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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

Nuclear Recoil Calibration at Sub-keV Energies in LUX and Its Impact on Dark Matter Search Sensitivity.

Physical review letters 134:6 (2025) 061002

Authors:

DS Akerib, S Alsum, HM Araújo, X Bai, J Balajthy, J Bang, A Baxter, 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, A Fan, S Fiorucci, RJ Gaitskell, 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, KT Lesko, J Liao, J Lin, A Lindote, MI Lopes, A Manalaysay, RL Mannino, N Marangou, DN McKinsey, D-M Mei, JA Morad, A St J Murphy, A Naylor, C Nehrkorn, HN Nelson, F Neves, A Nilima, KC Oliver-Mallory, KJ Palladino, C Rhyne, Q Riffard, GRC Rischbieter, P Rossiter, S Shaw, TA Shutt, C Silva, M Solmaz, VN Solovov, P Sorensen, TJ Sumner, N Swanson, M Szydagis, DJ Taylor, R Taylor, WC Taylor, BP Tennyson, PA Terman, DR Tiedt, WH To, L Tvrznikova, U Utku, A Vacheret, A Vaitkus, V Velan, RC Webb, JT White, TJ Whitis, MS Witherell, FLH Wolfs, D Woodward, X Xiang, J Xu, C Zhang

Abstract:

Dual-phase xenon time projection chamber (TPC) detectors offer heightened sensitivities for dark matter detection across a spectrum of particle masses. To broaden their capability to low-mass dark matter interactions, we investigated the light and charge responses of liquid xenon (LXe) to sub-keV nuclear recoils. Using neutron events from a pulsed Adelphi Deuterium-Deuterium neutron generator, an in situ calibration was conducted on the LUX detector. We demonstrate direct measurements of light and charge yields down to 0.45 and 0.27 keV, respectively, both approaching single quanta production, the physical limit of LXe detectors. These results hold significant implications for the future of dual-phase xenon TPCs in detecting low-mass dark matter via nuclear recoils.
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Two-neutrino double electron capture of 124Xe in the first LUX-ZEPLIN exposure

Journal of Physics G Nuclear and Particle Physics IOP Publishing 52:1 (2025) 015103

Authors:

J Aalbers, DS Akerib, AK Al Musalhi, F Alder, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, A Baker, S Balashov, J Bang, JW Bargemann, EE Barillier, K Beattie, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, E Bishop, GM Blockinger, B Boxer, CAJ Brew, P Brás, S Burdin, M Buuck, MC Carmona-Benitez, M Carter, A Chawla, H Chen, YT Chin, NI Chott, MV Converse, R Coronel, A Cottle, G Cox, D Curran, CE Dahl, A David, J Delgaudio, S Dey, L de Viveiros, L Di Felice, C Ding, JEY Dobson, E Druszkiewicz, S Dubey, SR Eriksen, A Fan, NM Fearon, N Fieldhouse, S Fiorucci, H Flaecher, ED Fraser, TMA Fruth, RJ Gaitskell, A Geffre, J Genovesi, C Ghag, R Gibbons, S Gokhale, J Green, MGD van der Grinten, JJ Haiston, CR Hall, S Han, E Hartigan-OConnor, SJ Haselschwardt, MA Hernandez, SA Hertel, G Heuermann, GJ Homenides, M Horn, DQ Huang, D Hunt, E Jacquet, RS James, J Johnson, AC Kaboth, AC Kamaha, M Kannichankandy, D Khaitan, A Khazov, I Khurana, J Kim, YD Kim, J Kingston, R Kirk, D Kodroff, L Korley, EV Korolkova, H Kraus, S Kravitz, L Kreczko, VA Kudryavtsev, DS Leonard, KT Lesko, C Levy, J Lin, A Lindote, WH Lippincott, MI Lopes, W Lorenzon, C Lu, S Luitz, PA Majewski, A Manalaysay, RL Mannino, C Maupin, ME McCarthy, G McDowell, DN McKinsey, J McLaughlin, JB McLaughlin, R McMonigle, E Mizrachi, A Monte, ME Monzani, E Morrison, BJ Mount, M Murdy, ASJ Murphy, A Naylor, HN Nelson, F Neves, A Nguyen, CL O’Brien, I Olcina, KC Oliver-Mallory, J Orpwood, KY Oyulmaz, KJ Palladino, J Palmer, NJ Pannifer, N Parveen, SJ Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, Y Qie, J Reichenbacher, CA Rhyne, Q Riffard, GRC Rischbieter, E Ritchey, HS Riyat, R Rosero, T Rushton, D Rynders, D Santone, ABMR Sazzad, RW Schnee, G Sehr, B Shafer, S Shaw, T Shutt, JJ Silk, C Silva, G Sinev, J Siniscalco, R Smith, VN Solovov, P Sorensen, J Soria, A Stevens, K Stifter, B Suerfu, TJ Sumner, M Szydagis, DR Tiedt, M Timalsina, Z Tong, DR Tovey, J Tranter, M Trask, M Tripathi, A Vacheret, AC Vaitkus, O Valentino, V Velan, A Wang, JJ Wang, Y Wang, JR Watson, L Weeldreyer, TJ Whitis, K Wild, M Williams, WJ Wisniewski, L Wolf, FLH Wolfs, S Woodford, D Woodward, CJ Wright, Q Xia, J Xu, Y Xu, M Yeh, D Yeum, W Zha, EA Zweig
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Constraints on Covariant Dark-Matter-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment.

Physical review letters 133:22 (2024) 221801

Authors:

J Aalbers, DS Akerib, AK Al Musalhi, F Alder, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, A Baker, S Balashov, J Bang, EE Barillier, JW Bargemann, K Beattie, T Benson, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, EJ Bishop, GM Blockinger, B Boxer, CAJ Brew, P Brás, S Burdin, M Buuck, MC Carmona-Benitez, M Carter, A Chawla, H Chen, JJ Cherwinka, YT Chin, NI Chott, MV Converse, A Cottle, G Cox, D Curran, CE Dahl, A David, J Delgaudio, S Dey, L de Viveiros, L Di Felice, C Ding, JEY Dobson, E Druszkiewicz, SR Eriksen, A Fan, NM Fearon, S Fiorucci, H Flaecher, ED Fraser, TMA Fruth, RJ Gaitskell, A Geffre, J Genovesi, C Ghag, R Gibbons, S Gokhale, J Green, MGD van der Grinten, JJ Haiston, CR Hall, S Han, E Hartigan-O'Connor, SJ Haselschwardt, MA Hernandez, SA Hertel, G Heuermann, GJ Homenides, M Horn, DQ Huang, D Hunt, E Jacquet, RS James, J Johnson, AC Kaboth, AC Kamaha, M Kannichankandy, D Khaitan, A Khazov, I Khurana, JD Kim, J Kim, J Kingston, R Kirk, D Kodroff, L Korley, EV Korolkova, H Kraus, S Kravitz, L Kreczko, VA Kudryavtsev, DS Leonard, KT Lesko, C Levy, J Lin, A Lindote, R Linehan, WH Lippincott, MI Lopes, W Lorenzon, C Lu, S Luitz, PA Majewski, A Manalaysay, RL Mannino, C Maupin, ME McCarthy, G McDowell, DN McKinsey, J McLaughlin, JB McLaughlin, R McMonigle, EH Miller, E Mizrachi, A Monte, ME Monzani, JD Morales Mendoza, E Morrison, BJ Mount, M Murdy, A St J Murphy, A Naylor, HN Nelson, F Neves, A Nguyen, JA Nikoleyczik, I Olcina, KC Oliver-Mallory, J Orpwood, KJ Palladino, J Palmer, NJ Pannifer, N Parveen, SJ Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, Y Qie, J Reichenbacher, CA Rhyne, Q Riffard, GRC Rischbieter, HS Riyat, R Rosero, T Rushton, D Rynders, D Santone, ABMR Sazzad, RW Schnee, S Shaw, T Shutt, JJ Silk, C Silva, G Sinev, J Siniscalco, R Smith, VN Solovov, P Sorensen, J Soria, I Stancu, A Stevens, K Stifter, B Suerfu, TJ Sumner, M Szydagis, WC Taylor, DR Tiedt, M Timalsina, Z Tong, DR Tovey, J Tranter, M Trask, M Tripathi, DR Tronstad, A Vacheret, AC Vaitkus, O Valentino, V Velan, A Wang, JJ Wang, Y Wang, JR Watson, RC Webb, L Weeldreyer, TJ Whitis, M Williams, WJ Wisniewski, FLH Wolfs, S Woodford, D Woodward, CJ Wright, Q Xia, X Xiang, J Xu, M Yeh, EA Zweig, LZ Collaboration

Abstract:

The LUX-ZEPLIN (LZ) experiment is a dual-phase xenon time project chamber operating in the Sanford Underground Research Facility in South Dakota, USA. We report on the results of a relativistic extension to the nonrelativistic effective field theory (NREFT) from a 5.5 t fiducial mass and 60 live days of exposure. We present constraints on couplings from covariant interactions arising from the coupling of vector, axial currents, and electric dipole moments of the nucleon to the magnetic and electric dipole moments of the weakly interacting massive particle which cannot be described by recasting previous results described by an NREFT. Using a profile-likelihood ratio analysis, in an energy region between 0  keV_{nr} to 270  keV_{nr}, we report 90% confidence level exclusion limits on the coupling strength of five interactions in both the isoscalar and isovector bases.
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The data acquisition system of the LZ dark matter detector: FADR

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 1068 (2024) 169712

Authors:

J Aalbers, DS Akerib, AK Al Musalhi, F Alder, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, A Baker, S Balashov, J Bang, EE Barillier, JW Bargemann, K Beattie, T Benson, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, E Bishop, GM Blockinger, B Boxer, CAJ Brew, P Brás, JH Buckley, S Burdin, M Buuck, MC Carmona-Benitez, M Carter, A Chawla, H Chen, JJ Cherwinka, YT Chin, NI Chott, MV Converse, A Cottle, G Cox, D Curran, CE Dahl, A David, J Delgaudio, S Dey, L de Viveiros, L Di Felice, T Dimino, C Ding, JEY Dobson, E Druszkiewicz, SR Eriksen, A Fan, NM Fearon, N Fieldhouse, S Fiorucci, H Flaecher, ED Fraser, TMA Fruth, RJ Gaitskell, A Geffre, R Gelfand, J Genovesi, C Ghag, R Gibbons, S Gokhale, J Green, MGD van der Grinten, JJ Haiston, CR Hall, S Han, E Hartigan-O’Connor, SJ Haselschwardt, MA Hernandez, SA Hertel, G Heuermann, GJ Homenides, M Horn, DQ Huang, D Hunt, E Jacquet, RS James, J Johnson, AC Kaboth, AC Kamaha, M Kannichankandy, D Khaitan, A Khazov, I Khurana, J Kim, YD Kim, J Kingston, R Kirk, D Kodroff, L Korley, EV Korolkova, M Koyuncu, H Kraus, S Kravitz, L Kreczko, VA Kudryavtsev, DS Leonard, KT Lesko, C Levy, J Lin, A Lindote, R Linehan, WH Lippincott, C Loniewski, MI Lopes, W Lorenzon, C Lu, S Luitz, PA Majewski, A Manalaysay, RL Mannino, C Maupin, ME McCarthy, G McDowell, DN McKinsey, J McLaughlin, JB Mclaughlin, R McMonigle, EH Miller, E Mizrachi, A Monte, ME Monzani, M Moongweluwan, JD Morales Mendoza, E Morrison, BJ Mount, M Murdy, Murphy, A Naylor, HN Nelson, F Neves, A Nguyen, JA Nikoleyczik, H Oh, I Olcina, MA Olevitch, KC Oliver-Mallory, J Orpwood, KJ Palladino, J Palmer, NJ Pannifer, N Parveen, SJ Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, Y Qie, J Reichenbacher, CA Rhyne, Q Riffard, GRC Rischbieter, HS Riyat, R Rosero, T Rushton, D Rynders, D Santone, R Sarkis, ABMR Sazzad, RW Schnee, S Shaw, T Shutt, JJ Silk, C Silva, G Sinev, J Siniscalco, W Skulski, R Smith, VN Solovov, P Sorensen, J Soria, I Stancu, A Stevens, K Stifter, B Suerfu, TJ Sumner, M Szydagis, WC Taylor, DR Tiedt, M Timalsina, Z Tong, DR Tovey, J Tranter, M Trask, M Tripathi, DR Tronstad, A Vacheret, AC Vaitkus, J Vaitkus, O Valentino, V Velan, A Wang, JJ Wang, Y Wang, JR Watson, RC Webb, L Weeldreyer, TJ Whitis, M Williams, WJ Wisniewski, FLH Wolfs, JD Wolfs, S Woodford, D Woodward, CJ Wright, Q Xia, X Xiang, J Xu, M Yeh, J Yin
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Probing the scalar WIMP-pion coupling with the first LUX-ZEPLIN data

Communications Physics Springer Nature 7:1 (2024) 292

Authors:

J Aalbers, DS Akerib, AK Al Musalhi, F Alder, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, A Baker, S Balashov, J Bang, EE Barillier, JW Bargemann, K Beattie, T Benson, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, EJ Bishop, GM Blockinger, B Boxer, CAJ Brew, P Brás, S Burdin, M Buuck, MC Carmona-Benitez, M Carter, A Chawla, H Chen, JJ Cherwinka, YT Chin, NI Chott, MV Converse, A Cottle, G Cox, D Curran, CE Dahl, A David, J Delgaudio, S Dey, L de Viveiros, L Di Felice, C Ding, JEY Dobson, E Druszkiewicz, SR Eriksen, A Fan, NM Fearon, N Fieldhouse, S Fiorucci, H Flaecher, ED Fraser, TMA Fruth, RJ Gaitskell, A Geffre, J Genovesi, C Ghag, R Gibbons, S Gokhale, J Green, MGD van der Grinten, JJ Haiston, CR Hall, S Han, E Hartigan-O’Connor, SJ Haselschwardt, MA Hernandez, SA Hertel, G Heuermann, GJ Homenides, M Horn, DQ Huang, D Hunt, E Jacquet, RS James, J Johnson, AC Kaboth, AC Kamaha, M Kannichankandy, D Khaitan, A Khazov, I Khurana, YD Kim, J Kim, J Kingston, R Kirk, D Kodroff, L Korley, EV Korolkova, H Kraus, S Kravitz, L Kreczko, VA Kudryavtsev, DS Leonard, KT Lesko, C Levy, J Lin, A Lindote, R Linehan, WH Lippincott, MI Lopes, W Lorenzon, C Lu, S Luitz, PA Majewski, A Manalaysay, RL Mannino, C Maupin, ME McCarthy, G McDowell, DN McKinsey, J McLaughlin, JB McLaughlin, R McMonigle, EH Miller, E Mizrachi, A Monte, ME Monzani, JD Morales Mendoza, E Morrison, BJ Mount, M Murdy, A St. J. Murphy, A Naylor, HN Nelson, F Neves, A Nguyen, JA Nikoleyczik, I Olcina, KC Oliver-Mallory, J Orpwood, KJ Palladino, J Palmer, NJ Pannifer, N Parveen, SJ Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, Y Qie, J Reichenbacher, CA Rhyne, Q Riffard, GRC Rischbieter, HS Riyat, R Rosero, T Rushton, D Rynders, D Santone, ABMR Sazzad, RW Schnee, S Shaw, T Shutt, JJ Silk, C Silva, G Sinev, J Siniscalco, R Smith, VN Solovov, P Sorensen, J Soria, I Stancu, A Stevens, K Stifter, B Suerfu, TJ Sumner, M Szydagis, WC Taylor, DR Tiedt, M Timalsina, Z Tong, DR Tovey, J Tranter, M Trask, M Tripathi, DR Tronstad, A Vacheret, AC Vaitkus, O Valentino, V Velan, A Wang, JJ Wang, Y Wang, JR Watson, RC Webb, L Weeldreyer, TJ Whitis, M Williams, WJ Wisniewski, FLH Wolfs, S Woodford, D Woodward, CJ Wright, Q Xia, X Xiang, J Xu, M Yeh, EA Zweig
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