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1. 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, and Genovesi, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, LUX-ZEPLIN Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
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

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

Author

Akerib, DS, Akerlof, CW, Akimov, D Yu, Alquahtani, A, Alsum, SK, Anderson, TJ, Angelides, N, Araújo, HM, Arbuckle, A, Armstrong, JE, Arthurs, M, Auyeung, H, Aviles, S, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Bang, J, Barry, MJ, Bauer, D, Bauer, P, Baxter, A, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Birrittella, B, Boast, KE, Bolozdynya, AI, Boulton, EM, Boxer, B, Bramante, R, Branson, S, Brás, P, Breidenbach, M, Brew, CAJ, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Cabrita, R, Campbell, JS, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Chott, NI, Cole, A, Coleman, J, Colling, D, Conley, RA, Cottle, A, Coughlen, R, Cox, G, Craddock, WW, Curran, D, Currie, A, Cutter, JE, da Cunha, JP, Dahl, CE, Dardin, S, Dasu, S, Davis, J, Davison, TJR, de Viveiros, L, Decheine, N, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Edwards, BN, Edwards, J, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fiorucci, S, Flaecher, H, Florang, IM Fogarty, Ford, P, Francis, VB, Fraser, ED, Froborg, F, and Fruth, T

Subjects
Particle and High Energy Physics, Astronomical Sciences, Atomic, Molecular and Optical Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

The reference to the article is Manuscript ID EPJC-20-06-042 from the internal review perspective. The reference to the article as published, is: (Table presented.).

Published
2022

3. The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

Author

Akerib, DS, Akerlof, CW, Akimov, D Yu, Alquahtani, A, Alsum, SK, Anderson, TJ, Angelides, N, Araújo, HM, Arbuckle, A, Armstrong, JE, Arthurs, M, Auyeung, H, Aviles, S, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Bang, J, Barry, MJ, Bauer, D, Bauer, P, Baxter, A, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Birrittella, B, Boast, KE, Bolozdynya, AI, Boulton, EM, Boxer, B, Bramante, R, Branson, S, Brás, P, Breidenbach, M, Brew, CAJ, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Cabrita, R, Campbell, JS, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Chott, NI, Cole, A, Coleman, J, Colling, D, Conley, RA, Cottle, A, Coughlen, R, Cox, G, Craddock, WW, Curran, D, Currie, A, Cutter, JE, da Cunha, JP, Dahl, CE, Dardin, S, Dasu, S, Davis, J, Davison, TJR, de Viveiros, L, Decheine, N, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Edwards, BN, Edwards, J, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fiorucci, S, Flaecher, H, Florang, IM Fogarty, Ford, P, Francis, VB, Fraser, ED, Froborg, F, and Fruth, T

Subjects
Nuclear and Plasma Physics, Physical Sciences, physics.ins-det, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

LUX-ZEPLIN (LZ) is a second-generation direct dark matter experiment with spin-independent WIMP-nucleon scattering sensitivity above 1.4×10-48cm2 for a WIMP mass of 40GeV/c2 and a 1000days exposure. LZ achieves this sensitivity through a combination of a large 5.6t 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

4. The LUX-ZEPLIN (LZ) experiment

Author

Akerib, DS, Akerlof, CW, Akimov, DY, Alquahtani, A, Alsum, SK, Anderson, TJ, Angelides, N, Araújo, HM, Arbuckle, A, Armstrong, JE, Arthurs, M, Auyeung, H, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Bang, J, Barry, MJ, Barthel, J, Bauer, D, Bauer, P, Baxter, A, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birrittella, B, Boast, KE, Bolozdynya, AI, Boulton, EM, Boxer, B, Bramante, R, Branson, S, Brás, P, Breidenbach, M, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Campbell, JS, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Chott, NI, Cole, A, Coleman, J, Colling, D, Conley, RA, Cottle, A, Coughlen, R, Craddock, WW, Curran, D, Currie, A, Cutter, JE, da Cunha, JP, Dahl, CE, Dardin, S, Dasu, S, Davis, J, Davison, TJR, de Viveiros, L, Decheine, N, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Edwards, BN, Edwards, J, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fiorucci, S, Flaecher, H, Fogarty Florang, IM, Ford, P, Francis, VB, Froborg, F, Fruth, T, Gaitskell, RJ, Gantos, NJ, Garcia, D, Geffre, A, and Gehman, VM

Subjects
Dark matter detector, Liquid xenon, Time projection chamber, Underground, physics.ins-det, astro-ph.IM, hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences
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.

Published
2020

5. Identification of radiopure titanium for the LZ dark matter experiment and future rare event searches

Author

Akerib, DS, Akerlof, CW, Akimov, DY, Alsum, SK, Araújo, HM, Arnquist, IJ, Arthurs, M, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Barry, MJ, Belle, J, Beltrame, P, Benson, T, Bernard, EP, Bernstein, A, Biesiadzinski, TP, Boast, KE, Bolozdynya, A, Boxer, B, Bramante, R, Brás, P, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Cottle, A, Coughlen, R, Craddock, WW, Currie, A, Dahl, CE, Davison, TJR, Dobi, A, Dobson, JEY, Druszkiewicz, E, Edberg, TK, Edwards, WR, Emmet, WT, Faham, CH, Fiorucci, S, Fruth, T, Gaitskell, RJ, Gantos, NJ, Gehman, VM, Gerhard, RM, Ghag, C, Gilchriese, MGD, Gomber, B, Hall, CR, Hans, S, Hanzel, K, Haselschwardt, SJ, Hertel, SA, Hillbrand, S, Hjemfelt, C, Hoff, MD, Holbrook, B, Holtom, E, Hoppe, EW, Hor, JYK, Horn, M, Huang, DQ, Hurteau, TW, Ignarra, CM, Jacobsen, RG, Ji, W, Kaboth, A, Kamdin, K, Kazkaz, K, Khaitan, D, Khazov, A, Khromov, AV, Konovalov, AM, Korolkova, EV, Koyuncu, M, Kraus, H, Krebs, HJ, Kudryavtsev, VA, Kumpan, AV, Kyre, S, Lee, C, Lee, HS, Lee, J, Leonard, DS, Leonard, R, Lesko, KT, Levy, C, Liao, FT, Lin, J, and Lindote, A

Subjects
physics.ins-det, hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat. The large mass and proximity of the cryostat to the active detector volume demand the use of material with extremely low intrinsic radioactivity. We report on the radioassay campaign conducted to identify suitable metals, the determination of factors limiting radiopure production, and the selection of titanium for construction of the LZ cryostat and other detector components. This titanium has been measured with activities of 238Ue < 1.6 mBq/kg, 238Ul < 0.09 mBq/kg, 232The=0.28±0.03 mBq/kg, 232Thl=0.25±0.02 mBq/kg, 40K < 0.54 mBq/kg, and 60Co < 0.02 mBq/kg (68% CL). Such low intrinsic activities, which are some of the lowest ever reported for titanium, enable its use for future dark matter and other rare event searches. Monte Carlo simulations have been performed to assess the expected background contribution from the LZ cryostat with this radioactivity. In 1,000 days of WIMP search exposure of a 5.6-tonne fiducial mass, the cryostat will contribute only a mean background of 0.160 ± 0.001(stat) ± 0.030(sys) counts.

Published
2017

6. Erratum to: The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs (The European Physical Journal C, (2020), 80, 11, (1044), 10.1140/epjc/s10052-020-8420-x)

Author

Akerib, DS, Akerib, DS, Akerlof, CW, Akimov, DY, Alquahtani, A, Alsum, SK, Anderson, TJ, Angelides, N, Araújo, HM, Arbuckle, A, Armstrong, JE, Arthurs, M, Auyeung, H, Aviles, S, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Bang, J, Barry, MJ, Bauer, D, Bauer, P, Baxter, A, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Birrittella, B, Boast, KE, Bolozdynya, AI, Boulton, EM, Boxer, B, Bramante, R, Branson, S, Brás, P, Breidenbach, M, Brew, CAJ, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Cabrita, R, Campbell, JS, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Chott, NI, Cole, A, Coleman, J, Colling, D, Conley, RA, Cottle, A, Coughlen, R, Cox, G, Craddock, WW, Curran, D, Currie, A, Cutter, JE, da Cunha, JP, Dahl, CE, Dardin, S, Dasu, S, Davis, J, Davison, TJR, de Viveiros, L, Decheine, N, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Edwards, BN, Edwards, J, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fiorucci, S, Flaecher, H, Florang, IMF, Ford, P, Francis, VB, Fraser, ED, Froborg, F, Fruth, T, Akerib, DS, Akerib, DS, Akerlof, CW, Akimov, DY, Alquahtani, A, Alsum, SK, Anderson, TJ, Angelides, N, Araújo, HM, Arbuckle, A, Armstrong, JE, Arthurs, M, Auyeung, H, Aviles, S, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Bang, J, Barry, MJ, Bauer, D, Bauer, P, Baxter, A, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Birrittella, B, Boast, KE, Bolozdynya, AI, Boulton, EM, Boxer, B, Bramante, R, Branson, S, Brás, P, Breidenbach, M, Brew, CAJ, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Cabrita, R, Campbell, JS, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Chott, NI, Cole, A, Coleman, J, Colling, D, Conley, RA, Cottle, A, Coughlen, R, Cox, G, Craddock, WW, Curran, D, Currie, A, Cutter, JE, da Cunha, JP, Dahl, CE, Dardin, S, Dasu, S, Davis, J, Davison, TJR, de Viveiros, L, Decheine, N, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Edwards, BN, Edwards, J, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fiorucci, S, Flaecher, H, Florang, IMF, Ford, P, Francis, VB, Fraser, ED, Froborg, F, and Fruth, T

Abstract

The reference to the article is Manuscript ID EPJC-20-06-042 from the internal review perspective. The reference to the article as published, is: (Table presented.).

Published
2022

7. LUX-ZEPLIN (LZ) Technical Design Report

Author

Mount, BJ, Hans, S, Rosero, R, Yeh, M, Chan, C, Gaitskell, RJ, Huang, DQ, Makkinje, J, Malling, DC, Pangilinan, M, Rhyne, CA, Taylor, WC, Verbus, JR, Kim, YD, Lee, HS, Lee, J, Leonard, DS, Li, J, Belle, J, Cottle, A, Lippincott, WH, Markley, DJ, Martin, TJ, Sarychev, M, Tope, TE, Utes, M, Wang, R, Young, I, Araújo, HM, Bailey, AJ, Bauer, D, Colling, D, Currie, A, Fayer, S, Froborg, F, Greenwood, S, Jones, WG, Kasey, V, Khaleeq, M, Olcina, I, Paredes, BL, Richards, A, Sumner, TJ, Tomás, A, Vacheret, A, Brás, P, Lindote, A, Lopes, MI, Neves, F, Rodrigues, JP, Silva, C, Solovov, VN, Barry, MJ, Cole, A, Dobi, A, Edwards, WR, Faham, CH, Fiorucci, S, Gantos, NJ, Gehman, VM, Gilchriese, MGD, Hanzel, K, Hoff, MD, Kamdin, K, Lesko, KT, McConnell, CT, O'Sullivan, K, Oliver-Mallory, KC, Patton, SJ, Saba, JS, Sorensen, P, Thomas, KJ, Tull, CE, Waldron, WL, Witherell, MS, Bernstein, A, Kazkaz, K, Xu, J, Akimov, DY, Bolozdynya, AI, Khromov, AV, Konovalov, AM, Kumpan, AV, Sosnovtsev, VV, Dahl, CE, Temples, D, Carmona-Benitez, MC, Viveiros, LD, Akerib, DS, Auyeung, H, Biesiadzinski, TP, Breidenbach, M, Bramante, R, Conley, R, Craddock, WW, Fan, A, Hau, A, Ignarra, CM, Ji, W, Krebs, HJ, Linehan, R, Lee, C, Luitz, S, Mizrachi, E, Monzani, ME, O'Neill, FG, Pierson, S, Racine, M, Ratcliff, BN, Shutt, GW, Shutt, TA, Skarpaas, K, Stifter, K, To, WH, Va'vra, J, Whitis, TJ, Wisniewski, WJ, Bai, X, Bunker, R, Coughlen, R, Hjemfelt, C, Leonard, R, Miller, EH, Morrison, E, Reichenbacher, J, Schnee, RW, Stark, MR, Sundarnath, K, Tiedt, DR, Timalsina, M, Bauer, P, Carlson, B, Horn, M, Johnson, M, Keefner, J, Maupin, C, Taylor, DJ, Balashov, S, Ford, P, Francis, V, Holtom, E, Khazov, A, Kaboth, A, Majewski, P, Nikkel, JA, O'Dell, J, Preece, RM, Grinten, MGDVD, Worm, SD, Mannino, RL, Stiegler, TM, Terman, PA, Webb, RC, Levy, C, Mock, J, Szydagis, M, Busenitz, JK, Elnimr, M, Hor, JY-K, Meng, Y, Piepke, A, Stancu, I, Kreczko, L, Krikler, B, Penning, B, Bernard, EP, Jacobsen, RG, McKinsey, DN, Watson, R, Cutter, JE, El-Jurf, S, Gerhard, RM, Hemer, D, Hillbrand, S, Holbrook, B, Lenardo, BG, Manalaysay, AG, Morad, JA, Stephenson, S, Thomson, JA, Tripathi, M, Uvarov, S, Haselschwardt, SJ, Kyre, S, Nehrkorn, C, Nelson, HN, Solmaz, M, White, DT, Cascella, M, Dobson, JEY, Ghag, C, Liu, X, Manenti, L, Reichhart, L, Shaw, S, Utku, U, Beltrame, P, Davison, TJR, Marzioni, MF, Murphy, ASJ, Nilima, A, Boxer, B, Burdin, S, Greenall, A, Powell, S, Rose, HJ, Sutcliffe, P, Balajthy, J, Edberg, TK, Hall, CR, Silk, JS, Hertel, S, Akerlof, CW, Arthurs, M, Lorenzon, W, Pushkin, K, Schubnell, M, Boast, KE, Carels, C, Fruth, T, Kraus, H, Liao, F-T, Lin, J, Scovell, PR, Druszkiewicz, E, Khaitan, D, Koyuncu, M, Skulski, W, Wolfs, FLH, Yin, J, Korolkova, EV, Kudryavtsev, VA, Rossiter, P, Woodward, D, Chiller, AA, Chiller, C, Mei, D-M, Wang, L, Wei, W-Z, While, M, Zhang, C, Alsum, SK, Benson, T, Carlsmith, DL, Cherwinka, JJ, Dasu, S, Gregerson, G, Gomber, B, Pagac, A, Palladino, KJ, Vuosalo, CO, Xiao, Q, Buckley, JH, Bugaev, VV, Olevitch, MA, Boulton, EM, Emmet, WT, Hurteau, TW, Larsen, NA, Pease, EK, Tennyson, BP, and Tvrznikova, L

Subjects
High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), High Energy Physics - Experiment
Abstract

In this Technical Design Report (TDR) we describe the LZ detector to be built at the Sanford Underground Research Facility (SURF). The LZ dark matter experiment is designed to achieve sensitivity to a WIMP-nucleon spin-independent cross section of three times ten to the negative forty-eighth square centimeters., 392 pages. Submitted to the Department of Energy as part of the documentation for the Critical Decision Numbers Two and Three (CD-2 and CD-3) management processes. Report also available by chapter at this URL

Published
2017

8. LUX-ZEPLIN (LZ) Conceptual Design Report

Author

Collaboration, TLZ, Akerib, DS, Akerlof, CW, Akimov, DY, Alsum, SK, Araújo, HM, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Barry, MJ, Bauer, P, Beltrame, P, Bernard, EP, Bernstein, A, Biesiadzinski, TP, Boast, KE, Bolozdynya, AI, Boulton, EM, Bramante, R, Buckley, JH, Bugaev, VV, Bunker, R, Burdin, S, Busenitz, JK, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Craddock, WW, Currie, A, Cutter, JE, Cunha, JPD, Dahl, CE, Dasu, S, Davison, TJR, Viveiros, LD, Dobi, A, Dobson, JEY, Druszkiewicz, E, Edberg, TK, Edwards, BN, Edwards, WR, Elnimr, MM, Emmet, WT, Faham, CH, Fiorucci, S, Ford, P, Francis, VB, Fu, C, Gaitskell, RJ, Gantos, NJ, Gehman, VM, Gerhard, RM, Ghag, C, Gilchriese, MGD, Gomber, B, Hall, CR, Harris, A, Haselschwardt, SJ, Hertel, SA, Hoff, MD, Holbrook, B, Holtom, E, Huang, DQ, Hurteau, TW, Ignarra, CM, Jacobsen, RG, Ji, W, Ji, X, Johnson, M, Ju, Y, Kamdin, K, Kazkaz, K, Khaitan, D, Khazov, A, Khromov, AV, Konovalov, AM, Korolkova, EV, Kraus, H, Krebs, HJ, Kudryavtsev, VA, Kumpan, AV, Kyre, S, Larsen, NA, Lee, C, Lenardo, BG, Lesko, KT, Liao, F-T, Lin, J, Lindote, A, Lippincott, WH, Liu, J, Liu, X, Lopes, MI, Lorenzon, W, Luitz, S, Majewski, P, Malling, DC, Manalaysay, AG, Manenti, L, Mannino, RL, Markley, DJ, Martin, TJ, Marzioni, MF, McKinsey, DN, Mei, D-M, Meng, Y, Miller, EH, Mock, J, Monzani, ME, Morad, JA, Murphy, ASJ, Nelson, HN, Neves, F, Nikkel, JA, O'Neill, FG, O'Dell, J, O'Sullivan, K, Olevitch, MA, Oliver-Mallory, KC, Palladino, KJ, Pangilinan, M, Patton, SJ, Pease, EK, Piepke, A, Powell, S, Preece, RM, Pushkin, K, Ratcliff, BN, Reichenbacher, J, Reichhart, L, Rhyne, C, Rodrigues, JP, Rose, HJ, Rosero, R, Saba, JS, Sarychev, M, Schnee, RW, Schubnell, MSG, Scovell, PR, Shaw, S, Shutt, TA, Silva, C, Skarpaas, K, Skulski, W, Solovov, VN, Sorensen, P, Sosnovtsev, VV, Stancu, I, Stark, MR, Stephenson, S, Stiegler, TM, Sumner, TJ, Sundarnath, K, Szydagis, M, Taylor, DJ, Taylor, W, Tennyson, BP, Terman, PA, Thomas, KJ, Thomson, JA, Tiedt, DR, To, WH, Tomás, A, Tripathi, M, Tull, CE, Tvrznikova, L, Uvarov, S, Va'vra, J, Grinten, MGDVD, Verbus, JR, Vuosalo, CO, Waldron, WL, Wang, L, Webb, RC, Wei, W-Z, While, M, White, DT, Whitis, TJ, Wisniewski, WJ, Witherell, MS, Wolfs, FLH, Woods, E, Woodward, D, Worm, SD, Yeh, M, Yin, J, Young, SK, and Zhang, C

Abstract

The design and performance of the LUX-ZEPLIN (LZ) detector is described as of March 2015 in this Conceptual Design Report. LZ is a second-generation dark-matter detector with the potential for unprecedented sensitivity to weakly interacting massive particles (WIMPs) of masses from a few GeV/c2 to hundreds of TeV/c2. With total liquid xenon mass of about 10 tonnes, LZ will be the most sensitive experiment for WIMPs in this mass region by the end of the decade. This report describes in detail the design of the LZ technical systems. Expected backgrounds are quantified and the performance of the experiment is presented. The LZ detector will be located at the Sanford Underground Research Facility in South Dakota. The organization of the LZ Project and a summary of the expected cost and current schedule are given.

Published
2015

9. First measurement of the left-right cross section asymmetry in Z boson production by e+e- collisions

Author

ABE K, ABT I, ACTON PD, ADOLPHSEN CE, AGNEW G, ALBER C, ALZOFON DF, ANTILOGUS P, ARROYO C, ASH WW, ASHFORD V, ASTBURY A, ASTON D, AU Y, AXEN DA, BACCHETTA N, BAIRD KG, BAKER W, BALTAY C, BAND HR, BARANKO G, BARDON O, BARRERA F, BATTISTON R, BAZARKO AO, BEAN A, BEER G, BELCINSKI RJ, BELL RA, BENDAVID R, BENVENUTI AC, BERGER R, BERRIDGE SC, BETHKE S, BIASINI M, BIENZ T, BILEI GM, BIRD F, BISELLO D, BLAYLOCK G, BLUMBERG R, BOGART JR, BOLTON T, BOUGEROLLE S, BOWER GR, BOYCE RF, BRAU JE, BREIDENBACH M, BROWDER TE, BUGG WM, BURGESS B, BURKE D, BURNETT TH, BURROWS PN, BUSZA W, BYERS BL, CALCATERRA A, CALDWELL DO, CALLOWAY D, CAMANZI B, CAMILLERI L, CARPINELLI, Massimo, CARR J, CARTWRIGHT S, CASSELL R, CASTALDI R, CASTRO A, CAVALLISFORZA M, CHADWICK GB, CHAMBERLAIN O, CHAMBERS D, CHEN L, CLARKE PEL, CLAUS R, CLENDENIN J, COHN HO, COLLER JA, COOK V, CORDS D, COTTON R, COWAN RF, COYLE PA, COYNE DG, CRADDOCK W, CUTLER H, DOLIVEIRA A, DAMERELL CJS, DASU S, DAVIS R, DESANGRO R, DESIMONE P, DESIMONE S, DEAN T, DECKER FJ, DEJONGH F, DELLORSO R, DISCO A, DOLIN R, DOWNING RW, DU YC, DUBOIS R, DUBOSCQ JE, DUNWOODIE W, DURRETT DD, ECKLUND SD, EIGEN G, EISENSTEIN BI, ELIA R, EMMA PJ, EMMET WT, ENGLISH RL, ERDOS E, ESCALERA J, FAN C, FERO MJ, FERRIE J, FIEGUTH T, FLYNN J, FORBUSH DA, FORTUNE KM, FOX JD, FOX MJ, FREY R, FREYTAG DR, FRIEDMAN JI, FRISCH J, FUJIMOTO J, FURUNO K, GAILLARD M, GALLINARO M, GARWIN E, GILLMAN T, GIOUMOUSIS A, GLADDING G, GONZALEZ S, GURD DP, HALE DL, HALLER GM, HALLEWELL GD, HAMILTON V, HANEY MJ, HANSLKOZANECKA T, HARGIS H, HARRISON J, HART EL, HASEGAWA K, HASEGAWA Y, HEDGES S, HERTZBACH SS, HILDRETH MD, HILOMEN RC, HIMEL TM, HITLIN DG, HODGES TA, HODGSON J, HOEFLICH JJ, HONMA A, HORELICK D, HUBER J, HUFFER ME, HUGHES EW, HWANG H, HYATT E, IWASAKI Y, IZEN JM, JOBE RK, JACQUES P, JAKO C, JOHNSON AS, JOHNSON JR, JOHNSON RA, JONES S, JUNK T, KAISER S, KAJIKAWA R, KALELKAR M, KANG H, KARLINER I, KAWAHARA H, KEELER RK, KELSEY MH, KENDALL HW, KHARAKH D, KIM HY, KIM PC, KING R, KLEIN M, KOFLER RR, KOWITT M, KREJCIK P, KRISHNA NM, KROEGER RS, KULIKOV AV, KUNZ PF, KWON Y, LABS JF, LANGSTAFF RR, LANGSTON M, LARSEN R, LATH A, LAUBER JA, LEITH DWG, LIMBERG T, LINTERN L, LIU X, LORETI M, LU A, LYNCH HL, LYONS T, MA J, MAJID WA, MANCINELLI G, MANLY S, MANSOUR D, MANTOVANI G, MARKIEWICZ TW, MARUYAMA T, MASON GR, MASUDA H, MATHYS L, MAZAHERI G, MAZZUCATO A, MAZZUCATO E, MCCORMICK DJ, MCGOWAN JF, MCHUGH S, MCKEMEY AK, MEADOWS BT, MELLOR DJ, MESSNER R, MINCER AI, MINTY M, MOCKETT PM, MOFFEIT KC, MORRISON RJ, MOURS B, MUELLER G, MULLER D, MUNDY G, NAGAMINE T, NAUENBERG U, NEAL H, NELSON D, NESTEROV V, NORDBY M, NUSSBAUM M, NUTTALL A, OGREN H, OLSEN J, ORAM C, OSBORNE LS, OSSA R, OXOBY G, PAFFRATH L, PALOUNEK A, PANVINI RS, PARK H, PAULUZZI M, PAVEL TJ, PERRIER F, PERUZZI I, PESCARA L, PETERS D, PETERSEN H, PETRADZA M, PHINNEY N, PICCOLO M, PIEMONTESE L, PIERONI E, PITTHAN R, PITTS KT, PLANO RJ, POFFENBERGER PR, PREPOST R, PRESCOTT CY, PRIPSTEIN D, PUNKAR GD, PUTALLAZ G, RAIMONDI P, RANKIN P, RATCLIFF BN, REEVES TW, RENSING PE, RICHMAN JD, RINTA R, ROBERTSON LP, ROCHESTER LS, ROSENSON L, ROSS MC, ROTHBERG JE, ROTHENBERG A, ROWSON PC, RUSSELL JJ, RUST D, RUTZ E, SAEZ P, SANTHA AK, SANTOCCHIA A, SAXTON OH, SCHALK T, SCHENK PR, SCHINDLER RH, SCHNEEKLOTH U, SCHNEIDER M, SCHULTZ D, SCHULTZ GE, SCHUMM BA, SEEMAN JT, SEIDEN A, SERVOLI L, SETTLES M, SHAEVITZ MH, SHANK JT, SHAPIRO G, SHAPIRO SL, SHAW H, SHEPPARD JC, SHERDEN DJ, SHIMOMURA T, SHOUP A, SHYPIT RL, SIEMANN RH, SIMOPOULOS C, SKARPAAS K, SMITH SR, SNYDER A, SNYDER JA, SOBIE R, SOKOLOFF MD, SPENCE WL, SPENCER EN, STLORANT S, STAMER P, STEINER H, STEINER R, STEPHENSON RJ, STEWART G, STILES P, STOCKDALE IE, STRAUSS MG, SU D, SUEKANE F, SUGIYAMA A, SUZUKI S, SWARTZ M, SZUMILO A, TAHAR MZ, TAKAHASHI T, TANG H, TAPPERN GJ, TARNOPOLSKY G, TAYLOR FE, TECCHIO M, THALER JJ, TOEVS F, TOGE N, TURCOTTE M, TURK JD, TURNER JL, USHER T, VAVRA J, VANNINI C, VELLA E, VENUTI JP, VERDIER R, VERDINI PG, WADSWORTH BF, WAITE AP, WALKER NJ, WALZ D, WARNER D, WATT R, WATTS SJ, WEBER T, WEIDEMANN AW, WHITAKER JS, WHITE SL, WICKENS FJ, WICKERT SA, WILLIAMS DA, WILLIAMS DC, WILLIAMS RW, WILLIAMS SH, WILSON RJ, WISNIEWSKI WJ, WITHERELL MS, WOODLY MD, WOODS M, WORD GB, WYSS J, YAMAMOTO RK, YAMARTINO JM, YEE C, YEREMIAN AD, YELLIN SJ, YIM A, YOUNG CC, YOUNG KK, YUTA H, ZAPALAC G, ZDARKO RW, ZEITLIN C, ZHOU J, ZIEMANN V, ZOLOTOREV M, ZUCCHELLI P., Abe, K, Abt, I, Acton, P, Adolphsen, C, Agnew, G, Alber, C, Alzofon, D, Antilogus, P, Arroyo, C, Ash, W, Ashford, V, Astbury, A, Aston, D, Au, Y, Axen, D, Bacchetta, N, Baird, K, Baker, W, Baltay, C, Band, H, Baranko, G, Bardon, O, Barrera, F, Battiston, R, Bazarko, A, Bean, A, Beer, G, Belcinski, R, Bell, R, Bendavid, R, Benvenuti, A, Berger, R, Berridge, S, Bethke, S, Biasini, M, Bienz, T, Bilei, G, Bird, F, Bisello, D, Blaylock, G, Blumberg, R, Bogart, J, Bolton, T, Bougerolle, S, Bower, G, Boyce, R, Brau, J, Breidenbach, M, Browder, T, Bugg, W, Burgess, B, Burke, D, Burnett, T, Burrows, P, Busza, W, Byers, B, Calcaterra, A, Caldwell, D, Calloway, D, Camanzi, B, Camilleri, L, Carpinelli, M, Carr, J, Cartwright, S, Cassell, R, Castaldi, R, Castro, A, Cavallisforza, M, Chadwick, G, Chamberlain, O, Chambers, D, Chen, L, Clarke, P, Claus, R, Clendenin, J, Cohn, H, Coller, J, Cook, V, Cords, D, Cotton, R, Cowan, R, Coyle, P, Coyne, D, Craddock, W, Cutler, H, Doliveira, A, Damerell, C, Dasu, S, Davis, R, Desangro, R, Desimone, P, Desimone, S, Dean, T, Decker, F, Dejongh, F, Dellorso, R, Disco, A, Dolin, R, Downing, R, Du, Y, Dubois, R, Duboscq, J, Dunwoodie, W, Durrett, D, Ecklund, S, Eigen, G, Eisenstein, B, Elia, R, Emma, P, Emmet, W, English, R, Erdos, E, Escalera, J, Fan, C, Fero, M, Ferrie, J, Fieguth, T, Flynn, J, Forbush, D, Fortune, K, Fox, J, Fox, M, Frey, R, Freytag, D, Friedman, J, Frisch, J, Fujimoto, J, Furuno, K, Gaillard, M, Gallinaro, M, Garwin, E, Gillman, T, Gioumousis, A, Gladding, G, Gonzalez, S, Gurd, D, Hale, D, Haller, G, Hallewell, G, Hamilton, V, Haney, M, Hanslkozanecka, T, Hargis, H, Harrison, J, Hart, E, Hasegawa, K, Hasegawa, Y, Hedges, S, Hertzbach, S, Hildreth, M, Hilomen, R, Himel, T, Hitlin, D, Hodges, T, Hodgson, J, Hoeflich, J, Honma, A, Horelick, D, Huber, J, Huffer, M, Hughes, E, Hwang, H, Hyatt, E, Iwasaki, Y, Izen, J, Jobe, R, Jacques, P, Jako, C, Johnson, A, Johnson, J, Johnson, R, Jones, S, Junk, T, Kaiser, S, Kajikawa, R, Kalelkar, M, Kang, H, Karliner, I, Kawahara, H, Keeler, R, Kelsey, M, Kendall, H, Kharakh, D, Kim, H, Kim, P, King, R, Klein, M, Kofler, R, Kowitt, M, Krejcik, P, Krishna, N, Kroeger, R, Kulikov, A, Kunz, P, Kwon, Y, Labs, J, Langstaff, R, Langston, M, Larsen, R, Lath, A, Lauber, J, Leith, D, Limberg, T, Lintern, L, Liu, X, Loreti, M, Lu, A, Lynch, H, Lyons, T, Ma, J, Majid, W, Mancinelli, G, Manly, S, Mansour, D, Mantovani, G, Markiewicz, T, Maruyama, T, Mason, G, Masuda, H, Mathys, L, Mazaheri, G, Mazzucato, A, Mazzucato, E, Mccormick, D, Mcgowan, J, Mchugh, S, Mckemey, A, Meadows, B, Mellor, D, Messner, R, Mincer, A, Minty, M, Mockett, P, Moffeit, K, Morrison, R, Mours, B, Mueller, G, Muller, D, Mundy, G, Nagamine, T, Nauenberg, U, Neal, H, Nelson, D, Nesterov, V, Nordby, M, Nussbaum, M, Nuttall, A, Ogren, H, Olsen, J, Oram, C, Osborne, L, Ossa, R, Oxoby, G, Paffrath, L, Palounek, A, Panvini, R, Park, H, Pauluzzi, M, Pavel, T, Perrier, F, Peruzzi, I, Pescara, L, Peters, D, Petersen, H, Petradza, M, Phinney, N, Piccolo, M, Piemontese, L, Pieroni, E, Pitthan, R, Pitts, K, Plano, R, Poffenberger, P, Prepost, R, Prescott, C, Pripstein, D, Punkar, G, Putallaz, G, Raimondi, P, Rankin, P, Ratcliff, B, Reeves, T, Rensing, P, Richman, J, Rinta, R, Robertson, L, Rochester, L, Rosenson, L, Ross, M, Rothberg, J, Rothenberg, A, Rowson, P, Russell, J, Rust, D, Rutz, E, Saez, P, Santha, A, Santocchia, A, Saxton, O, Schalk, T, Schenk, P, Schindler, R, Schneekloth, U, Schneider, M, Schultz, D, Schultz, G, Schumm, B, Seeman, J, Seiden, A, Servoli, L, Settles, M, Shaevitz, M, Shank, J, Shapiro, G, Shapiro, S, Shaw, H, Sheppard, J, Sherden, D, Shimomura, T, Shoup, A, Shypit, R, Siemann, R, Simopoulos, C, Skarpaas, K, Smith, S, Snyder, A, Snyder, J, Sobie, R, Sokoloff, M, Spence, W, Spencer, E, Stlorant, S, Stamer, P, Steiner, H, Steiner, R, Stephenson, R, Stewart, G, Stiles, P, Stockdale, I, Strauss, M, Su, D, Suekane, F, Sugiyama, A, Suzuki, S, Swartz, M, Szumilo, A, Tahar, M, Takahashi, T, Tang, H, Tappern, G, Tarnopolsky, G, Taylor, F, Tecchio, M, Thaler, J, Toevs, F, Toge, N, Turcotte, M, Turk, J, Turner, J, Usher, T, Vavra, J, Vannini, C, Vella, E, Venuti, J, Verdier, R, Verdini, P, Wadsworth, B, Waite, A, Walker, N, Walz, D, Warner, D, Watt, R, Watts, S, Weber, T, Weidemann, A, Whitaker, J, White, S, Wickens, F, Wickert, S, Williams, D, Williams, R, Williams, S, Wilson, R, Wisniewski, W, Witherell, M, Woodly, M, Woods, M, Word, G, Wyss, J, Yamamoto, R, Yamartino, J, Yee, C, Yeremian, A, Yellin, S, Yim, A, Young, C, Young, K, Yuta, H, Zapalac, G, Zdarko, R, Zeitlin, C, Zhou, J, Ziemann, V, Zolotorev, M, and Zucchelli, P

Subjects
POLARIZATION, DECAYS
Abstract

We present the first measurement of the left-right cross section asymmetry (ALR) for Z boson production by e+e- collisions. The measurement was performed at a center-of-mass energy of 91.55 GeV with the SLD detector at the SLAC Linear Collider which utilized a longitudinally polarized electron beam. The average beam polarization was (22.4±0.6)%. Using a sample of 10 224 Z decays, we measure ALR to be 0.100±0.044(stat)±0.004(syst), which determines the effective weak mixing angle to be sin2θWeff=0.2378 ±0.0056(stat)±0.0005(syst).

Published
1993

10. FIRST MEASUREMENT OF THE LEFT-RIGHT ASYMMETRY IN Z-BOSON PRODUCTION

Author

Abe, K, Abt, I, Acton, P, Adolphsen, C, Agnew, G, Alber, C, Alzofon, D, Antilogus, P, Arroyo, C, Ash, W, Ashford, V, Astbury, A, Aston, D, Au, Y, Axen, D, Bacchetta, N, Baird, K, Baker, W, Baltay, C, Band, H, Baranko, G, Bardon, O, Barrera, F, Battiston, R, Bazarko, A, Bean, A, Beer, G, Belcinski, R, Bell, R, Bendavid, R, Benvenuti, A, Berger, R, Berridge, S, Bethke, S, Biasini, M, Bienz, T, Bilei, G, Bird, F, Bisello, D, Blaylock, G, Blumberg, R, Bogart, J, Bolton, T, Bougerolle, S, Bower, G, Boyce, R, Brau, J, Breidenbach, M, Browder, T, Bugg, W, Burgess, B, Burke, D, Burnett, T, Burrows, P, Busza, W, Byers, B, Calcaterra, A, Caldwell, D, Calloway, D, Camanzi, B, Camilleri, I, Carpinelli, M, Carr, J, Cartwright, S, Cassell, R, Castaldi, R, Castro, A, Cavallisforza, M, Chadwick, G, Chamberlain, O, Chambers, D, Chen, L, Clarke, P, Claus, R, Clendenin, J, Cohn, H, Coller, J, Cook, V, Cords, D, Cotton, R, Cowan, R, Coyle, P, Coyne, D, Craddock, W, Cutler, H, Doliveira, A, Damerell, C, Dasu, S, Davis, R, Desangro, R, Desimone, P, Desimone, S, Dean, T, Decker, R, Dejongh, F, Dellorso, R, Disco, A, Dolin, R, Downing, R, Du, Y, Dubois, R, Duboscq, J, Dunwoodie, W, Durrett, D, Ecklund, S, Eigen, G, Eisenstein, B, Elia, R, Emma, P, Emmet, W, English, R, Erdos, E, Escalera, J, Fan, C, Fero, M, Ferrie, J, Fieguth, T, Flynn, J, Forbush, D, Fortune, K, Fox, J, Fox, M, Frey, R, Freytag, D, Friedman, J, Frisch, J, Fujimoto, J, Furuno, K, Gaillard, M, Gallinaro, M, Garwin, E, Gillman, T, Gioumousis, A, Gladding, G, Gonzalez, S, Gurd, D, Hale, D, Haller, G, Hallewell, G, Hamilton, V, Haney, M, Hanslkozanecka, T, Hargis, H, Harrison, J, Hart, E, Hasegawa, K, Hasegawa, Y, Hedges, S, Hertzbach, S, Hildreth, M, Hilomen, R, Himel, T, Hitlin, D, Hodges, T, Hodgson, J, Hoeflich, J, Honma, A, Horelick, D, Huber, J, Huffer, M, Hughes, E, Hwang, H, Hyatt, E, Iwasaki, Y, Izen, J, Jobe, R, Jacques, P, Jako, C, Johnson, A, Johnson, J, Johnson, R, Jones, S, Junk, T, Kaiser, S, Kajikawa, R, Kalelkar, M, Kang, H, Karliner, I, Kawahara, H, Keeler, R, Kelsey, M, Kendall, H, Kharakh, D, Kim, H, Kim, P, King, R, Klein, M, Kofler, R, Kowitt, M, Krejcik, P, Krishna, N, Kroeger, R, Kulikov, A, Kunz, P, Kwon, Y, Labs, J, Langstaff, R, Langston, M, Larsen, R, Lath, A, Lauber, J, Leith, D, Limberg, T, Lintern, L, Liu, X, Loreti, M, Lu, A, Lynch, H, Lyons, T, Ma, J, Majid, W, Mancinelli, G, Manly, S, Mansour, D, Mantovani, G, Markiewicz, T, Maruyama, T, Mason, G, Masuda, H, Mathys, L, Mazaheri, G, Mazzucato, A, Mazzucato, E, Mccormick, D, Mcgowan, J, Mchugh, S, Mckemey, A, Meadows, B, Mellor, D, Messner, R, Mincer, A, Minty, M, Mockett, P, Moffeit, K, Morrison, R, Mours, B, Mueller, G, Muller, D, Mundy, G, Nagamine, T, Nauenberg, U, Neal, H, Nelson, D, Nesterov, V, Nordby, M, Nussbaum, M, Nuttall, A, Ogren, H, Olsen, J, Oram, C, Osborne, L, Ossa, R, Oxoby, G, Paffrath, L, Palounek, A, Panvini, R, Park, H, Pauluzzi, M, Pavel, T, Perrier, F, Peruzzi, I, Pescara, L, Peters, D, Petersen, H, Petradza, M, Phinney, N, Piccolo, M, Piemontese, L, Pieroni, E, Pitthan, R, Pitts, K, Plano, R, Poffenberger, P, Prepost, R, Prescott, C, Pripstein, D, Punkar, G, Putallaz, G, Raimondi, P, Rankin, P, Ratcliff, B, Reeves, T, Rensing, P, Richman, J, Rinta, R, Robertson, L, Rochester, L, Rosenson, L, Ross, M, Rothberg, J, Rothenberg, A, Rowson, P, Russell, J, Rust, D, Rutz, E, Saez, P, Santha, A, Santocchia, A, Saxton, O, Schalk, T, Schenk, P, Schindler, R, Schneekloth, U, Schneider, M, Schultz, D, Schultz, G, Schumm, B, Seeman, J, Seiden, A, Servoli, L, Settles, M, Shaevitz, M, Shank, J, Shapiro, G, Shapiro, S, Shaw, H, Sheppard, J, Sherden, D, Shimomura, T, Shoup, A, Shypit, R, Siemann, R, Simopoulos, C, Skarpaas, K, Smith, S, Snyder, A, Snyder, J, Sobie, R, Sokoloff, M, Spence, W, Spencer, E, Stlorant, S, Stamer, P, Steiner, H, Steiner, R, Stephenson, R, Stewart, G, Stiles, P, Stockdale, I, Strauss, M, Su, D, Suekane, F, Sugiyama, A, Suzuki, S, Swartz, M, Szumilo, A, Tahar, M, Takahashi, T, Tang, H, Tappern, G, Tarnopolsky, G, Taylor, F, Tecchio, M, Thaler, J, Toevs, F, Toge, N, Turcotte, M, Turk, J, Turner, J, Usher, T, Vavra, J, Vannini, C, Vella, E, Venuti, J, Verdier, R, Verdini, P, Wadsworth, B, Waite, A, Walker, N, Walz, D, Warner, D, Watt, R, Watts, S, Weber, T, Weidemann, A, Whitaker, J, White, S, Wickens, F, Wickert, S, Williams, D, Williams, R, Williams, S, Wilson, R, Wisniewski, W, Witherell, M, Woodly, M, Woods, M, Word, G, Wyss, J, Yamamoto, R, Yamartino, J, Yee, C, Yeremian, A, Yellin, S, Yim, A, Young, C, Young, K, Yuta, H, Zapalac, G, Zdarko, R, Zeitlin, C, Zhou, J, Ziemann, V, Zolotorev, M, Zucchelli, P, ABE K, ABT I, ACTON PD, ADOLPHSEN CE, AGNEW G, ALBER C, ALZOFON DF, ANTILOGUS P, ARROYO C, ASH WW, ASHFORD V, ASTBURY A, ASTON D, AU Y, AXEN DA, BACCHETTA N, BAIRD KG, BAKER W, BALTAY C, BAND HR, BARANKO G, BARDON O, BARRERA F, BATTISTON R, BAZARKO AO, BEAN A, BEER G, BELCINSKI RJ, BELL RA, BENDAVID R, BENVENUTI AC, BERGER R, BERRIDGE SC, BETHKE S, BIASINI M, BIENZ T, BILEI GM, BIRD F, BISELLO D, BLAYLOCK G, BLUMBERG R, BOGART JR, BOLTON T, BOUGEROLLE S, BOWER GR, BOYCE RF, BRAU JE, BREIDENBACH M, BROWDER TE, BUGG WM, BURGESS B, BURKE D, BURNETT TH, BURROWS PN, BUSZA W, BYERS BL, CALCATERRA A, CALDWELL DO, CALLOWAY D, CAMANZI B, CAMILLERI I, CARPINELLI, Massimo, CARR J, CARTWRIGHT S, CASSELL R, CASTALDI R, CASTRO A, CAVALLISFORZA M, CHADWICK GB, CHAMBERLAIN O, CHAMBERS D, CHEN L, CLARKE PEL, CLAUS R, CLENDENIN J, COHN HO, COLLER JA, COOK V, CORDS D, COTTON R, COWAN RF, COYLE PA, COYNE DG, CRADDOCK W, CUTLER H, DOLIVEIRA A, DAMERELL CJS, DASU S, DAVIS R, DESANGRO R, DESIMONE P, DESIMONE S, DEAN T, DECKER RJ, DEJONGH F, DELLORSO R, DISCO A, DOLIN R, DOWNING RW, DU YC, DUBOIS R, DUBOSCQ JE, DUNWOODIE W, DURRETT DD, ECKLUND SD, EIGEN G, EISENSTEIN BI, ELIA R, EMMA PJ, EMMET WT, ENGLISH RL, ERDOS E, ESCALERA J, FAN C, FERO MJ, FERRIE J, FIEGUTH T, FLYNN J, FORBUSH DA, FORTUNE KM, FOX JD, FOX MJ, FREY R, FREYTAG DR, FRIEDMAN JI, FRISCH J, FUJIMOTO J, FURUNO K, GAILLARD M, GALLINARO M, GARWIN E, GILLMAN T, GIOUMOUSIS A, GLADDING G, GONZALEZ S, GURD DP, HALE DL, HALLER GM, HALLEWELL GD, HAMILTON V, HANEY MJ, HANSLKOZANECKA T, HARGIS H, HARRISON J, HART EL, HASEGAWA K, HASEGAWA Y, HEDGES S, HERTZBACH SS, HILDRETH MD, HILOMEN RC, HIMEL TM, HITLIN DG, HODGES TA, HODGSON J, HOEFLICH JJ, HONMA A, HORELICK D, HUBER J, HUFFER ME, HUGHES EW, HWANG H, HYATT E, IWASAKI Y, IZEN JM, JOBE RK, JACQUES P, JAKO C, JOHNSON AS, JOHNSON JR, JOHNSON RA, JONES S, JUNK T, KAISER S, KAJIKAWA R, KALELKAR M, KANG H, KARLINER I, KAWAHARA H, KEELER RK, KELSEY MH, KENDALL HW, KHARAKH D, KIM HY, KIM PC, KING R, KLEIN M, KOFLER RR, KOWITT M, KREJCIK P, KRISHNA NM, KROEGER RS, KULIKOV AV, KUNZ PF, KWON Y, LABS JF, LANGSTAFF RR, LANGSTON M, LARSEN R, LATH A, LAUBER JA, LEITH DWG, LIMBERG T, LINTERN L, LIU X, LORETI M, LU A, LYNCH HL, LYONS T, MA J, MAJID WA, MANCINELLI G, MANLY S, MANSOUR D, MANTOVANI G, MARKIEWICZ TW, MARUYAMA T, MASON GR, MASUDA H, MATHYS L, MAZAHERI G, MAZZUCATO A, MAZZUCATO E, MCCORMICK DJ, MCGOWAN JF, MCHUGH S, MCKEMEY AK, MEADOWS BT, MELLOR DJ, MESSNER R, MINCER AI, MINTY M, MOCKETT PM, MOFFEIT KC, MORRISON RJ, MOURS B, MUELLER G, MULLER D, MUNDY G, NAGAMINE T, NAUENBERG U, NEAL H, NELSON D, NESTEROV V, NORDBY M, NUSSBAUM M, NUTTALL A, OGREN H, OLSEN J, ORAM C, OSBORNE LS, OSSA R, OXOBY G, PAFFRATH L, PALOUNEK A, PANVINI RS, PARK H, PAULUZZI M, PAVEL TJ, PERRIER F, PERUZZI I, PESCARA L, PETERS D, PETERSEN H, PETRADZA M, PHINNEY N, PICCOLO M, PIEMONTESE L, PIERONI E, PITTHAN R, PITTS KT, PLANO RJ, POFFENBERGER PR, PREPOST R, PRESCOTT CY, PRIPSTEIN D, PUNKAR GD, PUTALLAZ G, RAIMONDI P, RANKIN P, RATCLIFF BN, REEVES TW, RENSING PE, RICHMAN JD, RINTA R, ROBERTSON LP, ROCHESTER LS, ROSENSON L, ROSS MC, ROTHBERG JE, ROTHENBERG A, ROWSON PC, RUSSELL JJ, RUST D, RUTZ E, SAEZ P, SANTHA AK, SANTOCCHIA A, SAXTON OH, SCHALK T, SCHENK PR, SCHINDLER RH, SCHNEEKLOTH U, SCHNEIDER M, SCHULTZ D, SCHULTZ GE, SCHUMM BA, SEEMAN JT, SEIDEN A, SERVOLI L, SETTLES M, SHAEVITZ MH, SHANK JT, SHAPIRO G, SHAPIRO SL, SHAW H, SHEPPARD JC, SHERDEN DJ, SHIMOMURA T, SHOUP A, SHYPIT RL, SIEMANN RH, SIMOPOULOS C, SKARPAAS K, SMITH SR, SNYDER A, SNYDER JA, SOBIE R, SOKOLOFF MD, SPENCE WL, SPENCER EN, STLORANT S, STAMER P, STEINER H, STEINER R, STEPHENSON RJ, STEWART G, STILES P, STOCKDALE IE, STRAUSS MG, SU D, SUEKANE F, SUGIYAMA A, SUZUKI S, SWARTZ M, SZUMILO A, TAHAR MZ, TAKAHASHI T, TANG H, TAPPERN GJ, TARNOPOLSKY G, TAYLOR FE, TECCHIO M, THALER JJ, TOEVS F, TOGE N, TURCOTTE M, TURK JD, TURNER JL, USHER T, VAVRA J, VANNINI C, VELLA E, VENUTI JP, VERDIER R, VERDINI PG, WADSWORTH BF, WAITE AP, WALKER NJ, WALZ D, WARNER D, WATT R, WATTS SJ, WEBER T, WEIDEMANN AW, WHITAKER JS, WHITE SL, WICKENS FJ, WICKERT SA, WILLIAMS DA, WILLIAMS DC, WILLIAMS RW, WILLIAMS SH, WILSON RJ, WISNIEWSKI WJ, WITHERELL MS, WOODLY MD, WOODS M, WORD GB, WYSS J, YAMAMOTO RK, YAMARTINO JM, YEE C, YEREMIAN AD, YELLIN SJ, YIM A, YOUNG CC, YOUNG KK, YUTA H, ZAPALAC G, ZDARKO RW, ZEITLIN C, ZHOU J, ZIEMANN V, ZOLOTOREV M, ZUCCHELLI P., Abe, K, Abt, I, Acton, P, Adolphsen, C, Agnew, G, Alber, C, Alzofon, D, Antilogus, P, Arroyo, C, Ash, W, Ashford, V, Astbury, A, Aston, D, Au, Y, Axen, D, Bacchetta, N, Baird, K, Baker, W, Baltay, C, Band, H, Baranko, G, Bardon, O, Barrera, F, Battiston, R, Bazarko, A, Bean, A, Beer, G, Belcinski, R, Bell, R, Bendavid, R, Benvenuti, A, Berger, R, Berridge, S, Bethke, S, Biasini, M, Bienz, T, Bilei, G, Bird, F, Bisello, D, Blaylock, G, Blumberg, R, Bogart, J, Bolton, T, Bougerolle, S, Bower, G, Boyce, R, Brau, J, Breidenbach, M, Browder, T, Bugg, W, Burgess, B, Burke, D, Burnett, T, Burrows, P, Busza, W, Byers, B, Calcaterra, A, Caldwell, D, Calloway, D, Camanzi, B, Camilleri, I, Carpinelli, M, Carr, J, Cartwright, S, Cassell, R, Castaldi, R, Castro, A, Cavallisforza, M, Chadwick, G, Chamberlain, O, Chambers, D, Chen, L, Clarke, P, Claus, R, Clendenin, J, Cohn, H, Coller, J, Cook, V, 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Jacques, P, Jako, C, Johnson, A, Johnson, J, Johnson, R, Jones, S, Junk, T, Kaiser, S, Kajikawa, R, Kalelkar, M, Kang, H, Karliner, I, Kawahara, H, Keeler, R, Kelsey, M, Kendall, H, Kharakh, D, Kim, H, Kim, P, King, R, Klein, M, Kofler, R, Kowitt, M, Krejcik, P, Krishna, N, Kroeger, R, Kulikov, A, Kunz, P, Kwon, Y, Labs, J, Langstaff, R, Langston, M, Larsen, R, Lath, A, Lauber, J, Leith, D, Limberg, T, Lintern, L, Liu, X, Loreti, M, Lu, A, Lynch, H, Lyons, T, Ma, J, Majid, W, Mancinelli, G, Manly, S, Mansour, D, Mantovani, G, Markiewicz, T, Maruyama, T, Mason, G, Masuda, H, Mathys, L, Mazaheri, G, Mazzucato, A, Mazzucato, E, Mccormick, D, Mcgowan, J, Mchugh, S, Mckemey, A, Meadows, B, Mellor, D, Messner, R, Mincer, A, Minty, M, Mockett, P, Moffeit, K, Morrison, R, Mours, B, Mueller, G, Muller, D, Mundy, G, Nagamine, T, Nauenberg, U, Neal, H, Nelson, D, Nesterov, V, Nordby, M, Nussbaum, M, Nuttall, A, Ogren, H, Olsen, J, Oram, C, Osborne, L, Ossa, R, Oxoby, G, Paffrath, L, Palounek, A, Panvini, R, Park, H, Pauluzzi, M, Pavel, T, Perrier, F, Peruzzi, I, Pescara, L, Peters, D, Petersen, H, Petradza, M, Phinney, N, Piccolo, M, Piemontese, L, Pieroni, E, Pitthan, R, Pitts, K, Plano, R, Poffenberger, P, Prepost, R, Prescott, C, Pripstein, D, Punkar, G, Putallaz, G, Raimondi, P, Rankin, P, Ratcliff, B, Reeves, T, Rensing, P, Richman, J, Rinta, R, Robertson, L, Rochester, L, Rosenson, L, Ross, M, Rothberg, J, Rothenberg, A, Rowson, P, Russell, J, Rust, D, Rutz, E, Saez, P, Santha, A, Santocchia, A, Saxton, O, Schalk, T, Schenk, P, Schindler, R, Schneekloth, U, Schneider, M, Schultz, D, Schultz, G, Schumm, B, Seeman, J, Seiden, A, Servoli, L, Settles, M, Shaevitz, M, Shank, J, Shapiro, G, Shapiro, S, Shaw, H, Sheppard, J, Sherden, D, Shimomura, T, Shoup, A, Shypit, R, Siemann, R, Simopoulos, C, Skarpaas, K, Smith, S, Snyder, A, Snyder, J, Sobie, R, Sokoloff, M, Spence, W, Spencer, E, Stlorant, S, Stamer, P, Steiner, H, Steiner, R, Stephenson, R, Stewart, G, Stiles, P, Stockdale, I, Strauss, M, Su, D, Suekane, F, Sugiyama, A, Suzuki, S, Swartz, M, Szumilo, A, Tahar, M, Takahashi, T, Tang, H, Tappern, G, Tarnopolsky, G, Taylor, F, Tecchio, M, Thaler, J, Toevs, F, Toge, N, Turcotte, M, Turk, J, Turner, J, Usher, T, Vavra, J, Vannini, C, Vella, E, Venuti, J, Verdier, R, Verdini, P, Wadsworth, B, Waite, A, Walker, N, Walz, D, Warner, D, Watt, R, Watts, S, Weber, T, Weidemann, A, Whitaker, J, White, S, Wickens, F, Wickert, S, Williams, D, Williams, R, Williams, S, Wilson, R, Wisniewski, W, Witherell, M, Woodly, M, Woods, M, Word, G, Wyss, J, Yamamoto, R, Yamartino, J, Yee, C, Yeremian, A, Yellin, S, Yim, A, Young, C, Young, K, Yuta, H, Zapalac, G, Zdarko, R, Zeitlin, C, Zhou, J, Ziemann, V, Zolotorev, M, Zucchelli, P, ABE K, ABT I, ACTON PD, ADOLPHSEN CE, AGNEW G, ALBER C, ALZOFON DF, ANTILOGUS P, ARROYO C, ASH WW, ASHFORD V, ASTBURY A, ASTON D, AU Y, AXEN DA, BACCHETTA N, BAIRD KG, BAKER W, BALTAY C, BAND HR, BARANKO G, BARDON O, BARRERA F, BATTISTON R, BAZARKO AO, BEAN A, BEER G, BELCINSKI RJ, BELL RA, BENDAVID R, BENVENUTI AC, BERGER R, BERRIDGE SC, BETHKE S, BIASINI M, BIENZ T, BILEI GM, BIRD F, BISELLO D, BLAYLOCK G, BLUMBERG R, BOGART JR, BOLTON T, BOUGEROLLE S, BOWER GR, BOYCE RF, BRAU JE, BREIDENBACH M, BROWDER TE, BUGG WM, BURGESS B, BURKE D, BURNETT TH, BURROWS PN, BUSZA W, BYERS BL, CALCATERRA A, CALDWELL DO, CALLOWAY D, CAMANZI B, CAMILLERI I, CARPINELLI, Massimo, CARR J, CARTWRIGHT S, CASSELL R, CASTALDI R, CASTRO A, CAVALLISFORZA M, CHADWICK GB, CHAMBERLAIN O, CHAMBERS D, CHEN L, CLARKE PEL, CLAUS R, CLENDENIN J, COHN HO, COLLER JA, COOK V, CORDS D, COTTON R, COWAN RF, COYLE PA, COYNE DG, CRADDOCK W, CUTLER H, DOLIVEIRA A, DAMERELL CJS, DASU S, DAVIS R, DESANGRO R, DESIMONE P, DESIMONE S, DEAN T, DECKER RJ, DEJONGH F, DELLORSO R, DISCO A, DOLIN R, DOWNING RW, DU YC, DUBOIS R, DUBOSCQ JE, DUNWOODIE W, DURRETT DD, ECKLUND SD, EIGEN G, EISENSTEIN BI, ELIA R, EMMA PJ, EMMET WT, ENGLISH RL, ERDOS E, ESCALERA J, FAN C, FERO MJ, FERRIE J, FIEGUTH T, FLYNN J, FORBUSH DA, FORTUNE KM, FOX JD, FOX MJ, FREY R, FREYTAG DR, FRIEDMAN JI, FRISCH J, FUJIMOTO J, FURUNO K, GAILLARD M, GALLINARO M, GARWIN E, GILLMAN T, GIOUMOUSIS A, GLADDING G, GONZALEZ S, GURD DP, HALE DL, HALLER GM, HALLEWELL GD, HAMILTON V, HANEY MJ, HANSLKOZANECKA T, HARGIS H, HARRISON J, HART EL, HASEGAWA K, HASEGAWA Y, HEDGES S, HERTZBACH SS, HILDRETH MD, HILOMEN RC, HIMEL TM, HITLIN DG, HODGES TA, HODGSON J, HOEFLICH JJ, HONMA A, HORELICK D, HUBER J, HUFFER ME, HUGHES EW, HWANG H, HYATT E, IWASAKI Y, IZEN JM, JOBE RK, JACQUES P, JAKO C, JOHNSON AS, JOHNSON JR, JOHNSON RA, JONES S, JUNK T, KAISER S, KAJIKAWA R, KALELKAR M, KANG H, KARLINER I, KAWAHARA H, KEELER RK, KELSEY MH, KENDALL HW, KHARAKH D, KIM HY, KIM PC, KING R, KLEIN M, KOFLER RR, KOWITT M, KREJCIK P, KRISHNA NM, KROEGER RS, KULIKOV AV, KUNZ PF, KWON Y, LABS JF, LANGSTAFF RR, LANGSTON M, LARSEN R, LATH A, LAUBER JA, LEITH DWG, LIMBERG T, LINTERN L, LIU X, LORETI M, LU A, LYNCH HL, LYONS T, MA J, MAJID WA, MANCINELLI G, MANLY S, MANSOUR D, MANTOVANI G, MARKIEWICZ TW, MARUYAMA T, MASON GR, MASUDA H, MATHYS L, MAZAHERI G, MAZZUCATO A, MAZZUCATO E, MCCORMICK DJ, MCGOWAN JF, MCHUGH S, MCKEMEY AK, MEADOWS BT, MELLOR DJ, MESSNER R, MINCER AI, MINTY M, MOCKETT PM, MOFFEIT KC, MORRISON RJ, MOURS B, MUELLER G, MULLER D, MUNDY G, NAGAMINE T, NAUENBERG U, NEAL H, NELSON D, NESTEROV V, NORDBY M, NUSSBAUM M, NUTTALL A, OGREN H, OLSEN J, ORAM C, OSBORNE LS, OSSA R, OXOBY G, PAFFRATH L, PALOUNEK A, PANVINI RS, PARK H, PAULUZZI M, PAVEL TJ, PERRIER F, PERUZZI I, PESCARA L, PETERS D, PETERSEN H, PETRADZA M, PHINNEY N, PICCOLO M, PIEMONTESE L, PIERONI E, PITTHAN R, PITTS KT, PLANO RJ, POFFENBERGER PR, PREPOST R, PRESCOTT CY, PRIPSTEIN D, PUNKAR GD, PUTALLAZ G, RAIMONDI P, RANKIN P, RATCLIFF BN, REEVES TW, RENSING PE, RICHMAN JD, RINTA R, ROBERTSON LP, ROCHESTER LS, ROSENSON L, ROSS MC, ROTHBERG JE, ROTHENBERG A, ROWSON PC, RUSSELL JJ, RUST D, RUTZ E, SAEZ P, SANTHA AK, SANTOCCHIA A, SAXTON OH, SCHALK T, SCHENK PR, SCHINDLER RH, SCHNEEKLOTH U, SCHNEIDER M, SCHULTZ D, SCHULTZ GE, SCHUMM BA, SEEMAN JT, SEIDEN A, SERVOLI L, SETTLES M, SHAEVITZ MH, SHANK JT, SHAPIRO G, SHAPIRO SL, SHAW H, SHEPPARD JC, SHERDEN DJ, SHIMOMURA T, SHOUP A, SHYPIT RL, SIEMANN RH, SIMOPOULOS C, SKARPAAS K, SMITH SR, SNYDER A, SNYDER JA, SOBIE R, SOKOLOFF MD, SPENCE WL, SPENCER EN, STLORANT S, STAMER P, STEINER H, STEINER R, STEPHENSON RJ, STEWART G, STILES P, STOCKDALE IE, STRAUSS MG, SU D, SUEKANE F, SUGIYAMA A, SUZUKI S, SWARTZ M, SZUMILO A, TAHAR MZ, TAKAHASHI T, TANG H, TAPPERN GJ, TARNOPOLSKY G, TAYLOR FE, TECCHIO M, THALER JJ, TOEVS F, TOGE N, TURCOTTE M, TURK JD, TURNER JL, USHER T, VAVRA J, VANNINI C, VELLA E, VENUTI JP, VERDIER R, VERDINI PG, WADSWORTH BF, WAITE AP, WALKER NJ, WALZ D, WARNER D, WATT R, WATTS SJ, WEBER T, WEIDEMANN AW, WHITAKER JS, WHITE SL, WICKENS FJ, WICKERT SA, WILLIAMS DA, WILLIAMS DC, WILLIAMS RW, WILLIAMS SH, WILSON RJ, WISNIEWSKI WJ, WITHERELL MS, WOODLY MD, WOODS M, WORD GB, WYSS J, YAMAMOTO RK, YAMARTINO JM, YEE C, YEREMIAN AD, YELLIN SJ, YIM A, YOUNG CC, YOUNG KK, YUTA H, ZAPALAC G, ZDARKO RW, ZEITLIN C, ZHOU J, ZIEMANN V, ZOLOTOREV M, and ZUCCHELLI P.

Abstract

We present the first measurement of the left-right cross-section asymmetry (A(LR)) in Z-boson production observed at the SLAC Linear Collider. In 1992 the SLD detector recorded 10 224 Z events produced by the collision of longitudinally polarized electrons with an unpolarized positron beam at a center-of-mass energy of 91.55 GeV. The average electron beam polarization during the run was (22.4 +/- 0.6)%. We measure A(LR) to be 0.100 +/- 0.044 (stat.) +/- 0.004 (syst.), which determines the effective weak mixing angle to be sin2 theta(W)eff = 0.2378 +/- 0.0056 (stat.) +/- 0.0005 (syst.).

Published
1993

11. LUX-ZEPLIN (LZ) Conceptual Design Report

Author

Collaboration, TLZ, Akerib, DS, Akerlof, CW, Akimov, DY, Alsum, SK, Araújo, HM, Bai, X, Bailey, AJ, Balajthy, J, Balashov, S, Barry, MJ, Wei, W-Z, While, M, White, DT, Whitis, TJ, Wisniewski, WJ, Witherell, MS, Wolfs, FLH, Woods, E, Woodward, D, Bramante, R, Lorenzon, W, Worm, SD, Yeh, M, Yin, J, Young, SK, Zhang, C, Buckley, JH, Bugaev, Bunker, R, Burdin, S, Busenitz, JK, Luitz, S, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Cherwinka, JJ, Chiller, AA, Chiller, C, Craddock, WW, Majewski, P, Currie, A, Cutter, JE, Cunha, JPD, Dahl, CE, Dasu, S, Davison, TJR, Viveiros, LD, Dobi, A, Dobson, JEY, Druszkiewicz, E, Malling, DC, Edberg, TK, Edwards, BN, Edwards, WR, Elnimr, MM, Emmet, WT, Faham, CH, Fiorucci, S, Ford, P, Francis, VB, Fu, C, Manalaysay, AG, Gaitskell, RJ, Gantos, NJ, Gehman, VM, Gerhard, RM, Ghag, C, Gilchriese, MGD, Gomber, B, Hall, CR, Harris, A, Haselschwardt, SJ, Manenti, L, Hertel, SA, Hoff, MD, Holbrook, B, Holtom, E, Huang, DQ, Hurteau, TW, Ignarra, CM, Jacobsen, RG, Ji, W, Ji, X, Mannino, RL, Johnson, M, Ju, Y, Kamdin, K, Kazkaz, K, Khaitan, D, Khazov, A, Khromov, AV, Konovalov, AM, Korolkova, EV, Kraus, H, Markley, DJ, Krebs, HJ, Kudryavtsev, VA, Kumpan, AV, Kyre, S, Larsen, NA, Lee, C, Lenardo, BG, Lesko, KT, Liao, F-T, Lin, J, Martin, TJ, Lindote, A, Lippincott, WH, Liu, J, Liu, X, Lopes, MI, Marzioni, MF, Bauer, P, McKinsey, DN, Mei, D-M, Meng, Y, Miller, EH, Mock, J, Monzani, ME, Morad, JA, Murphy, ASJ, Nelson, HN, Neves, F, Beltrame, P, Nikkel, JA, O'Neill, FG, O'Dell, J, O'Sullivan, K, Olevitch, MA, Oliver-Mallory, KC, Palladino, KJ, Pangilinan, M, Patton, SJ, Pease, EK, Bernard, EP, Piepke, A, Powell, S, Preece, RM, Pushkin, K, Ratcliff, BN, Reichenbacher, J, Reichhart, L, Rhyne, C, Rodrigues, JP, Rose, HJ, Bernstein, A, Rosero, R, Saba, JS, Sarychev, M, Schnee, RW, Schubnell, MSG, Scovell, PR, Shaw, S, Shutt, TA, Silva, C, Skarpaas, K, Biesiadzinski, TP, Skulski, W, Solovov, VN, Sorensen, P, Sosnovtsev, Stancu, I, Stark, MR, Stephenson, S, Stiegler, TM, Sumner, TJ, Sundarnath, K, Boast, KE, Szydagis, M, Taylor, DJ, Taylor, W, Tennyson, BP, Terman, PA, Thomas, KJ, Thomson, JA, Tiedt, DR, To, WH, Tomás, A, Bolozdynya, AI, Tripathi, M, Tull, CE, Tvrznikova, L, Uvarov, S, Va'vra, J, Grinten, MGDVD, Verbus, Vuosalo, CO, Waldron, WL, Wang, L, Boulton, EM, and Webb, RC

Subjects
hep-ex, 7. Clean energy, physics.ins-det, astro-ph.IM
Abstract

The design and performance of the LUX-ZEPLIN (LZ) detector is described as of March 2015 in this Conceptual Design Report. LZ is a second-generation dark-matter detector with the potential for unprecedented sensitivity to weakly interacting massive particles (WIMPs) of masses from a few GeV/c2 to hundreds of TeV/c2. With total liquid xenon mass of about 10 tonnes, LZ will be the most sensitive experiment for WIMPs in this mass region by the end of the decade. This report describes in detail the design of the LZ technical systems. Expected backgrounds are quantified and the performance of the experiment is presented. The LZ detector will be located at the Sanford Underground Research Facility in South Dakota. The organization of the LZ Project and a summary of the expected cost and current schedule are given.

12. First QCD results from SLD

Author

SLD Collaboration, Burrows, PN, Steiner, R, Coller, J, Johnson, AS, Shank, JT, Tahar, M, Warner, D, Whitaker, JS, Wilson, RJ, Acton, PD, Agnew, G, Clarke, P, Cotton, R, Hedges, S, McKemey, AK, Watts, SJ, De Jongh, F, Eigen, G, Hitlin, D, Kelsey, MH, Klein, M, Mincer, A, Wisniewski, WJ, Arroyo, C, Au, Y, Bazarko, A, Bolton, T, Camilleri, L, Hyatt, E, Rowson, PC, Shaevitz, MH, Ogren, H, Rust, D, Snyder, A, Benvenuti, AC, Camanzi, B, DiCapua, E, Mazzucato, E, Piemontese, L, Saitta, B, Zucchelli, P, Carpinelli, M, Castaldi, R, Dell'Orso, R, Pieroni, E, Vannini, C, Verdini, PG, Fujimoto, J, Calcaterra, A, De Sangro, R, De Simone, P, De Simone, S, Gallinaro, M, Peruzzi, I, Piccolo, M, Kowitt, M, Schumm, B, Shapiro, G, Steiner, H, Bardon, O, Busza, W, Cartwright, S, Cowan, R, Farhat, B, Fero, M, Friedman, JI, Gonzalez, S, Hansl-Kozanecka, T, Kendall, HW, Lath, A, Lyons, T, Osborne, LS, Palounek, APT, Quigley, J, Rosenson, L, Schneekloth, U, Taylor, F, Torrence, E, Verdier, R, Wadsworth, B, Williams, D, Yamamoto, RK, Yamartino, JM, Kajikawka, R, Sugiyama, A, Suzuki, S, Baird, K, Jacques, P, Kalelkar, M, Matthews, JN, Plano, R, Stamer, P, Word, G, Damerell, C, English, R, Gillman, A, Lintern, L, Stephenson, R, Su, D, Tappern, G, Wickens, F, Atwood, WB, Chadwick, GB, Elia, R, Hughes, E, Kaiser, S, King, R, Markiewicz, TW, Maruyama, T, Moffeit, KC, Mours, B, Petradza, M, Prescott, CY, Rochester, LS, Saxton, O, Aston, D, Bienz, T, Dasu, S, Dunwoodie, WM, Fernandez-Texon, F, Hallewell, GD, Kawahara, H, Kunz, PF, Kwon, YJ, Leith, DWGS, Mueller, G, Muller, D, Nagamine, T, Oxoby, GJ, Pavel, T, Ratcliff, B, Rensing, P, Schultz, D, Shapiro, S, Simopoulos, C, Stiles, P, Toge, N, Va'vra, J, Watt, RD, Weber, T, Blumberg, R, Burgess, B, Chambers, D, Craddoc, W, Cutler, H, Davis, R, Ferrie, JD, Petersen, H, Rinta, R, Walz, DR, Dean, T, Fox, JD, Fox, MJ, Horelick, D, Kang, HK, Larsen, RS, Olsen, J, Yim, A, Burke, DL, Hildreth, MD, Jones, S, Mazaheri, G, Punkar, GD, Hilomen, RC, Baker, W, Barrera, F, Boyce, Byers, BL, Flynn, J, Kharakh, D, Mansour, D, Nordby, M, Nuttall, A, Ossa, R, Shaw, H, Williams, SH, Alzofon, DF, Ash, W, Bell, R, Berger, R, Beville, E, Bogart, J, Bower, G, Breidenbach, M, Browder, T, Cassell, R, Claus, R, Dubois, R, Escalera, J, Freytag, D, Haller, GM, Hamilton, V, Hodgson, JA, Hoeflich, J, Huffer, M, Jako, C, Junk, T, Kim, PC, Labs, J, Lynch, HL, Masuda, H, Messner, R, Neal, HA, Nelson, D, Paffrath, L, Putallaz, G, Rothenberg, A, Russell, JJ, Saez, P, Schindler, RH, Sherden, D, Skarpaas, K, Smith, SR, Waite, A, Yee, C, Zdarko, R, Swartz, ML, Takahashi, T, Usher, T, Young, C, Antilogus, P, Abe, K, Hasegawa, K, Hasegawa, Y, Iwasaki, Y, Suekane, F, Yuta, H, Gurd, DP, Oram, CJ, Bauer, D, Bean, A, Caldwell, DO, Dolin, R, Duboscq, J, Hale, D, Huber, J, Lu, A, Mathys, L, McHugh, S, Morrison, RJ, Richman, J, Wickert, SA, Witherell, MS, Yellin, SJ, Blaylock, G, Cavalli-Sforza, M, Coyle, PA, Coyne, DG, Liu, X, Schalk, T, Schneider, M, Seiden, A, Spencer, E, Bacchetta, N, Bisello, D, Castro, A, Loreti, M, Mazzucato, A, Pescara, L, Tecchio, M, Wyss, J, Battiston, R, Biasini, M, Bilei, GM, Mancinelli, G, Mantovani, GC, Pauluzzi, M, Servoli, L, Axen, DA, Bougerolle, S, Peters, D, Shypit, R, Sobie, R, Choi, K, D'Oliviera, A, Johnson, RA, Martinez, J, Meadows, BT, Nussbaum, M, Rutz, E, Santha, AKS, Shoup, A, Sokoloff, M, Stockdale, IE, Alber, C, Baranko, G, Carr, J, Durrett, DD, Erdos, E, Fan, C, Krishna, NM, Lauber, J, Nauenberg, U, Rankin, P, Schultz, G, Abt, I, Blockus, D, Downing, R, Eisenstein, B, Fortune, KM, Gladding, G, Haney, M, Izen, J, Karliner, I, Majid, W, McGowan, J, Mellor, D, Stewart, G, Thaler, J, Belcinski, R, Hertzbach, S, Kofler, R, Strauss, MG, Brau, J, Frey, R, Furuno, K, Hwang, H, Park, H, Pitts, KT, Zeitlin, C, Berridge, S, Bugg, WM, Cohn, HO, Du, P, Handler, T, Hart, EL, Kroeger, R S, Weidemann, A, White, SL, Astbury, A, Beer, GA, Hodges, T, Honma, A, Keeler, R, Langstaff, R, Mason, GR, Poffenberger, PR, Robertson, LP, Schenk, PR, Turcotte, M, Burnett, T, Cook, V, Forbush, D, Harrison, J, Kim, HY, Ma, J, Mockett, PM, Rothberg, JE, Szumilo, A, Toevs, F, Vella, E, Williams, RW, Young, KK, Band, H, Johnson, JR, Prepost, R, Zapalac, G, Chen, L, Panvini, R, Reeves, TW, Venuti, JP, Baltay, C, Ben-David, R, Disco, A, Emmet, WT, Manly, S, Snyder, JA, Turk, J, SLD Collaboration, Burrows, PN, Steiner, R, Coller, J, Johnson, AS, Shank, JT, Tahar, M, Warner, D, Whitaker, JS, Wilson, RJ, Acton, PD, Agnew, G, Clarke, P, Cotton, R, Hedges, S, McKemey, AK, Watts, SJ, De Jongh, F, Eigen, G, Hitlin, D, Kelsey, MH, Klein, M, Mincer, A, Wisniewski, WJ, Arroyo, C, Au, Y, Bazarko, A, Bolton, T, Camilleri, L, Hyatt, E, Rowson, PC, Shaevitz, MH, Ogren, H, Rust, D, Snyder, A, Benvenuti, AC, Camanzi, B, DiCapua, E, Mazzucato, E, Piemontese, L, Saitta, B, Zucchelli, P, Carpinelli, M, Castaldi, R, Dell'Orso, R, Pieroni, E, Vannini, C, Verdini, PG, Fujimoto, J, Calcaterra, A, De Sangro, R, De Simone, P, De Simone, S, Gallinaro, M, Peruzzi, I, Piccolo, M, Kowitt, M, Schumm, B, Shapiro, G, Steiner, H, Bardon, O, Busza, W, Cartwright, S, Cowan, R, Farhat, B, Fero, M, Friedman, JI, Gonzalez, S, Hansl-Kozanecka, T, Kendall, HW, Lath, A, Lyons, T, Osborne, LS, Palounek, APT, Quigley, J, Rosenson, L, Schneekloth, U, Taylor, F, Torrence, E, Verdier, R, Wadsworth, B, Williams, D, Yamamoto, RK, Yamartino, JM, Kajikawka, R, Sugiyama, A, Suzuki, S, Baird, K, Jacques, P, Kalelkar, M, Matthews, JN, Plano, R, Stamer, P, Word, G, Damerell, C, English, R, Gillman, A, Lintern, L, Stephenson, R, Su, D, Tappern, G, Wickens, F, Atwood, WB, Chadwick, GB, Elia, R, Hughes, E, Kaiser, S, King, R, Markiewicz, TW, Maruyama, T, Moffeit, KC, Mours, B, Petradza, M, Prescott, CY, Rochester, LS, Saxton, O, Aston, D, Bienz, T, Dasu, S, Dunwoodie, WM, Fernandez-Texon, F, Hallewell, GD, Kawahara, H, Kunz, PF, Kwon, YJ, Leith, DWGS, Mueller, G, Muller, D, Nagamine, T, Oxoby, GJ, Pavel, T, Ratcliff, B, Rensing, P, Schultz, D, Shapiro, S, Simopoulos, C, Stiles, P, Toge, N, Va'vra, J, Watt, RD, Weber, T, Blumberg, R, Burgess, B, Chambers, D, Craddoc, W, Cutler, H, Davis, R, Ferrie, JD, Petersen, H, Rinta, R, Walz, DR, Dean, T, Fox, JD, Fox, MJ, Horelick, D, Kang, HK, Larsen, RS, Olsen, J, Yim, A, Burke, DL, Hildreth, MD, Jones, S, Mazaheri, G, Punkar, GD, Hilomen, RC, Baker, W, Barrera, F, Boyce, Byers, BL, Flynn, J, Kharakh, D, Mansour, D, Nordby, M, Nuttall, A, Ossa, R, Shaw, H, Williams, SH, Alzofon, DF, Ash, W, Bell, R, Berger, R, Beville, E, Bogart, J, Bower, G, Breidenbach, M, Browder, T, Cassell, R, Claus, R, Dubois, R, Escalera, J, Freytag, D, Haller, GM, Hamilton, V, Hodgson, JA, Hoeflich, J, Huffer, M, Jako, C, Junk, T, Kim, PC, Labs, J, Lynch, HL, Masuda, H, Messner, R, Neal, HA, Nelson, D, Paffrath, L, Putallaz, G, Rothenberg, A, Russell, JJ, Saez, P, Schindler, RH, Sherden, D, Skarpaas, K, Smith, SR, Waite, A, Yee, C, Zdarko, R, Swartz, ML, Takahashi, T, Usher, T, Young, C, Antilogus, P, Abe, K, Hasegawa, K, Hasegawa, Y, Iwasaki, Y, Suekane, F, Yuta, H, Gurd, DP, Oram, CJ, Bauer, D, Bean, A, Caldwell, DO, Dolin, R, Duboscq, J, Hale, D, Huber, J, Lu, A, Mathys, L, McHugh, S, Morrison, RJ, Richman, J, Wickert, SA, Witherell, MS, Yellin, SJ, Blaylock, G, Cavalli-Sforza, M, Coyle, PA, Coyne, DG, Liu, X, Schalk, T, Schneider, M, Seiden, A, Spencer, E, Bacchetta, N, Bisello, D, Castro, A, Loreti, M, Mazzucato, A, Pescara, L, Tecchio, M, Wyss, J, Battiston, R, Biasini, M, Bilei, GM, Mancinelli, G, Mantovani, GC, Pauluzzi, M, Servoli, L, Axen, DA, Bougerolle, S, Peters, D, Shypit, R, Sobie, R, Choi, K, D'Oliviera, A, Johnson, RA, Martinez, J, Meadows, BT, Nussbaum, M, Rutz, E, Santha, AKS, Shoup, A, Sokoloff, M, Stockdale, IE, Alber, C, Baranko, G, Carr, J, Durrett, DD, Erdos, E, Fan, C, Krishna, NM, Lauber, J, Nauenberg, U, Rankin, P, Schultz, G, Abt, I, Blockus, D, Downing, R, Eisenstein, B, Fortune, KM, Gladding, G, Haney, M, Izen, J, Karliner, I, Majid, W, McGowan, J, Mellor, D, Stewart, G, Thaler, J, Belcinski, R, Hertzbach, S, Kofler, R, Strauss, MG, Brau, J, Frey, R, Furuno, K, Hwang, H, Park, H, Pitts, KT, Zeitlin, C, Berridge, S, Bugg, WM, Cohn, HO, Du, P, Handler, T, Hart, EL, Kroeger, R S, Weidemann, A, White, SL, Astbury, A, Beer, GA, Hodges, T, Honma, A, Keeler, R, Langstaff, R, Mason, GR, Poffenberger, PR, Robertson, LP, Schenk, PR, Turcotte, M, Burnett, T, Cook, V, Forbush, D, Harrison, J, Kim, HY, Ma, J, Mockett, PM, Rothberg, JE, Szumilo, A, Toevs, F, Vella, E, Williams, RW, Young, KK, Band, H, Johnson, JR, Prepost, R, Zapalac, G, Chen, L, Panvini, R, Reeves, TW, Venuti, JP, Baltay, C, Ben-David, R, Disco, A, Emmet, WT, Manly, S, Snyder, JA, and Turk, J

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