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1. Erratum to: The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

Author

D. S. Akerib, C. W. Akerlof, D. Yu. Akimov, A. Alquahtani, S. K. Alsum, T. J. Anderson, N. Angelides, H. M. Araújo, A. Arbuckle, J. E. Armstrong, M. Arthurs, H. Auyeung, S. Aviles, X. Bai, A. J. Bailey, J. Balajthy, S. Balashov, J. Bang, M. J. Barry, D. Bauer, P. Bauer, A. Baxter, J. Belle, P. Beltrame, J. Bensinger, T. Benson, E. P. Bernard, A. Bernstein, A. Bhatti, A. Biekert, T. P. Biesiadzinski, H. J. Birch, B. Birrittella, K. E. Boast, A. I. Bolozdynya, E. M. Boulton, B. Boxer, R. Bramante, S. Branson, P. Brás, M. Breidenbach, C. A. J. Brew, J. H. Buckley, V. V. Bugaev, R. Bunker, S. Burdin, J. K. Busenitz, R. Cabrita, J. S. Campbell, C. Carels, D. L. Carlsmith, B. Carlson, M. C. Carmona-Benitez, M. Cascella, C. Chan, J. J. Cherwinka, A. A. Chiller, C. Chiller, N. I. Chott, A. Cole, J. Coleman, D. Colling, R. A. Conley, A. Cottle, R. Coughlen, G. Cox, W. W. Craddock, D. Curran, A. Currie, J. E. Cutter, J. P. da Cunha, C. E. Dahl, S. Dardin, S. Dasu, J. Davis, T. J. R. Davison, L. de Viveiros, N. Decheine, A. Dobi, J. E. Y. Dobson, E. Druszkiewicz, A. Dushkin, T. K. Edberg, W. R. Edwards, B. N. Edwards, J. Edwards, M. M. Elnimr, W. T. Emmet, S. R. Eriksen, C. H. Faham, A. Fan, S. Fayer, S. Fiorucci, H. Flaecher, I. M. Fogarty Florang, P. Ford, V. B. Francis, E. D. Fraser, F. Froborg, T. Fruth, R. J. Gaitskell, N. J. Gantos, D. Garcia, V. M. Gehman, R. Gelfand, J. Genovesi, R. M. Gerhard, C. Ghag, E. Gibson, M. G. D. Gilchriese, S. Gokhale, B. Gomber, T. G. Gonda, A. Greenall, S. Greenwood, G. Gregerson, M. G. D. van der Grinten, C. B. Gwilliam, C. R. Hall, D. Hamilton, S. Hans, K. Hanzel, T. Harrington, A. Harrison, J. Harrison, C. Hasselkus, S. J. Haselschwardt, D. Hemer, S. A. Hertel, J. Heise, S. Hillbrand, O. Hitchcock, C. Hjemfelt, M. D. Hoff, B. Holbrook, E. Holtom, J. Y-K. Hor, M. Horn, D. Q. Huang, T. W. Hurteau, C. M. Ignarra, M. N. Irving, R. G. Jacobsen, O. Jahangir, S. N. Jeffery, W. Ji, M. Johnson, J. Johnson, P. Johnson, W. G. Jones, A. C. Kaboth, A. Kamaha, K. Kamdin, V. Kasey, K. Kazkaz, J. Keefner, D. Khaitan, M. Khaleeq, A. Khazov, A. V. Khromov, I. Khurana, Y. D. Kim, W. T. Kim, C. D. Kocher, D. Kodroff, A. M. Konovalov, L. Korley, E. V. Korolkova, M. Koyuncu, J. Kras, H. Kraus, S. W. Kravitz, H. J. Krebs, L. Kreczko, B. Krikler, V. A. Kudryavtsev, A. V. Kumpan, S. Kyre, A. R. Lambert, B. Landerud, N. A. Larsen, A. Laundrie, E. A. Leason, H. S. Lee, J. Lee, C. Lee, B. G. Lenardo, D. S. Leonard, R. Leonard, K. T. Lesko, C. Levy, J. Li, Y. Liu, J. Liao, F.-T. Liao, J. Lin, A. Lindote, R. Linehan, W. H. Lippincott, R. Liu, X. Liu, C. Loniewski, M. I. Lopes, E. Lopez-Asamar, B. López Paredes, W. Lorenzon, D. Lucero, S. Luitz, J. M. Lyle, C. Lynch, P. A. Majewski, J. Makkinje, D. C. Malling, A. Manalaysay, L. Manenti, R. L. Mannino, N. Marangou, D. J. Markley, P. MarrLaundrie, T. J. Martin, M. F. Marzioni, C. Maupin, C. T. McConnell, D. N. McKinsey, J. McLaughlin, D.-M. Mei, Y. Meng, E. H. Miller, Z. J. Minaker, E. Mizrachi, J. Mock, D. Molash, A. Monte, M. E. Monzani, J. A. Morad, E. Morrison, B. J. Mount, A. St. J. Murphy, D. Naim, A. Naylor, C. Nedlik, C. Nehrkorn, H. N. Nelson, J. Nesbit, F. Neves, J. A. Nikkel, J. A. Nikoleyczik, A. Nilima, J. O’Dell, H. Oh, F. G. O’Neill, K. O’Sullivan, I. Olcina, M. A. Olevitch, K. C. Oliver-Mallory, L. Oxborough, A. Pagac, D. Pagenkopf, S. Pal, K. J. Palladino, V. M. Palmaccio, J. Palmer, M. Pangilinan, N. Parveen, S. J. Patton, E. K. Pease, B. P. Penning, G. Pereira, C. Pereira, I. B. Peterson, A. Piepke, S. Pierson, S. Powell, R. M. Preece, K. Pushkin, Y. Qie, M. Racine, B. N. Ratcliff, J. Reichenbacher, L. Reichhart, C. A. Rhyne, A. Richards, Q. Riffard, G. R. C. Rischbieter, J. P. Rodrigues, H. J. Rose, R. Rosero, P. Rossiter, R. Rucinski, G. Rutherford, J. S. Saba, L. Sabarots, D. Santone, M. Sarychev, A. B. M. R. Sazzad, R. W. Schnee, M. Schubnell, P. R. Scovell, M. Severson, D. Seymour, S. Shaw, G. W. Shutt, T. A. Shutt, J. J. Silk, C. Silva, K. Skarpaas, W. Skulski, A. R. Smith, R. J. Smith, R. E. Smith, J. So, M. Solmaz, V. N. Solovov, P. Sorensen, V. V. Sosnovtsev, I. Stancu, M. R. Stark, S. Stephenson, N. Stern, A. Stevens, T. M. Stiegler, K. Stifter, R. Studley, T. J. Sumner, K. Sundarnath, P. Sutcliffe, N. Swanson, M. Szydagis, M. Tan, W. C. Taylor, R. Taylor, D. J. Taylor, D. Temples, B. P. Tennyson, P. A. Terman, K. J. Thomas, J. A. Thomson, D. R. Tiedt, M. Timalsina, W. H. To, A. Tomás, T. E. Tope, M. Tripathi, D. R. Tronstad, C. E. Tull, W. Turner, L. Tvrznikova, M. Utes, U. Utku, S. Uvarov, J. Va’vra, A. Vacheret, A. Vaitkus, J. R. Verbus, T. Vietanen, E. Voirin, C. O. Vuosalo, S. Walcott, W. L. Waldron, K. Walker, J. J. Wang, R. Wang, L. Wang, W. Wang, Y. Wang, J. R. Watson, J. Migneault, S. Weatherly, R. C. Webb, W.-Z. Wei, M. While, R. G. White, J. T. White, D. T. White, T. J. Whitis, W. J. Wisniewski, K. Wilson, M. S. Witherell, F. L. H. Wolfs, J. D. Wolfs, D. Woodward, S. D. Worm, X. Xiang, Q. Xiao, J. Xu, M. Yeh, J. Yin, I. Young, C. Zhang, and P. Zarzhitsky

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Published
2022
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2. The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

Author

D. S. Akerib, C. W. Akerlof, D. Yu. Akimov, A. Alquahtani, S. K. Alsum, T. J. Anderson, N. Angelides, H. M. Araújo, A. Arbuckle, J. E. Armstrong, M. Arthurs, H. Auyeung, S. Aviles, X. Bai, A. J. Bailey, J. Balajthy, S. Balashov, J. Bang, M. J. Barry, D. Bauer, P. Bauer, A. Baxter, J. Belle, P. Beltrame, J. Bensinger, T. Benson, E. P. Bernard, A. Bernstein, A. Bhatti, A. Biekert, T. P. Biesiadzinski, H. J. Birch, B. Birrittella, K. E. Boast, A. I. Bolozdynya, E. M. Boulton, B. Boxer, R. Bramante, S. Branson, P. Brás, M. Breidenbach, C. A. J. Brew, J. H. Buckley, V. V. Bugaev, R. Bunker, S. Burdin, J. K. Busenitz, R. Cabrita, J. S. Campbell, C. Carels, D. L. Carlsmith, B. Carlson, M. C. Carmona-Benitez, M. Cascella, C. Chan, J. J. Cherwinka, A. A. Chiller, C. Chiller, N. I. Chott, A. Cole, J. Coleman, D. Colling, R. A. Conley, A. Cottle, R. Coughlen, G. Cox, W. W. Craddock, D. Curran, A. Currie, J. E. Cutter, J. P. da Cunha, C. E. Dahl, S. Dardin, S. Dasu, J. Davis, T. J. R. Davison, L. de Viveiros, N. Decheine, A. Dobi, J. E. Y. Dobson, E. Druszkiewicz, A. Dushkin, T. K. Edberg, W. R. Edwards, B. N. Edwards, J. Edwards, M. M. Elnimr, W. T. Emmet, S. R. Eriksen, C. H. Faham, A. Fan, S. Fayer, S. Fiorucci, H. Flaecher, I. M. Fogarty Florang, P. Ford, V. B. Francis, E. D. Fraser, F. Froborg, T. Fruth, R. J. Gaitskell, N. J. Gantos, D. Garcia, V. M. Gehman, R. Gelfand, J. Genovesi, R. M. Gerhard, C. Ghag, E. Gibson, M. G. D. Gilchriese, S. Gokhale, B. Gomber, T. G. Gonda, A. Greenall, S. Greenwood, G. Gregerson, M. G. D. van der Grinten, C. B. Gwilliam, C. R. Hall, D. Hamilton, S. Hans, K. Hanzel, T. Harrington, A. Harrison, J. Harrison, C. Hasselkus, S. J. Haselschwardt, D. Hemer, S. A. Hertel, J. Heise, S. Hillbrand, O. Hitchcock, C. Hjemfelt, M. D. Hoff, B. Holbrook, E. Holtom, J. Y-K. Hor, M. Horn, D. Q. Huang, T. W. Hurteau, C. M. Ignarra, M. N. Irving, R. G. Jacobsen, O. Jahangir, S. N. Jeffery, W. Ji, M. Johnson, J. Johnson, P. Johnson, W. G. Jones, A. C. Kaboth, A. Kamaha, K. Kamdin, V. Kasey, K. Kazkaz, J. Keefner, D. Khaitan, M. Khaleeq, A. Khazov, A. V. Khromov, I. Khurana, Y. D. Kim, W. T. Kim, C. D. Kocher, D. Kodroff, A. M. Konovalov, L. Korley, E. V. Korolkova, M. Koyuncu, J. Kras, H. Kraus, S. W. Kravitz, H. J. Krebs, L. Kreczko, B. Krikler, V. A. Kudryavtsev, A. V. Kumpan, S. Kyre, A. R. Lambert, B. Landerud, N. A. Larsen, A. Laundrie, E. A. Leason, H. S. Lee, J. Lee, C. Lee, B. G. Lenardo, D. S. Leonard, R. Leonard, K. T. Lesko, C. Levy, J. Li, Y. Liu, J. Liao, F.-T. Liao, J. Lin, A. Lindote, R. Linehan, W. H. Lippincott, R. Liu, X. Liu, C. Loniewski, M. I. Lopes, E. Lopez-Asamar, B. López Paredes, W. Lorenzon, D. Lucero, S. Luitz, J. M. Lyle, C. Lynch, P. A. Majewski, J. Makkinje, D. C. Malling, A. Manalaysay, L. Manenti, R. L. Mannino, N. Marangou, D. J. Markley, P. MarrLaundrie, T. J. Martin, M. F. Marzioni, C. Maupin, C. T. McConnell, D. N. McKinsey, J. McLaughlin, D.-M. Mei, Y. Meng, E. H. Miller, Z. J. Minaker, E. Mizrachi, J. Mock, D. Molash, A. Monte, M. E. Monzani, J. A. Morad, E. Morrison, B. J. Mount, A. St. J. Murphy, D. Naim, A. Naylor, C. Nedlik, C. Nehrkorn, H. N. Nelson, J. Nesbit, F. Neves, J. A. Nikkel, J. A. Nikoleyczik, A. Nilima, J. O’Dell, H. Oh, F. G. O’Neill, K. O’Sullivan, I. Olcina, M. A. Olevitch, K. C. Oliver-Mallory, L. Oxborough, A. Pagac, D. Pagenkopf, S. Pal, K. J. Palladino, V. M. Palmaccio, J. Palmer, M. Pangilinan, N. Parveen, S. J. Patton, E. K. Pease, B. P. Penning, G. Pereira, C. Pereira, I. B. Peterson, A. Piepke, S. Pierson, S. Powell, R. M. Preece, K. Pushkin, Y. Qie, M. Racine, B. N. Ratcliff, J. Reichenbacher, L. Reichhart, C. A. Rhyne, A. Richards, Q. Riffard, G. R. C. Rischbieter, J. P. Rodrigues, H. J. Rose, R. Rosero, P. Rossiter, R. Rucinski, G. Rutherford, J. S. Saba, L. Sabarots, D. Santone, M. Sarychev, A. B. M. R. Sazzad, R. W. Schnee, M. Schubnell, P. R. Scovell, M. Severson, D. Seymour, S. Shaw, G. W. Shutt, T. A. Shutt, J. J. Silk, C. Silva, K. Skarpaas, W. Skulski, A. R. Smith, R. J. Smith, R. E. Smith, J. So, M. Solmaz, V. N. Solovov, P. Sorensen, V. V. Sosnovtsev, I. Stancu, M. R. Stark, S. Stephenson, N. Stern, A. Stevens, T. M. Stiegler, K. Stifter, R. Studley, T. J. Sumner, K. Sundarnath, P. Sutcliffe, N. Swanson, M. Szydagis, M. Tan, W. C. Taylor, R. Taylor, D. J. Taylor, D. Temples, B. P. Tennyson, P. A. Terman, K. J. Thomas, J. A. Thomson, D. R. Tiedt, M. Timalsina, W. H. To, A. Tomás, T. E. Tope, M. Tripathi, D. R. Tronstad, C. E. Tull, W. Turner, L. Tvrznikova, M. Utes, U. Utku, S. Uvarov, J. Va’vra, A. Vacheret, A. Vaitkus, J. R. Verbus, T. Vietanen, E. Voirin, C. O. Vuosalo, S. Walcott, W. L. Waldron, K. Walker, J. J. Wang, R. Wang, L. Wang, W. Wang, Y. Wang, J. R. Watson, J. Migneault, S. Weatherly, R. C. Webb, W.-Z. Wei, M. While, R. G. White, J. T. White, D. T. White, T. J. Whitis, W. J. Wisniewski, K. Wilson, M. S. Witherell, F. L. H. Wolfs, J. D. Wolfs, D. Woodward, S. D. Worm, X. Xiang, Q. Xiao, J. Xu, M. Yeh, J. Yin, I. Young, C. Zhang, and P. Zarzhitsky

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract LUX-ZEPLIN (LZ) is a second-generation direct dark matter experiment with spin-independent WIMP-nucleon scattering sensitivity above $${1.4 \times 10^{-48}}\, {\hbox {cm}}^{2}$$ 1.4 × 10 - 48 cm 2 for a WIMP mass of $${40}\, \hbox {GeV}/{\hbox {c}}^{2}$$ 40 GeV / c 2 and a $${1000}\, \hbox {days}$$ 1000 days exposure. LZ achieves this sensitivity through a combination of a large $${5.6}\, \hbox {t}$$ 5.6 t fiducial volume, active inner and outer veto systems, and radio-pure construction using materials with inherently low radioactivity content. The LZ collaboration performed an extensive radioassay campaign over a period of six years to inform material selection for construction and provide an input to the experimental background model against which any possible signal excess may be evaluated. The campaign and its results are described in this paper. We present assays of dust and radon daughters depositing on the surface of components as well as cleanliness controls necessary to maintain background expectations through detector construction and assembly. Finally, examples from the campaign to highlight fixed contaminant radioassays for the LZ photomultiplier tubes, quality control and quality assurance procedures through fabrication, radon emanation measurements of major sub-systems, and bespoke detector systems to assay scintillator are presented.

Published
2020
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3. The LUX-ZEPLIN (LZ) Experiment

Author

P. Sorensen, J. C. Davis, J. J. Silk, M. C. Carmona-Benitez, E. Holtom, T. J. Anderson, A. B.M.R. Sazzad, V.V. Sosnovtsev, J. J. Cherwinka, V. B. Francis, A. Naylor, L. Korley, K. Kamdin, W. Craddock, P. Beltrame, X. Xiang, A. Manalaysay, P. R. Scovell, D. Q. Huang, Ethan Bernard, B. P. Tennyson, Yue Meng, I. B. Peterson, A. Cottle, A. Biekert, A. Kamaha, M. S. Witherell, R. Studley, M. E. Monzani, J. S. Campbell, Alexander Bolozdynya, C. Chiller, M. G. D. van der Grinten, Matthew Szydagis, C. O. Vuosalo, M. Tan, E. H. Miller, V. Bugaev, B. Boxer, R. Coughlen, J. Liao, I. Stancu, L. de Viveiros, P. MarrLaundrie, A. Lambert, L. Kreczko, J. R. Watson, Michael Schubnell, A. Piepke, S. Greenwood, J. P. Coleman, A. Geffre, D. Bauer, G. W. Shutt, W. H. Lippincott, Y. Qie, Dongming Mei, L. Sabarots, S. Hans, Bhawna Gomber, W. Skulski, J. A. Nikkel, S. A. Hertel, A. Arbuckle, F.-T. Liao, S. R. Eriksen, Daniel McKinsey, E. Druszkiewicz, Jilei Xu, P. Sutcliffe, H. J. Rose, C. Nehrkorn, K. T. Lesko, N. A. Larsen, C. Lee, B. Landerud, Martin Breidenbach, D. Molash, Candace Lynch, W. G. Jones, M. A. Olevitch, Ian S. Young, M. Sarychev, B. N. Edwards, A. Pagac, L. Tvrznikova, P. Ford, S. Luitz, T. J. R. Davison, D. Pagenkopf, P. Majewski, G. Gregerson, Chao Zhang, Mary Severson, A. Currie, Ross G. White, Carl Gwilliam, S. J. Patton, A. J. Bailey, David Colling, Minfang Yeh, K. Wilson, P. Rossiter, S. Alsum, G. Pereira, V. M. Gehman, A. Dushkin, I. Khurana, Richard J. Smith, Benjamin Krikler, N. Marangou, John Heise, C. Loniewski, J. Bang, J. A. Nikoleyczik, J. Belle, D. Yu. Akimov, E. Mizrachi, C. Levy, M. R. While, A. Dobi, H. N. Nelson, X. Bai, J. Johnson, J. O'Dell, W. T. Kim, S. Weatherly, L. Wang, P. Johnson, Elena Korolkova, S. Pierson, W. T. Emmet, K. Stifter, B. Birrittella, T. Tope, A. Richards, Yufeng Wang, Ren-Jie Wang, J. Genovesi, C. Maupin, Kathrin C. Walker, G. R. C. Rischbieter, Eli Gibson, Yeongduk Kim, W. Turner, S. D. Worm, E. M. Boulton, G. Rutherford, S. Kyre, J. Mock, Seth Hillbrand, D. White, Q. Xiao, Sridhara Dasu, R. Leonard, J. Y.K. Hor, B. Holbrook, C. Nedlik, S. Fiorucci, J. Keefner, J. Kras, J. Yin, F. Froborg, F. Neves, D. Khaitan, S. J. Haselschwardt, L. Oxborough, D.S. Hamilton, O. Hitchcock, J.P. da Cunha, J.S. Saba, Henrique Araujo, I. Olcina, David Leonard, A. Bhatti, U. Utku, W. J. Wisniewski, S. Powell, M. Pangilinan, F.L.H. Wolfs, J. Barthel, D. Naim, D. Hemer, M. Timalsina, B. J. Mount, T. A. Shutt, S. Shaw, J. A. Morad, N. Swanson, J.P. Rodrigues, J. Nesbit, W.L. Waldron, J. E. Y. Dobson, J. Busenitz, C. R. Hall, N. Stern, C. Rhyne, A. Cole, R. J. Gaitskell, T. K. Edberg, Q. Riffard, O. Jahangir, B. G. Lenardo, D. Temples, C. Chan, C. E. Tull, A. Vaitkus, D. Garcia, S. Kravitz, T. G. Gonda, M. Elnimr, K. Pushkin, M. Horn, Kareem Kazkaz, H. Kraus, J. Li, C. H. Faham, T.M. Stiegler, A. Monte, C. D. Kocher, T. P. Biesiadzinski, C. Ghag, J. E. Armstrong, H. S. Lee, W. R. Edwards, K. J. Palladino, T. Benson, J. H. Buckley, Z. J. Minaker, Carl W. Akerlof, R. Bunker, M. Solmaz, M. Koyuncu, J.R. Verbus, J. M. Lyle, C. E. Dahl, E. Morrison, J. E. Cutter, J. Reichenbacher, H.J. Krebs, J. So, S. Branson, Peter Bauer, H. Auyeung, D. Seymour, Michele Cascella, A. A. Chiller, Mani Tripathi, Richard Rosero, D. R. Tronstad, R. Liu, M. Khaleeq, N. Decheine, M. N. Irving, Yunpeng Liu, S. Uvarov, J. McLaughlin, A. R. Smith, S. Dardin, J. Thomson, K. Sundarnath, Robert A. Taylor, Ben Carlson, T. Harrington, C. T. McConnell, E. K. Pease, A. Greenall, T. J. Whitis, M. F. Marzioni, C. Silva, V. Kasey, D. Rynders, R. C. Webb, J. Palmer, P. Brás, V. N. Solovov, T.J. Martin, R. Conley, P. A. Terman, A. Tomás, B. Lopez Paredes, K. E. Boast, J. T. White, D. Markley, A. Konovalov, A. Lindote, A. Alquahtani, L. Reichhart, D.C. Malling, K. C. Oliver-Mallory, E. Leason, Juhyeong Lee, D. Curran, Henning Flaecher, S. Balashov, A.V. Khromov, B. N. Ratcliff, J. Migneault, A. V. Kumpan, Simon Fayer, Antonin Vacheret, C. Hjemfelt, R. Linehan, M. Arthurs, S. Stephenson, V. M. Palmaccio, N. I. Chott, M.R. Stark, Duncan Carlsmith, Wenzhao Wei, M. Utes, Laura Manenti, A. Stevens, D. J. Taylor, R. E. Smith, V. A. Kudryavtsev, S. Walcott, C. M. Ignarra, N.J. Gantos, R. G. Jacobsen, M. Racine, A. Fan, Bjoern Penning, J. Va’vra, A. Harrison, H. Oh, J. Makkinje, W. Ji, R. Rucinski, Sergey Burdin, A. Baxter, D. Santone, E. Voirin, R.M. Gerhard, T.W. Hurteau, K.J. Thomas, X. Liu, R. Gelfand, T. Vietanen, A. Nilima, R. M. Preece, A. Laundrie, Mikkel B. Johnson, K. Hanzel, F. G. O'Neill, A. Khazov, W. C. Taylor, J. Balajthy, M.J. Barry, K. O’Sullivan, D. Lucero, A. C. Kaboth, R. L. Mannino, J. D. Wolfs, J. Lin, C. Pereira, N. Angelides, S. Gokhale, A. St. J. Murphy, Adam Bernstein, M. Hoff, M.I. Lopes, M. G. D. Gilchriese, C. Carels, I. M. Fogarty Florang, J. Edwards, S. N. Jeffery, R. W. Schnee, S. Pal, R. Bramante, T. Fruth, T. J. Sumner, W. H. To, Wolfgang Lorenzon, J. R. Bensinger, J. J. Wang, D. Woodward, C. Hasselkus, K. Skarpaas, D. R. Tiedt, D. S. Akerib, and Science and Technology Facilities Council (STFC)

Subjects
Nuclear and High Energy Physics, Technology, Physics - Instrumentation and Detectors, 0299 Other Physical Sciences, Dark matter, FOS: Physical sciences, chemistry.chemical_element, Scintillator, 01 natural sciences, 7. Clean energy, Physics, Particles & Fields, High Energy Physics - Experiment, Nuclear physics, LEAD, High Energy Physics - Experiment (hep-ex), XENON, Low energy, Xenon, WIMP, 0103 physical sciences, 0201 Astronomical and Space Sciences, 010306 general physics, Nuclear Science & Technology, Underground, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Instruments & Instrumentation, physics.ins-det, Physics, Dark matter detector, Time projection chamber, Science & Technology, 010308 nuclear & particles physics, hep-ex, Detector, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, Neutron capture, Physics, Nuclear, chemistry, Physical Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, Liquid xenon, EMISSION, Astrophysics - Instrumentation and Methods for Astrophysics, astro-ph.IM
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. info:eu-repo/semantics/publishedVersion

Published
2019
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4. Commissioning Test of ATLAS End-Cap Toroidal Magnets

Author

M. Jeckel, D.E. Baynham, O. Pirotte, J. Metselaar, A. Olyunin, J. Buskop, F.S. Carr, E. Holtom, Arnaud Foussat, K. Barth, J. Bremer, N. Delruelle, G. Olesen, S. Ravat, V. Stepanov, E. Sbrissa, L. Deront, H. Ten Kate, Alexey Dudarev, N. Kopeykin, R. Pengo, P. Benoit, and Xavier Pons

Subjects
Large Hadron Collider, Toroid, Materials science, Nuclear engineering, ATLAS experiment, Superconducting magnet, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Nuclear magnetic resonance, Electromagnetic coil, Physics::Plasma Physics, Magnet, Water cooling, Electrical and Electronic Engineering, Detectors and Experimental Techniques, Cooling down
Abstract

The system of superconducting toroids in the ATLAS experiment at CERN consists of three magnets. The Barrel Toroid was assembled and successfully tested in 2006. Next, two End-Cap Toroids have been tested on surface at 77 K and installed in the cavern, 100-m underground. The End Cap Toroids are based on Al stabilized Nb-Ti/Cu Rutherford cables, arranged in double pancake coils and conduction cooled at 4.6 K. The nominal current is 20.5 kA at 4.1 T peak field in the windings and the stored energy is 250 MJ per toroid. Prior to final testing of the entire ATLAS Toroidal system, each End Cap Toroid passed a commissioning test up to 21 kA to guarantee a reliable performance in the final assembly. In this paper the test results are described. It includes the stages of test preparation, isolation vacuum pumping and leak testing, cooling down, step-by-step charging to full current, training quenches and quench recovery. By fast discharges the quench detection and protection system was checked to demonstrate a safe energy distribution within the magnet after a quench or a triggered fast dump.

Published
2009

5. ALEPH: a Detector for Electron-Positron Annihilations at LEP

Author

D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, L.I.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, Y. Jiang, J. Lin, R. Liu, W. Lu, T. Ruan, T. Wang, X. Wang, D. Wu, W. Wu, Y. Xie, D. Xu, R. Xu, Y. Xu, W. Yan, M. Ye, J. Zhang, H. Zhao, W. Zhao, H. Albrecht, A. Ball, F. Bird, E. Blucher, T. Charity, H. Drevermann, F. Dydak, M. Ferro-Luzzi, Ll. Garrido, C. Grab, R. Grub, R. Hagelberg, S. Haywood, B. Ivesdal, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, P. Lazeyras, I. Lehraus, B. Lofstedt, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J.M. Maugain, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, R. Pintus, L. Pregernig, M. Price, F. Ranjard, J. Richstein, W. Richter, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St. Denis, P. Schilly, D. Schllater, G. Stefanini, M. Takashima, M. Talby, J.C. Tarle, H. Taureg, W. Tejessy, H. Verweij, H. Wachsmuth, H. Wahl, S. Wheeler, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, M. Brossard, R. Chadelas, F. Daudon, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, M. Bercher, U. Berthon, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, A. Busata, M.A. Ciocci, Ph. Delcroz, G. Fouque, R. Guirlet, C. Lemoine, P. Matricon, M. Maubras, R. Morano, P. Miné, J.Y. Parey, P. Poilleux, A. Rougé, C. Roy, M. Rumpf, H. Videau, I. Videau, C. Violet, D. Zwierski, D.J. Candlin, A.J. Main, A. Conti, G. Parrini, E. Scarlini, W. Burley, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Corradi, G. De Ninno, B. D'ettorre-Piazzoli, B. Dulach, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, M. Pallotta, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, J. Wells, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, W. Heyde, E.E. Kluge, J. Krause, Y. Maumary, M. Panter, A. Putzer, B. Rensch, K. Schmitt, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, P. Heinson, M. MacDermott, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, A.P. White, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, D. Pollmann, B. Renk, S. Roehn, M. Schmelling, K. Schmitz, F. Steeg, J-P. Albanese, J-J. Aubert, G. Barrand, R. Bazzoli, C. Benchouk, A. Bonissent, A. Ealet-Grousset, F. Etienne, Y. Gally, E. Kajfasz, R. Nacasch, P. Payre, B. Pietrzyk, J. Raguet, Z. Qian, H. Becker, W. Blum, T. Boulos, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. Aioun, J.N. Albert, Ch. Arnault, G. De Bouard, J. Boucrot, O. Callot, R. Chase, A. Cordier, M. Davier, M. Dialinas, A. Ducorps, D. Fournier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, P. Jean, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.M. Lutz, P. Marotte, J.J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, A. Bechini, F. Bosi, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foa, E. Focardi, F. Forti, S. Galeotti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, D. Passuello, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, N.M. Stewart, J.A. Strong, R.M. Thomas, T. Wildish, E.H. Bellamy, J. Bizzel, D.R. Botterill, R.W. Clifft, I.F. Corbett, T.R. Edgecock, M. Edwards, J.S.M. Fisher, J. Harvey, D.L. Hill, E. Holtom, T.J. Jones, S. Madani Bozorg, G. McPherson, D.R. Moore, M. Morrissey, A. Nichols, P.R. Norton, D.P. Salmon, G.J. Tappern, J.C. Thompson, A. Tucker, R. Bernard, B. Bloch-Devaux, H. Desportes, J. Heitzmann, M. Jacquemet, A. Joudon, E. Locci, J.C. Lottin, S. Loucatos, P. Micolon, J. Pascual, B. Pignard, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, R. Turlay, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S.L. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, G. Gillessen, C. Grupen, H. Meinhard, E. Neugebauer, M. Olpp, W.U. Otto, M. Roschangar, U. Schäfer, R. Seibert, H. Seywerd, K. Stupperich, L. Wurmbach, B. Gobbo, F. Liello, A. Mansutti, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, A. Caldwell, D. Cinabro, M. Convery, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, J. Izen, R.C. Jared, R.P. Johnson, B.W. LeClaire, T.C. Meyer, D. Muller, Y.B. Pan, T. Parker, J.R. Pater, S. Ritz, Y. Saadi, V. Sharma, D. Strom, J.A. Wear, F.V. Weber, E. Wicklund, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chen, Y, Hu, H, Huang, D, Jiang, Y, Lin, J, Liu, R, Lu, W, Ruan, T, Wang, T, Wang, X, Wu, D, Wu, W, Xie, Y, Xu, D, Xu, R, Xu, Y, Yan, W, Ye, M, Zhang, J, Zhao, H, Zhao, W, Albrecht, H, Ball, A, Bird, F, Blucher, E, Charity, T, Drevermann, H, Dydak, F, Ferroluzzi, M, Garrido, L, Grab, C, Grub, R, Hagelberg, R, Haywood, S, Ivesdal, B, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lazeyras, P, Lehraus, I, Lofstedt, B, Lohse, T, Luke, D, Marchioro, A, Mato, P, Maugain, Jm, May, J, Mertens, V, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Pintus, R, Pregernig, L, Price, M, Ranjard, F, Richstein, J, Richter, W, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schilly, P, Schlatter, D, Stefanini, G, Takashima, M, Talby, M, Tarle, Jc, Taureg, H, Tejessy, W, Verweij, H, Wachsmuth, H, Wahl, H, Wheeler, S, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Brossard, M, Chadelas, R, Daudon, F, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhiere, F, Bertelsen, H, Hansen, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Lindahl, A, Madsen, B, Mollerud, R, Nilsson, B, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Bercher, M, Berthon, U, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Busata, A, Ciocci, Ma, Delcroz, P, Fouque, G, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Mine, P, Parey, Jy, Poilleux, P, Rouge, A, Roy, C, Rumpf, M, Videau, H, Videau, I, Violet, C, Zwierski, D, Candlin, Dj, Main, Aj, Conti, A, Parrini, G, Scarlini, E, Burley, W, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Corradi, G, Deninno, G, Dettorrepiazzoli, B, Dulach, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Pallotta, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, Aj, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Martin, Dj, Oneill, R, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Wells, J, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Heyde, W, Kluge, Ee, Krause, J, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Schmitt, K, Stahl, A, Tittel, K, Wunsch, M, Barber, Gj, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Gentry, Dn, Heinson, Ap, Macdermott, M, Miller, Dg, Price, Dr, Sedgbeer, Jk, Taylor, G, White, Ap, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Pollmann, D, Renk, B, Roehn, S, Schmelling, M, Schmitz, K, Steeg, F, Albanese, Jp, Aubert, Jj, Barrand, G, Bazzoli, R, Benchouk, C, Bonissent, A, Ealetgrousset, A, Etienne, F, Gally, Y, Kajfasz, E, Nacasch, R, Payre, P, Pietrzyk, B, Raguet, J, Qian, Z, Becker, H, Blum, W, Boulos, T, Cattaneo, P, Comin, M, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Aioun, G, Albert, Jn, Arnault, C, Debouard, G, Boucrot, J, Callot, O, Chase, R, Cordier, A, Davier, M, Dialinas, M, Ducorps, A, Fournier, D, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Jean, P, Journe, V, Kim, Dw, Lefrancois, J, Lloydowen, D, Lutz, Am, Marotte, P, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bechini, A, Bosi, F, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Galeotti, S, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Passuello, D, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Bj, Green, Mg, Mckemey, Ak, March, Pv, Medcalf, T, Saich, Mr, Stewart, Nm, Strong, Ja, Thomas, Rm, Wildish, T, Bellamy, Eh, Bizzell, J, Botterill, Dr, Clifft, Rw, Corbett, If, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Hill, Dl, Holtom, E, Jones, Tj, Bozorg, Sm, Mcpherson, G, Moore, Dr, Morrissey, M, Nichols, A, Norton, Pr, Salmon, Dp, Tappern, Gj, Thompson, Jc, Tucker, A, Bernard, R, Blochdevaux, B, Desportes, H, Heitzmann, J, Jacquemet, M, Joudon, A, Locci, E, Lottin, Jc, Loucatos, S, Micolon, P, Pascual, J, Pignard, B, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Turlay, R, Ashman, Jg, Booth, Cn, Buttar, C, Carney, R, Cartwright, Sl, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, Lf, Brandt, S, Burkhardt, H, Gillessen, G, Grupen, C, Meinhard, H, Neugebauer, E, Olpp, M, Otto, Wu, Roschangar, M, Schafer, U, Seibert, R, Seywerd, H, Stupperich, K, Wurmbach, L, Gobbo, B, Liello, F, Mansutti, A, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Caldwell, A, Cinabro, D, Convery, M, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Izen, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Meyer, Tc, Muller, D, Pan, Yb, Parker, T, Pater, Jr, Ritz, S, Saadi, Y, Sharma, V, Strom, D, Wear, Ja, Weber, Fv, Wicklund, E, Wu, Sl, Xue, St, Zobernig, G., Milotti, Edoardo, and Aleph, Collaboration

Subjects
Physics, Flexibility (engineering), Nuclear and High Energy Physics, Aleph, high-energy physics, Process modeling, Process (engineering), business.industry, Software development, LEP, Automation, particle detectors, Data acquisition, Detectors and Experimental Techniques, Software engineering, business, Enforcement, Instrumentation, particle detector
Abstract

Process-centred Software Engineering Environments (PSEE) are the most recent generation of environments supporting software development activities. Most of PSEE are based on mechanisms promoting enforcement and automation of process activities. In this kind of mechanisms the process models are prescribed in a detailed and complete way. But the experience shows that supporting processes is more concerned with the flexibility of guidance offered during the process performance than with enforcement of a collection of predefined process models. In this paper, we present a solution to support strategic processes in a PSEE by providing a flexible guidance during process enactment.

Published
1990

6. First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment.

Author

Aalbers J, Akerib DS, Akerlof CW, Al Musalhi AK, Alder F, Alqahtani A, Alsum SK, Amarasinghe CS, Ames A, Anderson TJ, Angelides N, Araújo HM, Armstrong JE, Arthurs M, Azadi S, Bailey AJ, Baker A, Balajthy J, Balashov S, Bang J, Bargemann JW, Barry MJ, Barthel J, Bauer D, Baxter A, Beattie K, Belle J, Beltrame P, Bensinger J, Benson T, Bernard EP, Bhatti A, Biekert A, Biesiadzinski TP, Birch HJ, Birrittella B, Blockinger GM, Boast KE, Boxer B, Bramante R, Brew CAJ, Brás P, Buckley JH, Bugaev VV, Burdin S, Busenitz JK, Buuck M, Cabrita R, Carels C, Carlsmith DL, Carlson B, Carmona-Benitez MC, Cascella M, Chan C, Chawla A, Chen H, Cherwinka JJ, Chott NI, Cole A, Coleman J, Converse MV, Cottle A, Cox G, Craddock WW, Creaner O, Curran D, Currie A, Cutter JE, Dahl CE, David A, Davis J, Davison TJR, Delgaudio J, Dey S, de Viveiros L, Dobi A, Dobson JEY, Druszkiewicz E, Dushkin A, Edberg TK, Edwards WR, Elnimr MM, Emmet WT, Eriksen SR, Faham CH, Fan A, Fayer S, Fearon NM, Fiorucci S, Flaecher H, Ford P, Francis VB, Fraser ED, Fruth T, Gaitskell RJ, Gantos NJ, Garcia D, Geffre A, Gehman VM, Genovesi J, Ghag C, Gibbons R, Gibson E, Gilchriese MGD, Gokhale S, Gomber B, Green J, Greenall A, Greenwood S, van der Grinten MGD, Gwilliam CB, Hall CR, Hans S, Hanzel K, Harrison A, Hartigan-O'Connor E, Haselschwardt SJ, Hernandez MA, Hertel SA, Heuermann G, Hjemfelt C, Hoff MD, Holtom E, Hor JY, Horn M, Huang DQ, Hunt D, Ignarra CM, Jacobsen RG, Jahangir O, James RS, Jeffery SN, Ji W, Johnson J, Kaboth AC, Kamaha AC, Kamdin K, Kasey V, Kazkaz K, Keefner J, Khaitan D, Khaleeq M, Khazov A, Khurana I, Kim YD, Kocher CD, Kodroff D, Korley L, Korolkova EV, Kras J, Kraus H, Kravitz S, Krebs HJ, Kreczko L, Krikler B, Kudryavtsev VA, Kyre S, Landerud B, Leason EA, Lee C, Lee J, Leonard DS, Leonard R, Lesko KT, Levy C, Li J, Liao FT, Liao J, Lin J, Lindote A, Linehan R, Lippincott WH, Liu R, Liu X, Liu Y, Loniewski C, Lopes MI, Lopez Asamar E, López Paredes B, Lorenzon W, Lucero D, Luitz S, Lyle JM, Majewski PA, Makkinje J, Malling DC, Manalaysay A, Manenti L, Mannino RL, Marangou N, Marzioni MF, Maupin C, McCarthy ME, McConnell CT, McKinsey DN, McLaughlin J, Meng Y, Migneault J, Miller EH, Mizrachi E, Mock JA, Monte A, Monzani ME, Morad JA, Morales Mendoza JD, Morrison E, Mount BJ, Murdy M, Murphy ASJ, Naim D, Naylor A, Nedlik C, Nehrkorn C, Neves F, Nguyen A, Nikoleyczik JA, Nilima A, O'Dell J, O'Neill FG, O'Sullivan K, Olcina I, Olevitch MA, Oliver-Mallory KC, Orpwood J, Pagenkopf D, Pal S, Palladino KJ, Palmer J, Pangilinan M, Parveen N, Patton SJ, Pease EK, Penning B, Pereira C, Pereira G, Perry E, Pershing T, Peterson IB, Piepke A, Podczerwinski J, Porzio D, Powell S, Preece RM, Pushkin K, Qie Y, Ratcliff BN, Reichenbacher J, Reichhart L, Rhyne CA, Richards A, Riffard Q, Rischbieter GRC, Rodrigues JP, Rodriguez A, Rose HJ, Rosero R, Rossiter P, Rushton T, Rutherford G, Rynders D, Saba JS, Santone D, Sazzad ABMR, Schnee RW, Scovell PR, Seymour D, Shaw S, Shutt T, Silk JJ, Silva C, Sinev G, Skarpaas K, Skulski W, Smith R, Solmaz M, Solovov VN, Sorensen P, Soria J, Stancu I, Stark MR, Stevens A, Stiegler TM, Stifter K, Studley R, Suerfu B, Sumner TJ, Sutcliffe P, Swanson N, Szydagis M, Tan M, Taylor DJ, Taylor R, Taylor WC, Temples DJ, Tennyson BP, Terman PA, Thomas KJ, Tiedt DR, Timalsina M, To WH, Tomás A, Tong Z, Tovey DR, Tranter J, Trask M, Tripathi M, Tronstad DR, Tull CE, Turner W, Tvrznikova L, Utku U, Va'vra J, Vacheret A, Vaitkus AC, Verbus JR, Voirin E, Waldron WL, Wang A, Wang B, Wang JJ, Wang W, Wang Y, Watson JR, Webb RC, White A, White DT, White JT, White RG, Whitis TJ, Williams M, Wisniewski WJ, Witherell MS, Wolfs FLH, Wolfs JD, Woodford S, Woodward D, Worm SD, Wright CJ, Xia Q, Xiang X, Xiao Q, Xu J, Yeh M, Yin J, Young I, Zarzhitsky P, Zuckerman A, and Zweig EA

Abstract

The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9  GeV/c^{2}. The most stringent limit is set for spin-independent scattering at 36  GeV/c^{2}, rejecting cross sections above 9.2×10^{-48}  cm at the 90% confidence level.

Published
2023
Full Text
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7. Microparticle formation after co-culture of human whole blood and umbilical artery in a novel in vitro model of flow.

Author

Holtom E, Usherwood JR, Macey MG, and Lawson C

Subjects
Adult, Coculture Techniques, Endothelial Cells metabolism, Endothelium cytology, Erythrocytes cytology, Female, Flow Cytometry, Humans, Inflammation metabolism, Inflammation pathology, Leukocytes cytology, Reactive Oxygen Species metabolism, Cell-Derived Microparticles metabolism, Endothelium metabolism, Erythrocytes metabolism, Leukocytes metabolism, Umbilical Arteries metabolism
Abstract

Cardiovascular disease (CVD) is now the largest killer in western society, and the importance of interactions between vascular endothelium and circulating blood components in disease pathogenesis is well established. Microparticles are a heterogeneous population of <1 μm blood borne particles that arise from blebbing or shedding of cell membranes. The microparticle population includes several classes of apoptotic bodies; however, increased numbers of procoagulant microparticles have been described in plasma from people with CVD. We have previously demonstrated that interactions of monocytes and platelets with isolated inflamed endothelial cells lead to production of pro-coagulant tissue factor bearing microparticles under laminar flow conditions. Here we have investigated microparticle production after perfusion of human whole blood through intact inflamed human umbilical artery. When blood was perfused through umbilical arteries which had been pre-stimulated with tumour necrosis factor (TNFα) for 18 h under flow conditions, there was significantly increased production of microparticles from both platelet and non-platelet sources, in particular from erythrocytes. To determine whether microparticles generated during interactions with inflamed endothelium could induce a pro-inflammatory response in trans, we isolated microparticles by centrifugation after co-culture and incubated with isolated quiescent endothelial cells followed by measurement of reactive oxygen species formation. Microparticles derived from co-culture with inflamed endothelium induced significantly enhanced levels of reactive oxygen species (ROS). These data suggest that presence of an inflamed endothelium causes release of pro-inflammatory microparticles from circulating blood cells, which could contribute to prolonged endothelial activation and subsequent atherosclerotic changes in blood vessels subjected to inflammatory insult., (Copyright © 2011 International Society for Advancement of Cytometry.)

Published
2012
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