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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Dr. Kimberly Palladino

Associate Professor

Sub department

  • Particle Physics

Research groups

  • LUX-ZEPLIN
kimberly.palladino@physics.ox.ac.uk
Telephone: 273301
Denys Wilkinson Building, room 622
  • About
  • Publications

The LUX-ZEPLIN (LZ) experiment

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Elsevier 953 (2019) 163047

Authors:

DS Akerib, CW Akerlof, D Yu Akimov, Kathryn Boast, Amy Cottle, T Fruth, E Gibson, Hans Kraus, Andrew Stevens, Matthew Tan,

Abstract:

We describe the design and assembly of the LUX-ZEPLIN experiment, a direct detection search for cosmic WIMP dark matter particles. The centerpiece of the experiment is a large liquid xenon time projection chamber sensitive to low energy nuclear recoils. Rejection of backgrounds is enhanced by a Xe skin veto detector and by a liquid scintillator Outer Detector loaded with gadolinium for efficient neutron capture and tagging. LZ is located in the Davis Cavern at the 4850’ level of the Sanford Underground Research Facility in Lead, South Dakota, USA. We describe the major subsystems of the experiment and its key design features and requirements.
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Measurement of the gamma ray background in the Davis cavern at the Sanford Underground Research Facility

Astroparticle Physics Elsevier 116:March 2020 (2019) 102391

Authors:

Ds Akerib, Cw Akerlof, Sk Alsum, Ke Boast, C Carels, A Cottle, T Fruth

Abstract:

Deep underground environments are ideal for low background searches due to the attenuation of cosmic rays by passage through the earth. However, they are affected by backgrounds from γ-rays emitted by 40K and the 238U and 232Th decay chains in the surrounding rock. The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a liquid xenon TPC located within the Davis campus at the Sanford Underground Research Facility, Lead, South Dakota, at the 4850-foot level. In order to characterise the cavern background, in-situ γ-ray measurements were taken with a sodium iodide detector in various locations and with lead shielding. The integral count rates (0–3300 keV) varied from 596 Hz to 1355 Hz for unshielded measurements, corresponding to a total flux from the cavern walls of 1.9 ± 0.4 γ cm−2s−1. The resulting activity in the walls of the cavern can be characterised as 220 ± 60 Bq/kg of 40K, 29 ± 15 Bq/kg of 238U, and 13 ± 3 Bq/kg of 232Th.
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Triplet lifetime in gaseous argon

The European Physical Journal A Springer Nature 55:10 (2019) 176

Authors:

Michael Akashi-Ronquest, Amanda Bacon, Christopher Benson, Kolahal Bhattacharya, Thomas Caldwell, Joseph A Formaggio, Dan Gastler, Brianna Grado-White, Jeff Griego, Michael Gold, Andrew Hime, Christopher M Jackson, Stephen Jaditz, Chris Kachulis, Edward Kearns, Joshua R Klein, Antonio Ledesma, Steve Linden, Frank Lopez, Sean MacMullin, Andrew Mastbaum, Jocelyn Monroe, James Nikkel, John Oertel, Gabriel D Orebi Gann, Gabriel S Ortega, Kimberley Palladino, Keith Rielage, Stanley R Seibert, Jui-Jen Wang
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Improved measurements of the β-decay response of liquid xenon with the LUX detector

Physical Review D American Physical Society (APS) 100:2 (2019) 022002

Authors:

DS Akerib, S Alsum, HM Araújo, X Bai, J Balajthy, A Baxter, P Beltrame, EP Bernard, A Bernstein, TP Biesiadzinski, EM Boulton, B Boxer, P Brás, S Burdin, D Byram, MC Carmona-Benitez, C Chan, JE Cutter, L de Viveiros, E Druszkiewicz, SR Fallon, A Fan, S Fiorucci, RJ Gaitskell, J Genovesi, C Ghag, MGD Gilchriese, C Gwilliam, CR Hall, SJ Haselschwardt, SA Hertel, DP Hogan, M Horn, DQ Huang, CM Ignarra, RG Jacobsen, O Jahangir, W Ji, K Kamdin, K Kazkaz, D Khaitan, EV Korolkova, S Kravitz, VA Kudryavtsev, E Leason, BG Lenardo, KT Lesko, J Liao, J Lin, A Lindote, MI Lopes, A Manalaysay, RL Mannino, N Marangou, MF Marzioni, DN McKinsey, D-M Mei, M Moongweluwan, JA Morad, A St. J. Murphy, A Naylor, C Nehrkorn, HN Nelson, F Neves, A Nilima, KC Oliver-Mallory, KJ Palladino, EK Pease, Q Riffard, GRC Rischbieter, C Rhyne, P Rossiter, S Shaw, TA Shutt, C Silva, M Solmaz, VN Solovov, P Sorensen, TJ Sumner, M Szydagis, DJ Taylor, R Taylor, WC Taylor, BP Tennyson, PA Terman, DR Tiedt, WH To, M Tripathi, L Tvrznikova, U Utku, S Uvarov, A Vacheret, V Velan, RC Webb, JT White, TJ Whitis, MS Witherell, FLH Wolfs, D Woodward, J Xu, C Zhang
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Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data

Physical Review Letters American Physical Society (APS) 122:13 (2019) 131301

Authors:

DS Akerib, S Alsum, HM Araújo, X Bai, J Balajthy, P Beltrame, EP Bernard, A Bernstein, TP Biesiadzinski, EM Boulton, B Boxer, P Brás, S Burdin, D Byram, MC Carmona-Benitez, C Chan, JE Cutter, TJR Davison, E Druszkiewicz, SR Fallon, A Fan, S Fiorucci, RJ Gaitskell, J Genovesi, C Ghag, MGD Gilchriese, C Gwilliam, CR Hall, SJ Haselschwardt, SA Hertel, DP Hogan, M Horn, DQ Huang, CM Ignarra, RG Jacobsen, O Jahangir, W Ji, K Kamdin, K Kazkaz, D Khaitan, R Knoche, EV Korolkova, S Kravitz, VA Kudryavtsev, BG Lenardo, KT Lesko, J Liao, J Lin, A Lindote, MI Lopes, A Manalaysay, RL Mannino, N Marangou, MF Marzioni, DN McKinsey, D-M Mei, M Moongweluwan, JA Morad, A St J Murphy, A Naylor, C Nehrkorn, HN Nelson, F Neves, KC Oliver-Mallory, KJ Palladino, EK Pease, Q Riffard, GRC Rischbieter, C Rhyne, P Rossiter, S Shaw, TA Shutt, C Silva, M Solmaz, VN Solovov, P Sorensen, TJ Sumner, M Szydagis, DJ Taylor, WC Taylor, BP Tennyson, PA Terman, DR Tiedt, WH To, M Tripathi, L Tvrznikova, U Utku, S Uvarov, V Velan, RC Webb, JT White, TJ Whitis, MS Witherell, FLH Wolfs, D Woodward, J Xu, K Yazdani, C Zhang
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