U, Uvarov, S, Vacheret, A, Velan, V, Webb, R C, White, J T, Whitis, T J, Witherell, M S, Wolfs, F L H, Woodward, D, Xu, J & Zhang, C 2020, ' Investigation of background electron emission in the LUX detector ', Physical Review D-Particles, Fields, Gravitation and Cosmology, vol. 102, no. 9, 092004 . https://doi.org/10.1103/PhysRevD.102.092004 |
| ISSN: | 2470-0010 |
| DOI: | 10.1103/PhysRevD.102.092004 |
| Popis: | Dual-phase xenon detectors, as currently used in direct detection dark matter experiments, have observed elevated rates of background electron events in the low energy region. While this background negatively impacts detector performance in various ways, its origins have only been partially studied. In this paper we report a systematic investigation of the electron pathologies observed in the LUX dark matter experiment. We characterize different electron populations based on their emission intensities and their correlations with preceding energy depositions in the detector. By studying the background under different experimental conditions, we identified the leading emission mechanisms, including photoionization and the photoelectric effect induced by the xenon luminescence, delayed emission of electrons trapped under the liquid surface, capture and release of drifting electrons by impurities, and grid electron emission. We discuss how these backgrounds can be mitigated in LUX and future xenon-based dark matter experiments. 17 pages, 13 figures |
| Databáze: | OpenAIRE |
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