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1. Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Bargemann, J. W., Barillier, E. E., Bauer, D., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chin, Y. T., Chott, N. I., Converse, M. V., Coronel, R., Cottle, A., Cox, G., Curran, D., Dahl, C. E., Darlington, I., Dave, S., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Di Felice, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Dubey, S., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fieldhouse, N., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Ghosh, A., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Haiston, J. J., Hall, C. R., Hall, T. J., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., K., Meghna K., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kim, Y. D., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Lawes, C., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Lippincott, W. H., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., McLaughlin, J. B., McMonigle, R., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., O'Brien, C. L., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Oyulmaz, K. Y, Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Ritchey, E., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Sehr, G., Shafer, B., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Usón, A., Vacheret, A., Vaitkus, A. C., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Weeldreyer, L., Whitis, T. J., Wild, K., Williams, M., Wisniewski, W. J., Wolf, L., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xu, J., Xu, Y., Yeh, M., Yeum, D., Zha, W., and Zweig, E. A.

Subjects
High Energy Physics - Experiment
Abstract

We report results of a search for nuclear recoils induced by weakly interacting massive particle (WIMP) dark matter using the LUX-ZEPLIN (LZ) two-phase xenon time projection chamber. This analysis uses a total exposure of $4.2\pm0.1$ tonne-years from 280 live days of LZ operation, of which $3.3\pm0.1$ tonne-years and 220 live days are new. A technique to actively tag background electronic recoils from $^{214}$Pb $\beta$ decays is featured for the first time. Enhanced electron-ion recombination is observed in two-neutrino double electron capture decays of $^{124}$Xe, representing a noteworthy new background. After removal of artificial signal-like events injected into the data set to mitigate analyzer bias, we find no evidence for an excess over expected backgrounds. World-leading constraints are placed on spin-independent (SI) and spin-dependent WIMP-nucleon cross sections for masses $\geq$9 GeV/$c^2$. The strongest SI exclusion set is $2.1\times10^{-48}$ cm$^{2}$ at the 90% confidence level at a mass of 36 GeV/$c^2$, and the best SI median sensitivity achieved is $5.0\times10^{-48}$ cm$^{2}$ for a mass of 40 GeV/$c^2$.

Published
2024

2. Two-neutrino double electron capture of $^{124}$Xe in the first LUX-ZEPLIN exposure

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Bargemann, J. W., Barillier, E. E., Beattie, K., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Chin, Y. T., Chott, N. I., Converse, M. V., Coronel, R., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Di Felice, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Dubey, S., Eriksen, S. R., Fan, A., Fearon, N. M., Fieldhouse, N., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Haiston, J. J., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kannichankandy, M., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kim, Y. D., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Lippincott, W. H., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., McLaughlin, J. B., McMonigle, R., Mizrachi, E., Monte, A., Monzani, M. E., Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., O'Brien, C. L., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Oyulmaz, K. Y, Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Ritchey, E., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Sehr, G., Shafer, B., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Vacheret, A., Vaitkus, A. C., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Weeldreyer, L., Whitis, T. J., Wild, K., Williams, M., Wisniewski, W. J., Wolf, L., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xu, J., Xu, Y., Yeh, M., Yeum, D., Zha, W., and Zweig, E. A.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

The broad physics reach of the LUX-ZEPLIN (LZ) experiment covers rare phenomena beyond the direct detection of dark matter. We report precise measurements of the extremely rare decay of $^{124}$Xe through the process of two-neutrino double electron capture (2$\nu$2EC), utilizing a $1.39\,\mathrm{kg} \times \mathrm{yr}$ isotopic exposure from the first LZ science run. A half-life of $T_{1/2}^{2\nu2\mathrm{EC}} = (1.09 \pm 0.14_{\text{stat}} \pm 0.05_{\text{sys}}) \times 10^{22}\,\mathrm{yr}$ is observed with a statistical significance of $8.3\,\sigma$, in agreement with literature. First empirical measurements of the KK capture fraction relative to other K-shell modes were conducted, and demonstrate consistency with respect to recent signal models at the $1.4\,\sigma$ level., Comment: 15 pages, 3 figures

Published
2024

3. The DAMA/LIBRA signal: an induced modulation effect?

Author

James, R. S., Rule, K., Barberio, E., Bashu, V. U., Bignell, L. J., Bolognino, I., Brooks, G., Chhun, S. S., Dastgiri, F., Duffy, A. R., Froehlich, M., Fruth, T. M. A., Fu, G., Hill, G. C., Janssens, K., Kapoor, S., Lane, G. J., Leaver, K. T., McGee, P., McKie, L. J., McNamara, P. C., McKenzie, J., Melbourne, W. J. D., Mews, M., Milligan, L. J., Mould, J., Nuti, F., Scutti, F., Slavkovska, Z., Spinks, N. J., Stanley, O., Stuchbery, A. E., Suerfu, B., Taylor, G. N., Urquijo, P., Williams, A. G., Xing, Y., Zhong, Y. Y., and Zurowski, M. J.

Subjects
High Energy Physics - Experiment
Abstract

The persistence of the DAMA/LIBRA (DAMA) modulation over the past two decades has been a source of great contention within the dark matter community. The DAMA collaboration reports a persistent, modulating event rate within their setup of NaI(Tl) scintillating crystals at the INFN Laboratori Nazionali del Gran Sasso (LNGS) underground laboratory. A recent work alluded that this signal could have arisen due to an analysis artefact, caused by DAMA not accounting for time variation of decaying background radioisotopes in their analysis procedure. In this work, we examine in detail this 'induced modulation' effect, arguing that a number of aspects of the DAMA signal are incompatible with an induced modulation arising from decays of background isotopes over the lifetime of the experiment. Using a toy model of the DAMA/LIBRA experiment, we explore the induced modulation effect under different variations of the activities of the relevant isotopes - namely, $^3$H and $^{210}$Pb - highlighting the various inconsistencies between the resultant toy datasets and the DAMA signal. We stress the importance of the SABRE experiment, whose goal is to unambiguously test for the presence of such a modulating signal in an experiment using the same target material and comparable levels of background.

Published
2024

4. Probing the Scalar WIMP-Pion Coupling with the first LUX-ZEPLIN data

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Barillier, E. E., Bargemann, J. W., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chin, Y. T., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., deViveiros, L., DiFelice, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., vanderGrinten, M. G. D., Haiston, J. J., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kannichankandy, M., Khaitan, D., Khazov, A., Khurana, I., DKim, J., Kim, J., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., McLaughlin, J. B., McMonigle, R., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Vacheret, A., Vaitkus, A. C., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Zweig, E. A.

Subjects
High Energy Physics - Experiment
Abstract

Weakly interacting massive particles (WIMPs) may interact with a virtual pion that is exchanged between nucleons. This interaction channel is important to consider in models where the spin-independent isoscalar channel is suppressed. Using data from the first science run of the LUX-ZEPLIN dark matter experiment, containing 60 live days of data in a 5.5~tonne fiducial mass of liquid xenon, we report the results on a search for WIMP-pion interactions. We observe no significant excess and set an upper limit of $1.5\times10^{-46}$~cm$^2$ at a 90\% confidence level for a WIMP mass of 33~GeV/c$^2$ for this interaction.

Published
2024
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5. The Data Acquisition System of the LZ Dark Matter Detector: FADR

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Barillier, E. E., Bargemann, J. W., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Buckley, J. H., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chin, Y. T., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Di Felice, L., Dimino, T., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fieldhouse, N., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Gelfand, R., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Haiston, J. J., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kannichankandy, M., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kim, Y. D., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Koyuncu, M., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Loniewski, C., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., Mclaughlin, J. B., McMonigle, R., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Moongweluwan, M., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Oh, H., Olcina, I., Olevitch, M. A., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sarkis, R., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Skulski, W., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Vacheret, A., Vaitkus, A. C., Vaitkus, J., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Wolfs, J. D., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Yin, J.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The Data Acquisition System (DAQ) for the LUX-ZEPLIN (LZ) dark matter detector is described. The signals from 745 PMTs, distributed across three subsystems, are sampled with 100-MHz 32-channel digitizers (DDC-32s). A basic waveform analysis is carried out on the on-board Field Programmable Gate Arrays (FPGAs) to extract information about the observed scintillation and electroluminescence signals. This information is used to determine if the digitized waveforms should be preserved for offline analysis. The system is designed around the Kintex-7 FPGA. In addition to digitizing the PMT signals and providing basic event selection in real time, the flexibility provided by the use of FPGAs allows us to monitor the performance of the detector and the DAQ in parallel to normal data acquisition. The hardware and software/firmware of this FPGA-based Architecture for Data acquisition and Realtime monitoring (FADR) are discussed and performance measurements are described., Comment: 18 pages, 24 figures

Published
2024

6. The Design, Implementation, and Performance of the LZ Calibration Systems

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Barillier, E. E., Bargemann, J. W., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chin, Y. T., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Di Felice, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fieldhouse, N., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Haiston, J. J., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kannichankandy, M., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kim, Y. D., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., Mclaughlin, J. B., McMonigle, R., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Vacheret, A., Vaitkus, A. C., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., and Yeh, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

LUX-ZEPLIN (LZ) is a tonne-scale experiment searching for direct dark matter interactions and other rare events. It is located at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. The core of the LZ detector is a dual-phase xenon time projection chamber (TPC), designed with the primary goal of detecting Weakly Interacting Massive Particles (WIMPs) via their induced low energy nuclear recoils. Surrounding the TPC, two veto detectors immersed in an ultra-pure water tank enable reducing background events to enhance the discovery potential. Intricate calibration systems are purposely designed to precisely understand the responses of these three detector volumes to various types of particle interactions and to demonstrate LZ's ability to discriminate between signals and backgrounds. In this paper, we present a comprehensive discussion of the key features, requirements, and performance of the LZ calibration systems, which play a crucial role in enabling LZ's WIMP-search and its broad science program. The thorough description of these calibration systems, with an emphasis on their novel aspects, is valuable for future calibration efforts in direct dark matter and other rare-event search experiments.

Published
2024
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7. Probing the scalar WIMP-pion coupling with the first LUX-ZEPLIN data

Author

Zweig, EA, Yeh, M, Xu, J, Xiang, X, Xia, Q, Wright, CJ, Woodward, D, Woodford, S, Wolfs, FLH, Wisniewski, WJ, Williams, M, Whitis, TJ, Weeldreyer, L, Webb, RC, Watson, JR, Wang, Y, Wang, JJ, Wang, A, Velan, V, Valentino, O, Vaitkus, AC, Vacheret, A, Tronstad, DR, Tripathi, M, Trask, M, Tranter, J, Tovey, DR, Tong, Z, Timalsina, M, Tiedt, DR, Taylor, WC, Szydagis, M, Sumner, TJ, Suerfu, B, Stifter, K, Stevens, A, Stancu, I, Soria, J, Sorensen, P, Solovov, VN, Smith, R, Siniscalco, J, Sinev, G, Silva, C, Silk, JJ, Shutt, T, Shaw, S, Schnee, RW, Sazzad, ABMR, Santone, D, Rynders, D, Rushton, T, Rosero, R, Riyat, HS, Rischbieter, GRC, Riffard, Q, Rhyne, CA, Reichenbacher, J, Qie, Y, Piepke, A, Pershing, T, Perry, E, Pereira, G, Penning, B, Patton, SJ, Parveen, N, Pannifer, NJ, Palmer, J, Palladino, KJ, Orpwood, J, Oliver-Mallory, KC, Olcina, I, Nikoleyczik, JA, Nguyen, A, Neves, F, Nelson, HN, Naylor, A, Murphy, ASJ, Murdy, M, Mount, BJ, Morrison, E, Morales Mendoza, JD, Monzani, ME, Monte, A, Mizrachi, E, Miller, EH, McMonigle, R, McLaughlin, JB, McLaughlin, J, McKinsey, DN, McDowell, G, McCarthy, ME, Maupin, C, Mannino, RL, Manalaysay, A, Majewski, PA, Luitz, S, Lu, C, Lorenzon, W, and Lopes, MI

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Engineering, Mathematical sciences, Physical sciences
Abstract

Weakly interacting massive particles (WIMPs) may interact with a virtual pion that is exchanged between nucleons. This interaction channel is important to consider in models where the spin-independent isoscalar channel is suppressed. Using data from the first science run of the LUX-ZEPLIN dark matter experiment, containing 60 live days of data in a 5.5 tonne fiducial mass of liquid xenon, we report the results on a search for WIMP-pion interactions. We observe no significant excess and set an upper limit of 1.5 × 10−46 cm2 at a 90% confidence level for a WIMP mass of 33 GeV/c2 for this interaction.

Published
2024

8. Constraints On Covariant WIMP-Nucleon Effective Field Theory Interactions from the First Science Run of the LUX-ZEPLIN Experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Barillier, E. E., Bargemann, J. W., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chin, Y. T., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Di Felice, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Haiston, J. H., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hernandez, M. A., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kannichankandy, M., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Lopes, M. I., Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., McLaughlin, J. B., McMonigle, R., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Siniscalco, J., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Vacheret, A., Vaitkus, A. C., Valentino, O., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Zweig, E. A.

Subjects
High Energy Physics - Experiment
Abstract

The first science run of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time project chamber operating in the Sanford Underground Research Facility in South Dakota, USA, has reported leading limits on spin-independent WIMP-nucleon interactions and interactions described from a non-relativistic effective field theory (NREFT). Using the same 5.5~t fiducial mass and 60 live days of exposure we report on the results of a relativistic extension to the NREFT. We present constraints on couplings from covariant interactions arising from the coupling of vector, axial currents, and electric dipole moments of the nucleon to the magnetic and electric dipole moments of the WIMP which cannot be described by recasting previous results described by an NREFT. Using a profile-likelihood ratio analysis, in an energy region between 0~keV$_\text{nr}$ to 270~keV$_\text{nr}$, we report 90% confidence level exclusion limits on the coupling strength of five interactions in both the isoscalar and isovector bases., Comment: 7 pages, 4 figures

Published
2024

9. New constraints on ultraheavy dark matter from the LZ experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Bargemann, J. W., Baxter, A., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Lopes, M. I., Asamar, E. Lopez, Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., McMonigle, R., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N. J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Vacheret, A., Vaitkus, A. C., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Zweig, E. A.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of the parameter space that is characteristic of weakly interacting massive particles, ranging from a few GeV/$c^2$ to a few TeV/$c^2$. Models of dark matter with a mass much heavier than this are well motivated by early production mechanisms different from the standard thermal freeze-out, but they have generally been less explored experimentally. In this work, we present a re-analysis of the first science run (SR1) of the LZ experiment, with an exposure of $0.9$ tonne$\times$year, to search for ultraheavy particle dark matter. The signal topology consists of multiple energy deposits in the active region of the detector forming a straight line, from which the velocity of the incoming particle can be reconstructed on an event-by-event basis. Zero events with this topology were observed after applying the data selection calibrated on a simulated sample of signal-like events. New experimental constraints are derived, which rule out previously unexplored regions of the dark matter parameter space of spin-independent interactions beyond a mass of 10$^{17}$ GeV/$c^2$., Comment: 9 pages, 7 figures

Published
2024
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10. First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN

Author

LZ Collaboration, Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Bargemann, J. W., Baxter, A., Beattie, K., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Bishop, E., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Carter, M., Chawla, A., Chen, H., Cherwinka, J. J., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hertel, S. A., Heuermann, G., Homenides, G. J., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacquet, E., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Lopes, M. I., Asamar, E. Lopez, Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Pannifer, N., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Vacheret, A., Vaitkus, A. C., Velan, V., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Zweig, E. A.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Following the first science results of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time projection chamber operating from the Sanford Underground Research Facility in Lead, South Dakota, USA, we report the initial limits on a model-independent non-relativistic effective field theory describing the complete set of possible interactions of a weakly interacting massive particle (WIMP) with a nucleon. These results utilize the same 5.5 t fiducial mass and 60 live days of exposure collected for the LZ spin-independent and spin-dependent analyses while extending the upper limit of the energy region of interest by a factor of 7.5 to 270 keVnr. No significant excess in this high energy region is observed. Using a profile-likelihood ratio analysis, we report 90% confidence level exclusion limits on the coupling of each individual non-relativistic WIMP-nucleon operator for both elastic and inelastic interactions in the isoscalar and isovector bases., Comment: 17 pages 11 figures

Published
2023
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11. A search for new physics in low-energy electron recoils from the first LZ exposure

Author

The LZ Collaboration, Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Balashov, S., Bang, J., Bargemann, J. W., Baxter, A., Beattie, K., Beltrame, P., Benson, T., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Carmona-Benitez, M. C., Chan, C., Chawla, A., Chen, H., Cherwinka, J. J., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Curran, D., Dahl, C. E., David, A., Delgaudio, J., Dey, S., de Viveiros, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T. M. A., Gaitskell, R. J., Geffre, A., Genovesi, J., Ghag, C., Gibbons, R., Gokhale, S., Green, J., van der Grinten, M. G. D., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Huang, D. Q., Hertel, S. A., Heuermann, G., Horn, M., Hunt, D., Ignarra, C. M., Jahangir, O., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Khaitan, D., Khazov, A., Khurana, I., Kim, J., Kingston, J., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Lorenzon, W., Lu, C., Lucero, D., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Maupin, C., McCarthy, M. E., McDowell, G., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Poudel, S., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rushton, T., Rynders, D., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Szydagis, M., Taylor, W. C., Temples, D. J., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Vacheret, A., Vaitkus, A. C., Wang, A., Wang, J. J., Wang, Y., Watson, J. R., Webb, R. C., Weeldreyer, L., Whitis, T. J., Williams, M., Wisniewski, W. J., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., Yeh, M., and Zweig, E. A.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on a dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale electron recoils, using the experiment's first exposure of 60 live days and a fiducial mass of 5.5t. The data are found to be consistent with a background-only hypothesis, and limits are set on models for new physics including solar axion electron coupling, solar neutrino magnetic moment and millicharge, and electron couplings to galactic axion-like particles and hidden photons. Similar limits are set on weakly interacting massive particle (WIMP) dark matter producing signals through ionized atomic states from the Migdal effect., Comment: 13 pages, 10 figures. See https://tinyurl.com/LZDataReleaseRun1ER for a data release related to this paper

Published
2023
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12. Applying Superfluid Helium to Light Dark Matter Searches: Demonstration of the HeRALD Detector Concept

Author

Anthony-Petersen, R., Biekert, A., Chang, C. L., Chang, Y., Chaplinsky, L., Dushkin, A., Fink, C. W., Garcia-Sciveres, M., Guo, W., Hertel, S. A., Li, X., Lin, J., Mahapatra, R., Matava, W., McKinsey, D. N., Osterman, D. Z., Patel, P. K., Penning, B., Pinckney, H. D., Platt, M., Pyle, M., Qi, Y., Reed, M., Rischbieter, G. R. C, Romani, R. K., Serafin, A., Serfass, B., Smith, R. J., Sorensen, P., Suerfu, B., Suzuki, A., Velan, V., Wang, G., Wang, Y., Watkins, S. L., and Williams, M. R.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The SPICE/HeRALD collaboration is performing R&D to enable studies of sub-GeV dark matter models using a variety of target materials. Here we report our recent progress on instrumenting a superfluid $^4$He target mass with a transition-edge sensor based calorimeter to detect both atomic signals (e.g. scintillation) and $^4$He quasiparticle (phonon and roton) excitations. The sensitivity of HeRALD to the critical "quantum evaporation" signal from $^4$He quasiparticles requires us to block the superfluid film flow to the calorimeter. We have developed a heat-free film-blocking method employing an unoxidized Cs film, which we implemented in a prototype "HeRALD v0.1" detector of $\sim$10~g target mass. This article reports initial studies of the atomic and quasiparticle signal channels. A key result of this work is the measurement of the quantum evaporation channel's gain of $0.15 \pm 0.012$, which will enable $^4$He-based dark matter experiments in the near term. With this gain the HeRALD detector reported here has an energy threshold of 145~eV at 5 sigma, which would be sensitive to dark matter masses down to 220~MeV/c$^2$., Comment: 14 pages, 9 figures

Published
2023

13. A portable and high intensity 24 keV neutron source based on $^{124}$Sb-$^{9}$Be photoneutrons and an iron filter

Author

Biekert, A., Chang, C., Chaplinsky, L., Fink, C. W., Frey, W. D., Garcia-Sciveres, M., Guo, W., Hertel, S. A., Li, X., Lin, J., Lisovenko, M., Mahapatra, R., McKinsey, D. N., Mehrotra, S., Mirabolfathi, N., Patel, P. K., Penning, B., Pinckney, H. D., Reed, M., Romani, R. K., Sadoulet, B., Smith, R. J., Sorensen, P., Suerfu, B., Suzuki, A., Velan, V., Wang, G., Wang, Y., Watkins, S. L., and Williams, M. R.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

A portable monoenergetic 24 keV neutron source based on the $^{124}$Sb-$^9$Be photoneutron reaction and an iron filter has been constructed and characterized. The coincidence of the neutron energy from SbBe and the low interaction cross-section with iron (mean free path up to 29 cm) makes pure iron specially suited to shield against gamma rays from $^{124}$Sb decays while letting through the neutrons. To increase the $^{124}$Sb activity and thus the neutron flux, a $>$1 GBq $^{124}$Sb source was produced by irradiating a natural Sb metal pellet with a high flux of thermal neutrons in a nuclear reactor. The design of the source shielding structure makes for easy transportation and deployment. A hydrogen gas proportional counter is used to characterize the neutrons emitted by the source and a NaI detector is used for gamma background characterization. At the exit opening of the neutron beam, the characterization determined the neutron flux in the energy range 20-25 keV to be 5.36$\pm$0.20 neutrons per cm$^2$ per second and the total gamma flux to be 213$\pm$6 gammas per cm$^2$ per second (numbers scaled to 1 GBq activity of the $^{124}$Sb source). A liquid scintillator detector is demonstrated to be sensitive to neutrons with incident kinetic energies from 8 to 17 keV, so it can be paired with the source as a backing detector for neutron scattering calibration experiments. This photoneutron source provides a good tool for in-situ low energy nuclear recoil calibration for dark matter experiments and coherent elastic neutrino-nucleus scattering experiments., Comment: 11 pages, 20 figures

Published
2023
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14. A portable and monoenergetic 24 keV neutron source based on 124Sb-9Be photoneutrons and an iron filter

Author

Biekert, A, Chang, C, Chaplinsky, L, Fink, CW, Frey, WD, Garcia-Sciveres, M, Guo, W, Hertel, SA, Li, X, Lin, J, Lisovenko, M, Mahapatra, R, McKinsey, DN, Mehrotra, S, Mirabolfathi, N, Patel, PK, Penning, B, Pinckney, HD, Reed, M, Romani, RK, Sadoulet, B, Smith, RJ, Sorensen, P, Suerfu, B, Suzuki, A, Velan, V, Wang, G, Wang, Y, Watkins, SL, Williams, MR, and collaboration, The SPICE HeRALD

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Affordable and Clean Energy, Dark Matter detectors, Detector alignment and calibration methods, Engineering, Nuclear & Particles Physics, Physical sciences
Abstract

A portable monoenergetic 24 keV neutron source based on the 124Sb-9Be photoneutron reaction and an iron filter has been constructed and characterized. The coincidence of the neutron energy from SbBe and the low interaction cross-section with iron (mean free path up to 29 cm) makes pure iron specially suited to shield against gamma rays from 124Sb decays while letting through the neutrons. To increase the 124Sb activity and thus the neutron flux, a >1 GBq 124Sb source was produced by irradiating a natural Sb metal pellet with a high flux of thermal neutrons in a nuclear reactor. The design of the source shielding structure makes for easy transportation and deployment. A hydrogen gas proportional counter is used to characterize the neutrons emitted by the source and a NaI detector is used for gamma background characterization. At the exit opening of the neutron beam, the characterization determined the neutron flux in the energy range 20-25 keV to be 6.00±0.30 neutrons per cm2 per second and the total gamma flux to be 245±8 gammas per cm2 per second (numbers scaled to 1 GBq activity of the 124Sb source). A liquid scintillator detector is demonstrated to be sensitive to neutrons with incident kinetic energies from 8 to 17 keV, so it can be paired with the source as a backing detector for neutron scattering calibration experiments. This photoneutron source provides a good tool for in-situ low energy nuclear recoil calibration for dark matter experiments and coherent elastic neutrino-nucleus scattering experiments.

Published
2023

15. Background Determination for the LUX-ZEPLIN (LZ) Dark Matter Experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Bang, J., Bargemann, J. W., Baxter, A., Beattie, K., Beltrame, P., Bernard, E. P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Chan, C., Chawla, A., Chen, H., Chiang, A. P. S., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Dahl, C. E., David, A., Dey, S., de Viveiros, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibbons, R., Gilchriese, M. G. D., Gokhale, S., Green, J., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Han, S., Hartigan-O'Connor, E., Haselschwardt, S. J., Hertel, S. A., Heuermann, G., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacobsen, R. G., Jahangir, O., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Khaitan, D., Khurana, I., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Paredes, B. López, Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Porzio, D., Poudel, S., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rossiter, P., Rushton, T., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, R., Taylor, W. C., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A. C., Wang, A., Wang, J. J., Wang, W., Wang, Y., Watson, J. R., Webb, R. C., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., and Yeh, M.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to $9.2\times10^{-48}$ cm$^2$ for the spin-independent interaction of a 36 GeV/c$^2$ WIMP at 90% confidence level. In this paper, we present a comprehensive analysis of the backgrounds important for this result and for other upcoming physics analyses, including neutrinoless double-beta decay searches and effective field theory interpretations of LUX-ZEPLIN data. We confirm that the in-situ determinations of bulk and fixed radioactive backgrounds are consistent with expectations from the ex-situ assays. The observed background rate after WIMP search criteria were applied was $(6.3\pm0.5)\times10^{-5}$ events/keV$_{ee}$/kg/day in the low-energy region, approximately 60 times lower than the equivalent rate reported by the LUX experiment., Comment: 25 pages, 15 figures

Published
2022
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16. Status and prospects of SABRE North

Author

Mariani, A., Benziger, J. B., Calaprice, F., Copello, S., Dafinei, I., D'Angelo, D., D'Imperio, G., Di Carlo, G., Diemoz, M., Di Giacinto, A., Di Ludovico, A., Ianna, M., Ianni, A., Milana, S., Orlandi, D., Pettinacci, V., Pietrofaccia, L., Rahatlou, S., Suerfu, B., Tomei, C., Vignoli, C., and Zani, A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

We present the characterization of a low background NaI(Tl) crystal for the SABRE North experiment. The crystal NaI-33, was studied in two different setups at Laboratori Nazionali del Gran Sasso, Italy. The Proof-of-Principle (PoP) detector was equipped with a liquid scintillator veto and collected data for about one month (90 kg$\times$days). The PoP-dry setup consisted of NaI-33 in a purely passive shielding and collected data for almost one year (891 kg$\times$days). The average background in the energy region of interest (1-6 keV) for dark matter search was 1.20 $\pm$ 0.05 and 1.39 $\pm$ 0.02 counts/day/kg/keV within the PoP and the PoP-dry setup, respectively. This result opens to a new shielding design for the physics phase of the SABRE North detector, that does not foresee the use of an organic liquid scintillator external veto., Comment: 5 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:2205.13876

Published
2022

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

Author

Aalbers, J., Akerib, D. S., Akerlof, C. W., Musalhi, A. K. Al, Alder, F., Alqahtani, A., Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Azadi, S., Bailey, A. J., Baker, A., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Barry, M. J., Barthel, J., Bauer, D., Baxter, A., Beattie, K., Belle, J., Beltrame, P., Bensinger, J., Benson, T., Bernard, E. P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Birrittella, B., Blockinger, G. M., Boast, K. E., Boxer, B., Bramante, R., Brew, C. A. J., Brás, P., Buckley, J. H., Bugaev, V. V., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carels, C., Carlsmith, D. L., Carlson, B., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chawla, A., Chen, H., Cherwinka, J. J., Chott, N. I., Cole, A., Coleman, J., Converse, M. V., Cottle, A., Cox, G., Craddock, W. W., Creaner, O., Curran, D., Currie, A., Cutter, J. E., Dahl, C. E., David, A., Davis, J., Davison, T. J. R., Delgaudio, J., Dey, S., de Viveiros, L., Dobi, A., Dobson, J. E. Y., Druszkiewicz, E., Dushkin, A., Edberg, T. K., Edwards, W. R., Elnimr, M. M., Emmet, W. T., Eriksen, S. R., Faham, C. H., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Ford, P., Francis, V. B., Fraser, E. D., Fruth, T., Gaitskell, R. J., Gantos, N. J., Garcia, D., Geffre, A., Gehman, V. M., Genovesi, J., Ghag, C., Gibbons, R., Gibson, E., Gilchriese, M. G. D., Gokhale, S., Gomber, B., Green, J., Greenall, A., Greenwood, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Hans, S., Hanzel, K., Harrison, A., Hartigan-O'Connor, E., Haselschwardt, S. J., Hertel, S. A., Heuermann, G., Hjemfelt, C., Hoff, M. D., Holtom, E., Hor, J. Y-K., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacobsen, R. G., Jahangir, O., James, R. S., Jeffery, S. N., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Kasey, V., Kazkaz, K., Keefner, J., Khaitan, D., Khaleeq, M., Khazov, A., Khurana, I., Kim, Y. D., Kocher, C. D., Kodroff, D., Korley, L., Korolkova, E. V., Kras, J., Kraus, H., Kravitz, S., Krebs, H. J., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Kyre, S., Landerud, B., Leason, E. A., Lee, C., Lee, J., Leonard, D. S., Leonard, R., Lesko, K. T., Levy, C., Li, J., Liao, F. -T., Liao, J., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, R., Liu, X., Liu, Y., Loniewski, C., Lopes, M. I., Asamar, E. Lopez, Paredes, B. López, Lorenzon, W., Lucero, D., Luitz, S., Lyle, J. M., Majewski, P. A., Makkinje, J., Malling, D. C., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., Marzioni, M. F., Maupin, C., McCarthy, M. E., McConnell, C. T., McKinsey, D. N., McLaughlin, J., Meng, Y., Migneault, J., Miller, E. H., Mizrachi, E., Mock, J. A., Monte, A., Monzani, M. E., Morad, J. A., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nehrkorn, C., Neves, F., Nguyen, A., Nikoleyczik, J. A., Nilima, A., O'Dell, J., O'Neill, F. G., O'Sullivan, K., Olcina, I., Olevitch, M. A., Oliver-Mallory, K. C., Orpwood, J., Pagenkopf, D., Pal, S., Palladino, K. J., Palmer, J., Pangilinan, M., Parveen, N., Patton, S. J., Pease, E. K., Penning, B., Pereira, C., Pereira, G., Perry, E., Pershing, T., Peterson, I. B., Piepke, A., Podczerwinski, J., Porzio, D., Powell, S., Preece, R. M., Pushkin, K., Qie, Y., Ratcliff, B. N., Reichenbacher, J., Reichhart, L., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rodrigues, J. P., Rodriguez, A., Rose, H. J., Rosero, R., Rossiter, P., Rushton, T., Rutherford, G., Rynders, D., Saba, J. S., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Seymour, D., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Skarpaas, K., Skulski, W., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stark, M. R., Stevens, A., Stiegler, T. M., Stifter, K., Studley, R., Suerfu, B., Sumner, T. J., Sutcliffe, P., Swanson, N., Szydagis, M., Tan, M., Taylor, D. J., Taylor, R., Taylor, W. C., Temples, D. J., Tennyson, B. P., Terman, P. A., Thomas, K. J., Tiedt, D. R., Timalsina, M., To, W. H., Tomás, A., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Tull, C. E., Turner, W., Tvrznikova, L., Utku, U., Va'vra, J., Vacheret, A., Vaitkus, A. C., Verbus, J. R., Voirin, E., Waldron, W. L., Wang, A., Wang, B., Wang, J. J., Wang, W., Wang, Y., Watson, J. R., Webb, R. C., White, A., White, D. T., White, J. T., White, R. G., Whitis, T. J., Williams, M., Wisniewski, W. J., Witherell, M. S., Wolfs, F. L. H., Wolfs, J. D., Woodford, S., Woodward, D., Worm, S. D., Wright, C. J., Xia, Q., Xiang, X., Xiao, Q., Xu, J., Yeh, M., Yin, J., Young, I., Zarzhitsky, P., Zuckerman, A., and Zweig, E. A.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
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$\times 10^{-48}$ cm$^2$ at the 90% confidence level., Comment: 9 pages, 8 figures. See https://doi.org/10.1103/PhysRevLett.131.041002 for a data release related to this paper

Published
2022
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18. Performance of the SABRE detector module in a purely passive shielding

Author

Calaprice, F., Benziger, J. B., Copello, S., Dafinei, I., D'Angelo, D., D'Imperio, G., Di Carlo, G., Diemoz, M., Di Giacinto, A., Di Ludovico, A., Ianna, M., Ianni, A., Mariani, A., Milana, S., Orlandi, D., Pettinacci, V., Pietrofaccia, L., Rahatlou, S., Suerfu, B., Tomei, C., Vignoli, C., and Zani, A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

We present here a characterization of the low background NaI(Tl) crystal NaI-33 based on a period of almost one year of data taking (891 kgxdays exposure) in a detector configuration with no use of organic scintillator veto. This remarkably radio-pure crystal already showed a low background in the SABRE Proof-of-Principle (PoP) detector, in the low energy region of interest (1-6 keV) for the search of dark matter interaction via the annual modulation signature. As the vetoable background components, such as $^{40}$K, are here sub-dominant, we reassembled the PoP setup with a fully passive shielding. We upgraded the selection of events based on a Boosted Decision Tree algorithm that rejects most of the PMT-induced noise while retaining scintillation signals with > 90% efficiency in 1-6 keV. We find an average background of 1.39 $\pm$ 0.02 counts/day/kg/keV in the region of interest and a spectrum consistent with data previously acquired in the PoP setup, where the external veto background suppression was in place. Our background model indicates that the dominant background component is due to decays of $^{210}$Pb, only partly residing in the crystal itself. The other location of $^{210}$Pb is the reflector foil that wraps the crystal. We now proceed to design the experimental setup for the physics phase of the SABRE North detector, based on an array of similar crystals, using a low radioactivity PTFE reflector and further improving the passive shielding strategy, in compliance with the new safety and environmental requirements of Laboratori Nazionali del Gran Sasso., Comment: 8 pages, 9 figures

Published
2022
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19. A backing detector for order-keV neutrons

Author

Biekert, A., Chaplinsky, L., Fink, C. W., Garcia-Sciveres, M., Gillis, W. C., Guo, W., Hertel, S. A., Heuermann, G., Li, X., Lin, J., Mahapatra, R., McKinsey, D. N., Patel, P. K., Penning, B., Pinckney, H. D., Platt, M., Pyle, M., Romani, R. K., Serafin, A., Smith, R. J., Suerfu, B., Velan, V., Wang, G., Wang, Y., Watkins, S. L., and William, M. R.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

We have designed and tested a large-area (0.15~m$^2$) neutron detector based on neutron capture on \ce{^{6}Li}. The neutron detector design has been optimized for the purpose of tagging the scattering angle of keV-scale neutrons. These neutron detectors would be employed to calibrate the low-energy ($<$100 eV) nuclear recoil in detectors for dark matter and coherent elastic neutrino nucleus scattering (CE$\nu$NS). We describe the design, construction, and characterization of a prototype. The prototype is designed to have a tagging efficiency of $\sim$25\% at the relevant $\mathcal{O}$(keV) neutron energies, and with a mean capture time of $\sim$17$~\mu$s. The prototype was characterized using a \ce{^{252}Cf} neutron source and agreement with the simulation was observed within a few percent level., Comment: 25 pages, 14 figures, and 2 tables

Published
2022
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20. A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Author

Aalbers, J., Abe, K., Aerne, V., Agostini, F., Maouloud, S. Ahmed, Akerib, D. S., Akimov, D. Yu., Akshat, J., Musalhi, A. K. Al, Alder, F., Alsum, S. K., Althueser, L., Amarasinghe, C. S., Amaro, F. D., Ames, A., Anderson, T. J., Andrieu, B., Angelides, N., Angelino, E., Angevaare, J., Antochi, V. C., Martin, D. Antón, Antunovic, B., Aprile, E., Araújo, H. M., Armstrong, J. E., Arneodo, F., Arthurs, M., Asadi, P., Baek, S., Bai, X., Bajpai, D., Baker, A., Balajthy, J., Balashov, S., Balzer, M., Bandyopadhyay, A., Bang, J., Barberio, E., Bargemann, J. W., Baudis, L., Bauer, D., Baur, D., Baxter, A., Baxter, A. L., Bazyk, M., Beattie, K., Behrens, J., Bell, N. F., Bellagamba, L., Beltrame, P., Benabderrahmane, M., Bernard, E. P., Bertone, G. F., Bhattacharjee, P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Binau, A. R., Biondi, R., Biondi, Y., Birch, H. J., Bishara, F., Bismark, A., Blanco, C., Blockinger, G. M., Bodnia, E., Boehm, C., Bolozdynya, A. I., Bolton, P. D., Bottaro, S., Bourgeois, C., Boxer, B., Brás, P., Breskin, A., Breur, P. A., Brew, C. A. J., Brod, J., Brookes, E., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bui, T. K., Burdin, S., Buse, S., Busenitz, J. K., Buttazzo, D., Buuck, M., Buzulutskov, A., Cabrita, R., Cai, C., Cai, D., Capelli, C., Cardoso, J. M. R., Carmona-Benitez, M. C., Cascella, M., Catena, R., Chakraborty, S., Chan, C., Chang, S., Chauvin, A., Chawla, A., Chen, H., Chepel, V., Chott, N. I., Cichon, D., Chavez, A. Cimental, Cimmino, B., Clark, M., Co, R. T., Colijn, A. P., Conrad, J., Converse, M. V., Costa, M., Cottle, A., Cox, G., Creaner, O., Garcia, J. J. Cuenca, Cussonneau, J. P., Cutter, J. E., Dahl, C. E., D'Andrea, V., David, A., Decowski, M. P., Dent, J. B., Deppisch, F. F., de Viveiros, L., Di Gangi, P., Di Giovanni, A., Di Pede, S., Dierle, J., Diglio, S., Dobson, J. E. Y., Doerenkamp, M., Douillet, D., Drexlin, G., Druszkiewicz, E., Dunsky, D., Eitel, K., Elykov, A., Emken, T., Engel, R., Eriksen, S. R., Fairbairn, M., Fan, A., Fan, J. J., Farrell, S. J., Fayer, S., Fearon, N. M., Ferella, A., Ferrari, C., Fieguth, A., Fiorucci, S., Fischer, H., Flaecher, H., Flierman, M., Florek, T., Foot, R., Fox, P. J., Franceschini, R., Fraser, E. D., Frenk, C. S., Frohlich, S., Fruth, T., Fulgione, W., Fuselli, C., Gaemers, P., Gaior, R., Gaitskell, R. J., Galloway, M., Gao, F., Garcia, I. Garcia, Genovesi, J., Ghag, C., Ghosh, S., Gibson, E., Gil, W., Giovagnoli, D., Girard, F., Glade-Beucke, R., Glück, F., Gokhale, S., de Gouvêa, A., Gráf, L., Grandi, L., Grigat, J., Grinstein, B., van der Grinten, M. G. D., Grössle, R., Guan, H., Guida, M., Gumbsheimer, R., Gwilliam, C. B., Hall, C. R., Hall, L. J., Hammann, R., Han, K., Hannen, V., Hansmann-Menzemer, S., Harata, R., Hardin, S. P., Hardy, E., Hardy, C. A., Harigaya, K., Harnik, R., Haselschwardt, S. J., Hernandez, M., Hertel, S. A., Higuera, A., Hils, C., Hochrein, S., Hoetzsch, L., Hoferichter, M., Hood, N., Hooper, D., Horn, M., Howlett, J., Huang, D. Q., Huang, Y., Hunt, D., Iacovacci, M., Iaquaniello, G., Ide, R., Ignarra, C. M., Iloglu, G., Itow, Y., Jacquet, E., Jahangir, O., Jakob, J., James, R. S., Jansen, A., Ji, W., Ji, X., Joerg, F., Johnson, J., Joy, A., Kaboth, A. C., Kamaha, A. C., Kanezaki, K., Kar, K., Kara, M., Kato, N., Kavrigin, P., Kazama, S., Keaveney, A. W., Kellerer, J., Khaitan, D., Khazov, A., Khundzakishvili, G., Khurana, I., Kilminster, B., Kleifges, M., Ko, P., Kobayashi, M., Kodroff, D., Koltmann, G., Kopec, A., Kopmann, A., Kopp, J., Korley, L., Kornoukhov, V. N., Korolkova, E. V., Kraus, H., Krauss, L. M., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Kuger, F., Kumar, J., Paredes, B. López, LaCascio, L., Laine, Q., Landsman, H., Lang, R. F., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levinson, L., Levy, C., Li, I., Li, S. C., Li, T., Liang, S., Liebenthal, C. S., Lin, J., Lin, Q., Lindemann, S., Lindner, M., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Liu, K., Liu, J., Loizeau, J., Lombardi, F., Long, J., Lopes, M. I., Asamar, E. Lopez, Lorenzon, W., Lu, C., Luitz, S., Ma, Y., Machado, P. A. N., Macolino, C., Maeda, T., Mahlstedt, J., Majewski, P. A., Manalaysay, A., Mancuso, A., Manenti, L., Manfredini, A., Mannino, R. L., Marangou, N., March-Russell, J., Marignetti, F., Undagoitia, T. Marrodán, Martens, K., Martin, R., Martinez-Soler, I., Masbou, J., Masson, D., Masson, E., Mastroianni, S., Mastronardi, M., Matias-Lopes, J. A., McCarthy, M. E., McFadden, N., McGinness, E., McKinsey, D. N., McLaughlin, J., McMichael, K., Meinhardt, P., Menéndez, J., Meng, Y., Messina, M., Midha, R., Milisavljevic, D., Miller, E. H., Milosevic, B., Milutinovic, S., Mitra, S. A., Miuchi, K., Mizrachi, E., Mizukoshi, K., Molinario, A., Monte, A., Monteiro, C. M. B., Monzani, M. E., Moore, J. S., Morå, K., Morad, J. A., Mendoza, J. D. Morales, Moriyama, S., Morrison, E., Morteau, E., Mosbacher, Y., Mount, B. J., Mueller, J., Murphy, A. St. J., Murra, M., Naim, D., Nakamura, S., Nash, E., Navaieelavasani, N., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Newstead, J. L., Ni, K., Nikoleyczik, J. A., Niro, V., Oberlack, U. G., Obradovic, M., Odgers, K., O'Hare, C. A. J., Oikonomou, P., Olcina, I., Oliver-Mallory, K., Oranday, A., Orpwood, J., Ostrovskiy, I., Ozaki, K., Paetsch, B., Pal, S., Palacio, J., Palladino, K. J., Palmer, J., Panci, P., Pandurovic, M., Parlati, A., Parveen, N., Patton, S. J., Pěč, V., Pellegrini, Q., Penning, B., Pereira, G., Peres, R., Perez-Gonzalez, Y., Perry, E., Pershing, T., Petrossian-Byrne, R., Pienaar, J., Piepke, A., Pieramico, G., Pierre, M., Piotter, M., Pizella, V., Plante, G., Pollmann, T., Porzio, D., Qi, J., Qie, Y., Qin, J., Raj, N., Silva, M. Rajado, Ramanathan, K., García, D. Ramírez, Ravanis, J., Redard-Jacot, L., Redigolo, D., Reichard, S., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rocchetti, A., Rosenfeld, S. L., Rosero, R., Rupp, N., Rushton, T., Saha, S., Sanchez, L., Sanchez-Lucas, P., Santone, D., Santos, J. M. F. dos, Sarnoff, I., Sartorelli, G., Sazzad, A. B. M. R., Scheibelhut, M., Schnee, R. W., Schrank, M., Schreiner, J., Schulte, P., Schulte, D., Eissing, H. Schulze, Schumann, M., Schwemberger, T., Schwenk, A., Schwetz, T., Lavina, L. Scotto, Scovell, P. R., Sekiya, H., Selvi, M., Semenov, E., Semeria, F., Shagin, P., Shaw, S., Shi, S., Shockley, E., Shutt, T. A., Si-Ahmed, R., Silk, J. J., Silva, C., Silva, M. C., Simgen, H., Šimkovic, F., Sinev, G., Singh, R., Skulski, W., Smirnov, J., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Sparmann, T. J., Stancu, I., Steidl, M., Stevens, A., Stifter, K., Strigari, L. E., Subotic, D., Suerfu, B., Suliga, A. M., Sumner, T. J., Szabo, P., Szydagis, M., Takeda, A., Takeuchi, Y., Tan, P. -L., Taricco, C., Taylor, W. C., Temples, D. J., Terliuk, A., Terman, P. A., Thers, D., Thieme, K., Thümmler, Th., Tiedt, D. R., Timalsina, M., To, W. H., Toennies, F., Tong, Z., Toschi, F., Tovey, D. R., Tranter, J., Trask, M., Trinchero, G. C., Tripathi, M., Tronstad, D. R., Trotta, R., Tsai, Y. D., Tunnell, C. D., Turner, W. G., Ueno, R., Urquijo, P., Utku, U., Vaitkus, A., Valerius, K., Vassilev, E., Vecchi, S., Velan, V., Vetter, S., Vincent, A. C., Vittorio, L., Volta, G., von Krosigk, B., von Piechowski, M., Vorkapic, D., Wagner, C. E. M., Wang, A. M., Wang, B., Wang, Y., Wang, W., Wang, J. J., Wang, L. -T., Wang, M., Watson, J. R., Wei, Y., Weinheimer, C., Weisman, E., Weiss, M., Wenz, D., West, S. M., Whitis, T. J., Williams, M., Wilson, M. J., Winkler, D., Wittweg, C., Wolf, J., Wolf, T., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Wu, V. H. S., Wu, P., Wüstling, S., Wurm, M., Xia, Q., Xiang, X., Xing, Y., Xu, J., Xu, Z., Xu, D., Yamashita, M., Yamazaki, R., Yan, H., Yang, L., Yang, Y., Ye, J., Yeh, M., Young, I., Yu, H. B., Yu, T. T., Yuan, L., Zavattini, G., Zerbo, S., Zhang, Y., Zhong, M., Zhou, N., Zhou, X., Zhu, T., Zhu, Y., Zhuang, Y., Zopounidis, J. P., Zuber, K., and Zupan, J.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical sources. A next-generation xenon-based detector will therefore be a true multi-purpose observatory to significantly advance particle physics, nuclear physics, astrophysics, solar physics, and cosmology. This review article presents the science cases for such a detector., Comment: 77 pages, 40 figures, 1262 references

Published
2022
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21. A backing detector for order-keV neutrons

Author

Biekert, A, Chaplinsky, L, Fink, CW, Garcia-Sciveres, M, Gillis, WC, Guo, W, Hertel, SA, Heuermann, G, Li, X, Lin, J, Mahapatra, R, McKinsey, DN, Patel, PK, Penning, B, Pinckney, HD, Platt, M, Pyle, M, Romani, RK, Serafin, A, Smith, RJ, Suerfu, B, Velan, V, Wang, G, Wang, Y, Watkins, SL, and Williams, MR

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Neutrondetector, Darkmatter, Nuclearrecoilcalibration, (6)Liscintillator, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences, Nuclear & Particles Physics, Nuclear and plasma physics
Abstract

We have designed and tested a large-area (0.15 m2) neutron detector based on neutron capture on 6Li. The neutron detector design has been optimized for the purpose of tagging the scattering angle of keV-scale neutrons. These neutron detectors would be employed to calibrate the low-energy (

Published
2022

22. Cosmogenic production of $^{37}$Ar in the context of the LUX-ZEPLIN experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Bai, X., Baker, A., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Bauer, D., Baxter, A., Beattie, K., Bernard, E. P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Bodnia, E., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chawla, A., Chen, H., Chott, N. I., Cole, A., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Cutter, J. E., Dahl, C. E., David, A., de Viveiros, L., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibson, E., Gilchriese, M. G. D., Gokhale, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jahangir, O., James, R. S., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Khaitan, D., Khazov, A., Khurana, I., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leason, E. A., Leonard, D. S., Lesko, K. T., Levy, C., Lee, J., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Lopez-Paredes, B., Lorenzon, W., Luitz, S., Majewski, P. A., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Morad, J. A., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nikoleyczik, J. A., Nilima, A., Olcina, I., Oliver-Mallory, K., Pal, S., Palladino, K. J., Palmer, J., Parveen, N., Patton, S. J., Pease, E. K., Penning, B., Pereira, G., Perry, E., Pershing, J., Piepke, A., Porzio, D., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Riffard, %Q., Rischbieter, G. R. C., Rosero, R., Rossiter, P., Rushton, T., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Shaw, S., Shutt, T. A., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, W. C., Taylor, R., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., To, W. H., Tong, Z., Tovey, D. R., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A., Wang, B., Wang, Y., Wang, J. J., Wang, W., Watson, J. R., Webb, R. C., White, R. G., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., and Yeh, M.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Phenomenology
Abstract

We estimate the amount of $^{37}$Ar produced in natural xenon via cosmic ray-induced spallation, an inevitable consequence of the transportation and storage of xenon on the Earth's surface. We then calculate the resulting $^{37}$Ar concentration in a 10-tonne payload~(similar to that of the LUX-ZEPLIN experiment) assuming a representative schedule of xenon purification, storage and delivery to the underground facility. Using the spallation model by Silberberg and Tsao, the sea level production rate of $^{37}$Ar in natural xenon is estimated to be 0.024~atoms/kg/day. Assuming the xenon is successively purified to remove radioactive contaminants in 1-tonne batches at a rate of 1~tonne/month, the average $^{37}$Ar activity after 10~tonnes are purified and transported underground is 0.058--0.090~$\mu$Bq/kg, depending on the degree of argon removal during above-ground purification. Such cosmogenic $^{37}$Ar will appear as a noticeable background in the early science data, while decaying with a 35~day half-life. This newly-noticed production mechanism of $^{37}$Ar should be considered when planning for future liquid xenon-based experiments.

Published
2022
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23. Scintillation yield from electronic and nuclear recoils in superfluid He4

Author

Biekert, A, Chang, C, Fink, CW, Garcia-Sciveres, M, Glazer, EC, Guo, W, Hertel, SA, Kravitz, S, Lin, J, Lisovenko, M, Mahapatra, R, McKinsey, DN, Nguyen, JS, Novosad, V, Page, W, Patel, PK, Penning, B, Pinckney, HD, Pyle, M, Romani, RK, Seilnacht, AS, Serafin, A, Smith, RJ, Sorensen, P, Suerfu, B, Suzuki, A, Velan, V, Wang, G, Watkins, SL, Yefremenko, VG, Yuan, L, and Zhang, J

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences
Abstract

Superfluid He4 is a promising target material for direct detection of light (

Published
2022

24. Scintillation yield from electronic and nuclear recoils in superfluid $^4$He

Author

Collaboration, SPICE/HeRALD, Biekert, A., Chang, C., Fink, C. W., Garcia-Sciveres, M., Glazer, E. C., Guo, W., Hertel, S. A., Kravitz, S., Lin, J., Lisovenko, M., Mahapatra, R., McKinsey, D. N., Nguyen, J. S., Novosad, V., Page, W., Patel, P. K., Penning, B., Pinckney, H. D., Pyle, M., Romani, R. K., Seilnacht, A. S., Serafin, A., Smith, R. J., Sorensen, P., Suerfu, B., Suzuki, A., Velan, V., Wang, G., Watkins, S. L., Yefremenko, V. G., Yuan, L., and Zhang, J.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Superfluid $^4$He is a promising target material for direct detection of light ($<$ 1 GeV) dark matter. Possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. The relative yield of these signals has implications for the sensitivity and discrimination power of a superfluid $^4$He dark matter detector. Using a 16~cm$^3$ volume of 1.75~K superfluid $^4$He read out by six immersed photomultiplier tubes, we measured the scintillation from electronic recoils ranging between 36.3 and 185 keV$_\mathrm{ee}$, yielding a mean signal size of $1.25^{+0.03}_{-0.03}$~phe/keV$_\mathrm{ee}$, and nuclear recoils from 53.2 to 1090 keV$_\mathrm{nr}$. We compare the results of our relative scintillation yield measurements to an existing semiempirical model based on helium-helium and electron-helium interaction cross sections. We also study the behavior of delayed scintillation components as a function of recoil type and energy, a further avenue for signal discrimination in superfluid $^4$He., Comment: 17 pages, 19 figures

Published
2021
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25. High sensitivity characterization of an ultra-high purity NaI(Tl) crystal scintillator with the SABRE proof-of-principle detector

Author

Calaprice, F., Copello, S., Dafinei, I., D'Angelo, D., D'Imperio, G., Di Carlo, G., Diemoz, M., Di Giacinto, A., Di Ludovico, A., Ianni, A., Iannone, M., Marchegiani, F., Mariani, A., Milana, S., Nisi, S., Nuti, F., Orlandi, D., Pettinacci, V., Pietrofaccia, L., Rahatlou, S., Souza, M., Suerfu, B., Tomei, C., Vignoli, C., Wada, M., and Zani, A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

We present new results on the radiopurity of a 3.4-kg NaI(Tl) crystal scintillator operated in the SABRE proof-of-principle detector setup. The amount of potassium contamination, determined by the direct counting of radioactive $^{40}$K, is found to be $2.2\pm1.5$ ppb, lowest ever achieved for NaI(Tl) crystals. With the active veto, the average background rate in the crystal in the 1-6 keV energy region-of-interest (ROI) is $1.20\pm0.05$ counts/day/kg/keV, which is a breakthrough since the DAMA/LIBRA experiment. Our background model indicates that the rate is dominated by $^{210}$Pb and that about half of this contamination is located in the PTFE reflector. We discuss ongoing developments of the crystal manufacture aimed at the further reduction of the background, including data from purification by zone refining. A projected background rate lower than $\sim$0.2 counts/day/kg/keV in the ROI is within reach. These results represent a benchmark for the development of next-generation NaI(Tl) detector arrays for the direct detection of dark matter particles.

Published
2021
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26. Projected sensitivity of the LUX-ZEPLIN (LZ) experiment to the two-neutrino and neutrinoless double beta decays of $^{134}$Xe

Author

LUX-ZEPLIN, The, Collaboration, Akerib, D. S., Musalhi, A. K. Al, Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araujo, H. M., Armstrong, J. E., Arthurs, M., Bai, X., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Bauer, D., Baxter, A., Beltrame, P., Bernard, E. P., Bernstein, A., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Bodnia, E., Boxer, B., Brew, C. A. J., Bras, P., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chott, N. I., Cole, A., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Cutter, J. E., Dahl, C. E., de Viveiros, L., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibson, E., Gokhale, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Horn, M., Huang, D. Q., Ignarra, C. M., Jahangir, O., James, R. S., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Kazkaz, K., Khaitan, D., Khazov, A., Khurana, I., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Liao, J., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Paredes, B. Lopez, Lorenzon, W., Luitz, S., Majewski, P. A., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Morad, J. A., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nikoleyczik, J. A., Nilima, A., Olcina, I., Oliver-Mallory, K. C., Pal, S., Palladino, K. J., Palmer, J., Patton, S., Parveen, N., Pease, E. K., Penning, B., Pereira, G., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rosero, R., Rossiter, P., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Shaw, S., Shutt, T. A., Silk, J. J., Silva, C., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, W. C., Taylor, R., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., To, W. H., Tovey, D. R., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A., Wang, B., Wang, J. J., Wang, W., Watson, J. R., Webb, R. C., White, R. G., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodward, D., Wright, C. J., Xiang, X., Xu, J., Yeh, M., and Zarzhitsky, P.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double beta decay of $^{134}$Xe is presented. LZ is a 10-tonne xenon time projection chamber optimized for the detection of dark matter particles, that is expected to start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass of natural xenon provides an exceptional opportunity to search for the double beta decay of $^{134}$Xe, for which xenon detectors enriched in $^{136}$Xe are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to 1.7$\times$10$^{24}$ years at 90% confidence level (CL), and has a three-sigma observation potential of 8.7$\times$10$^{23}$ years, approaching the predictions of nuclear models. For the neutrinoless decay mode LZ, is projected to exclude values of the half-life up to 7.3$\times$10$^{24}$ years at 90% CL., Comment: Version accepted for publication in Phys. Rev. C

Published
2021
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27. Projected sensitivities of the LUX-ZEPLIN (LZ) experiment to new physics via low-energy electron recoils

Author

The LZ Collaboration, Akerib, D. S., Musalhi, A. K. Al, Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Bai, X., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Bauer, D., Baxter, A., Beltrame, P., Bernard, E. P., Bernstein, A., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Bodnia, E., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chott, N. I., Cole, A., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Cutter, J. E., Dahl, C. E., de Viveiros, L., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibson, E., Gokhale, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Hardy, C. A., Haselschwardt, S. J., Hertel, S. A., Horn, M., Huang, D. Q., Ignarra, C. M., Jahangir, O., James, R. S., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Kazkaz, K., Khaitan, D., Khazov, A., Khurana, I., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Li, J., Liao, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Paredes, B. López, Lorenzon, W., Luitz, S., Majewski, P. A., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Morad, J. A., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nikoleyczik, J. A., Nilima, A., Nguyen, A., Olcina, I., Oliver-Mallory, K. C., Pal, S., Palladino, K. J., Palmer, J., Patton, S., Parveen, N., Pease, E. K., Penning, B., Pereira, G., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rosero, R., Rossiter, P., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Shaw, S., Shutt, T. A., Silk, J. J., Silva, C., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, W. C., Taylor, R., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., To, W. H., Tovey, D. R., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A., Wang, B., Wang, J. J., Wang, W., Watson, J. R., Webb, R. C., White, R. G., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodward, D., Wright, C. J., Xiang, X., Xu, J., Yeh, M., and Zarzhitsky, P.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract

LUX-ZEPLIN (LZ) is a dark matter detector expected to obtain world-leading sensitivity to weakly interacting massive particles (WIMPs) interacting via nuclear recoils with a ~7-tonne xenon target mass. This manuscript presents sensitivity projections to several low-energy signals of the complementary electron recoil signal type: 1) an effective neutrino magnetic moment and 2) an effective neutrino millicharge, both for pp-chain solar neutrinos, 3) an axion flux generated by the Sun, 4) axion-like particles forming the galactic dark matter, 5) hidden photons, 6) mirror dark matter, and 7) leptophilic dark matter. World-leading sensitivities are expected in each case, a result of the large 5.6t 1000d exposure and low expected rate of electron recoil backgrounds in the $<$100keV energy regime. A consistent signal generation, background model and profile-likelihood analysis framework is used throughout., Comment: v2 updates exclusion sensitivities from single-sided to two-sided

Published
2021
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28. Enhancing the sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment to low energy signals

Author

Akerib, D. S., Musalhi, A. K. Al, Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Bai, X., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Bauer, D., Baxter, A., Beltrame, P., Bernard, E. P., Bernstein, A., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chott, N. I., Cole, A., Converse, M. V., Cottle, A., Cox, G., Cutter, J. E., Dahl, C. E., de Viveiros, L., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibson, E., Gokhale, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Horn, M., Huang, D. Q., Ignarra, C. M., Jahangir, O., James, R. S., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Kazkaz, K., Khaitan, D., Khazov, A., Khurana, I., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lesko, K. T., Levy, C., Li, J., Liao, J., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Paredes, B. López, Lorenzon, W., Luitz, S., Majewski, P. A., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Morad, J. A., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Pal, S., Palladino, K. J., Palmer, J., Parveen, N., Pease, E. K., Penning, B., Pereira, G., Piepke, A., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rosero, R., Rossiter, P., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Shaw, S., Shutt, T. A., Silk, J. J., Silva, C., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, W. C., Taylor, R., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., To, W. H., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A., Wang, B., Wang, J. J., Wang, W., Watson, J. R., Webb, R. C., White, R. G., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodward, D., Wright, C. J., Xiang, X., Xu, J., Yeh, M., and Zarzhitsky, P.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Two-phase xenon detectors, such as that at the core of the forthcoming LZ dark matter experiment, use photomultiplier tubes to sense the primary (S1) and secondary (S2) scintillation signals resulting from particle interactions in their liquid xenon target. This paper describes a simulation study exploring two techniques to lower the energy threshold of LZ to gain sensitivity to low-mass dark matter and astrophysical neutrinos, which will be applicable to other liquid xenon detectors. The energy threshold is determined by the number of detected S1 photons; typically, these must be recorded in three or more photomultiplier channels to avoid dark count coincidences that mimic real signals. To lower this threshold: a) we take advantage of the double photoelectron emission effect, whereby a single vacuum ultraviolet photon has a $\sim20\%$ probability of ejecting two photoelectrons from a photomultiplier tube photocathode; and b) we drop the requirement of an S1 signal altogether, and use only the ionization signal, which can be detected more efficiently. For both techniques we develop signal and background models for the nominal exposure, and explore accompanying systematic effects, including the dependence on the free electron lifetime in the liquid xenon. When incorporating double photoelectron signals, we predict a factor of $\sim 4$ sensitivity improvement to the dark matter-nucleon scattering cross-section at $2.5$ GeV/c$^2$, and a factor of $\sim1.6$ increase in the solar $^8$B neutrino detection rate. Dropping the S1 requirement may allow sensitivity gains of two orders of magnitude in both cases. Finally, we apply these techniques to even lower masses by taking into account the atomic Migdal effect; this could lower the dark matter particle mass threshold to $80$ MeV/c$^2$., Comment: 14 pages, 6 figures

Published
2021

29. Characterization of SABRE crystal NaI-33 with direct underground counting

Author

Antonello, M., Arnquist, I. J., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., Dafinei, I., D'Angelo, D., D'Imperio, G., D'Incecco, M., Di Carlo, G., Diemoz, M., Di Giacinto, A., Di Ludovico, A., Dix, W., Duffy, A. R., Hoppe, E., Ianni, A., Iannone, M., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., Milana, S., Mould, J., Nuti, F., Orlandi, D., Pettinacci, V., Pietrofaccia, L., Rahatlou, S., Scutti, F., Souza, M., Stuchbery, A. E., Suerfu, B., Tomei, C., Urquijo, P., Vignoli, C., Wallner, A., Wada, M., Williams, A. G., Zani, A., and Zurowski, M.

Subjects
Physics - Instrumentation and Detectors
Abstract

Ultra-pure NaI(Tl) crystals are the key element for a model-independent verification of the long standing DAMA result and a powerful means to search for the annual modulation signature of dark matter interactions. The SABRE collaboration has been developing cutting-edge techniques for the reduction of intrinsic backgrounds over several years. In this paper we report the first characterization of a 3.4 kg crystal, named NaI-33, performed in an underground passive shielding setup at LNGS. NaI-33 has a record low $^{39}$K contamination of 4.3$\pm$0.2 ppb as determined by mass spectrometry. We measured a light yield of 11.1$\pm$0.2 photoelectrons/keV and an energy resolution of 13.2% (FWHM/E) at 59.5 keV. We evaluated the activities of $^{226}$Ra and $^{228}$Th inside the crystal to be $5.9\pm0.6 \mu$Bq/kg and $1.6\pm0.3 \mu$Bq/kg, respectively, which would indicate a contamination from $^{238}$U and $^{232}$Th at part-per-trillion level. We measured an activity of 0.51$\pm$0.02 mBq/kg due to $^{210}$Pb out of equilibrium and a $\alpha$ quenching factor of 0.63$\pm$0.01 at 5304 keV. We illustrate the analyses techniques developed to reject electronic noise in the lower part of the energy spectrum. A cut-based strategy and a multivariate approach indicated a rate, attributed to the intrinsic radioactivity of the crystal, of $\sim$1 count/day/kg/keV in the [5-20] keV region.

Published
2020
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30. Characterization of SABRE crystal NaI-33 with direct underground counting

Author

Antonello, M, Arnquist, IJ, Barberio, E, Baroncelli, T, Benziger, J, Bignell, LJ, Bolognino, I, Calaprice, F, Copello, S, Dafinei, I, D’Angelo, D, D’Imperio, G, D’Incecco, M, Di Carlo, G, Diemoz, M, Di Giacinto, A, Di Ludovico, A, Dix, W, Duffy, AR, Hoppe, E, Ianni, A, Iannone, M, Ioannucci, L, Krishnan, S, Lane, GJ, Mahmood, I, Mariani, A, Milana, S, Mould, J, Nuti, F, Orlandi, D, Pettinacci, V, Pietrofaccia, L, Rahatlou, S, Scutti, F, Souza, M, Stuchbery, AE, Suerfu, B, Tomei, C, Urquijo, P, Vignoli, C, Wallner, A, Wada, M, Williams, AG, Zani, A, and Zurowski, M

Subjects
Nuclear and Plasma Physics, Physical Sciences, physics.ins-det, 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

Abstract: Ultra-pure NaI(Tl) crystals are the key element for a model-independent verification of the long standing DAMA result and a powerful means to search for the annual modulation signature of dark matter interactions. The SABRE collaboration has been developing cutting-edge techniques for the reduction of intrinsic backgrounds over several years. In this paper we report the first characterization of a 3.4 kg crystal, named NaI-33, performed in an underground passive shielding setup at LNGS. NaI-33 has a record low $$^{39}$$ 39 K contamination of 4.3 ± 0.2 ppb as determined by mass spectrometry. We measured a light yield of 11.1 ± 0.2 photoelectrons/keV and an energy resolution of 13.2% (FWHM/E) at 59.5 keV. We evaluated the activities of $$^{226}$$ 226 Ra and $$^{228}$$ 228 Th inside the crystal to be $$5.9\pm 0.6~\upmu $$ 5.9 ± 0.6 μ Bq/kg and $$1.6\pm 0.3~\upmu $$ 1.6 ± 0.3 μ Bq/kg, respectively, which would indicate a contamination from $$^{238}$$ 238 U and $$^{232}$$ 232 Th at part-per-trillion level. We measured an activity of 0.51 ± 0.02 mBq/kg due to $$^{210}$$ 210 Pb out of equilibrium and a $$\alpha $$ α quenching factor of 0.63 ± 0.01 at 5304 keV. We illustrate the analyses techniques developed to reject electronic noise in the lower part of the energy spectrum. A cut-based strategy and a multivariate approach indicated a rate, attributed to the intrinsic radioactivity of the crystal, of $$\sim $$ ∼ 1 count/day/kg/keV in the [5–20] keV region.

Published
2021

31. The SABRE project and the SABRE PoP

Author

Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Dix, W., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., Mastrodicasa, M., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovic, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Toso, V., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., and Xu, J.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

SABRE aims to directly measure the annual modulation of the dark matter interaction rate with NaI(Tl) crystals. A modulation compatible with the standard hypothesis in which our Galaxy is embedded in a dark matter halo has been measured by the DAMA experiment in the same target material. Other direct detection experiments, using different target materials, seem to exclude the interpretation of such modulation in the simplest scenario of WIMP-nucleon elastic scattering. The SABRE experiment aims to carry out an independent search with sufficient sensitivity to confirm or refute the DAMA claim. The SABRE concept and goal is to obtain a background rate of the order of 0.1 cpd/kg/keVee in the energy region of interest. This challenging goal is achievable by operating high-purity crystals inside a liquid scintillator veto for active background rejection. In addition, twin detectors will be located in the northern and southern hemispheres to identify possible contributions to the modulation from seasonal or site-related effects. The SABRE project includes an initial Proof-of-Principle phase at LNGS (Italy), to assess the radio-purity of the crystals and the efficiency of the liquid scintillator veto. This paper describes the general concept of SABRE and the expected sensitivity to WIMP annual modulation., Comment: 7 pages, 4 figures

Published
2018
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32. Monte Carlo simulation of the SABRE PoP background

Author

Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D'Angelo, D., D'Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., McGee, P., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovich, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., Xu, J., and Zurowski, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

SABRE (Sodium-iodide with Active Background REjection) is a direct dark matter search experiment based on an array of radio-pure NaI(Tl) crystals surrounded by a liquid scintillator veto. Twin SABRE experiments in the Northern and Southern Hemispheres will differentiate a dark matter signal from seasonal and local effects. The experiment is currently in a Proof-of-Principle (PoP) phase, whose goal is to demonstrate that the background rate is low enough to carry out an independent search for a dark matter signal, with sufficient sensitivity to confirm or refute the DAMA result during the following full-scale experimental phase. The impact of background radiation from the detector materials and the experimental site needs to be carefully investigated, including both intrinsic and cosmogenically activated radioactivity. Based on the best knowledge of the most relevant sources of background, we have performed a detailed Monte Carlo study evaluating the expected background in the dark matter search spectral region. The simulation model described in this paper guides the design of the full-scale experiment and will be fundamental for the interpretation of the measured background and hence for the extraction of a possible dark matter signal., Comment: 13 pages, 5 figures

Published
2018
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33. A White Paper on keV Sterile Neutrino Dark Matter

Author

Adhikari, R., Agostini, M., Ky, N. Anh, Araki, T., Archidiacono, M., Bahr, M., Baur, J., Behrens, J., Bezrukov, F., Dev, P. S. Bhupal, Borah, D., Boyarsky, A., de Gouvea, A., Pires, C. A. de S., de Vega, H. J., Dias, A. G., Di Bari, P., Djurcic, Z., Dolde, K., Dorrer, H., Durero, M., Dragoun, O., Drewes, M., Drexlin, G., Düllmann, Ch. E., Eberhardt, K., Eliseev, S., Enss, C., Evans, N. W., Faessler, A., Filianin, P., Fischer, V., Fleischmann, A., Formaggio, J. A., Franse, J., Fraenkle, F. M., Frenk, C. S., Fuller, G., Gastaldo, L., Garzilli, A., Giunti, C., Glück, F., Goodman, M. C., Gonzalez-Garcia, M. C., Gorbunov, D., Hamann, J., Hannen, V., Hannestad, S., Hansen, S. H., Hassel, C., Heeck, J., Hofmann, F., Houdy, T., Huber, A., Iakubovskyi, D., Ianni, A., Ibarra, A., Jacobsson, R., Jeltema, T., Jochum, J., Kempf, S., Kieck, T., Korzeczek, M., Kornoukhov, V., Lachenmaier, T., Laine, M., Langacker, P., Lasserre, T., Lesgourgues, J., Lhuillier, D., Li, Y. F., Liao, W., Long, A. W., Maltoni, M., Mangano, G., Mavromatos, N. E., Menci, N., Merle, A., Mertens, S., Mirizzi, A., Monreal, B., Nozik, A., Neronov, A., Niro, V., Novikov, Y., Oberauer, L., Otten, E., Palanque-Delabrouille, N., Pallavicini, M., Pantuev, V. S., Papastergis, E., Parke, S., Pascoli, S., Pastor, S., Patwardhan, A., Pilaftsis, A., Radford, D. C., Ranitzsch, P. C. -O., Rest, O., Robinson, D. J., da Silva, P. S. Rodrigues, Ruchayskiy, O., Sanchez, N. G., Sasaki, M., Saviano, N., Schneider, A., Schneider, F., Schwetz, T., Schönert, S., Scholl, S., Shankar, F., Shrock, R., Steinbrink, N., Strigari, L., Suekane, F., Suerfu, B., Takahashi, R., Van, N. Thi Hong, Tkachev, I., Totzauer, M., Tsai, Y., Tully, C. G., Valerius, K., Valle, J. W. F., Venos, D., Viel, M., Vivier, M., Wang, M. Y., Weinheimer, C., Wendt, K., Winslow, L., Wolf, J., Wurm, M., Xing, Z., Zhou, S., and Zuber, K.

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, High Energy Physics - Experiment
Abstract

We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and particle physics - in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. Here, we first review the physics motivation for sterile neutrino Dark Matter, based on challenges and tensions in purely cold Dark Matter scenarios. We then round out the discussion by critically summarizing all known constraints on sterile neutrino Dark Matter arising from astrophysical observations, laboratory experiments, and theoretical considerations. In this context, we provide a balanced discourse on the possibly positive signal from X-ray observations. Another focus of the paper concerns the construction of particle physics models, aiming to explain how sterile neutrinos of keV-scale masses could arise in concrete settings beyond the Standard Model of elementary particle physics. The paper ends with an extensive review of current and future astrophysical and laboratory searches, highlighting new ideas and their experimental challenges, as well as future perspectives for the discovery of sterile neutrinos., Comment: v2: 257 pages, 57 figures, content matches published version [JCAP01(2017)025]; over 100 authors from several different communities

Published
2016
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34. Response of a proportional counter to $^{37}$Ar and $^{71}$Ge: measured spectra versus Geant4 simulation

Author

Abdurashitov, D. N, Malyshkin, Yu. M, Matushko, V. L., and Suerfu, B.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The energy deposition spectra of $^{37}$Ar and $^{71}$Ge in a miniature proportional counter are measured and compared in detail to the model response simulated with Geant4. A certain modification of the Geant4 code, making it possible to trace the deexcitation of atomic shells properly, is suggested. Modified Geant4 is able to reproduce a response of particle detectors in detail in the keV energy range. This feature is very important for the laboratory experiments that search for massive sterile neutrinos as well as for dark matter searches that employ direct detection of recoil nuclei. This work demonstrates the reliability of Geant4 simulation at low energies., Comment: 5 pages, 2 figures; minor changes were done 02 Mar 2016 acording to reviewer's suggestions (English was improved, figures were combined, some words and sentences were corrected including the title), no results and conclusions were changed

Published
2015
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35. Monte Carlo simulation of the SABRE PoP background

Author

Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L.J., Bolognino, I., Calaprice, F., Copello, S., D’Angelo, D., D’Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Duffy, A.R., Froborg, F., Giovanetti, G.K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G.J., Mahmood, I., Mariani, A., McGee, P., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovich, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M.J., Stuchbery, A.E., Suerfu, B., Tomei, C., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A.G., Xu, J., and Zurowski, M.

Published
2019
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36. Background determination for the LUX-ZEPLIN dark matter experiment

Author

Aalbers, J., Akerib, D. S., Musalhi, A. K. Al, Alder, F., Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Baker, A., Bang, J., Bargemann, J. W., Baxter, A., Beattie, K., Beltrame, P., Bernard, E. P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Chan, C., Chawla, A., Chen, H., Chiang, A. P. S., Chott, N. I., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Dahl, C. E., David, A., Dey, S., de Viveiros, L., Ding, C., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibbons, R., Gilchriese, M. G. D., Gokhale, S., Green, J., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Han, S., Hartigan-O’Connor, E., Haselschwardt, S. J., Hertel, S. A., Heuermann, G., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jacobsen, R. G., Jahangir, O., James, R. S., Johnson, J., Kaboth, A. C., Kamaha, A. C., Khaitan, D., Khurana, I., Kirk, R., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Krikler, B., Kudryavtsev, V. A., Leason, E. A., Lee, J., Leonard, D. S., Lesko, K. T., Levy, C., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Asamar, E. Lopez, Paredes, B. López, Lorenzon, W., Lu, C., Luitz, S., Majewski, P. A., Manalaysay, A., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Mendoza, J. D. Morales, Morrison, E., Mount, B. J., Murdy, M., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nguyen, A., Nikoleyczik, J. A., Olcina, I., Oliver-Mallory, K. C., Orpwood, J., Palladino, K. J., Palmer, J., Parveen, N., Patton, S. J., Penning, B., Pereira, G., Perry, E., Pershing, T., Piepke, A., Porzio, D., Poudel, S., Qie, Y., Reichenbacher, J., Rhyne, C. A., Riffard, Q., Rischbieter, G. R. C., Riyat, H. S., Rosero, R., Rossiter, P., Rushton, T., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Shaw, S., Shutt, T., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, R., Taylor, W. C., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., Tong, Z., Tovey, D. R., Tranter, J., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A. C., Wang, A., Wang, J. J., Wang, W., Wang, Y., Watson, J. R., Webb, R. C., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., and Yeh, M.

Abstract

The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to 9.2×10−48 cm2 for the spin-independent interaction of a 36 GeV/c2 WIMP at 90% confidence level. In this paper, we present a comprehensive analysis of the backgrounds important for this result and for other upcoming physics analyses, including neutrinoless double-beta decay searches and effective field theory interpretations of LUX-ZEPLIN data. We confirm that the in-situ determinations of bulk and fixed radioactive backgrounds are consistent with expectations from the ex-situ assays. The observed background rate after WIMP search criteria were applied was (6.3±0.5)×10−5 events/keVee/kg/day in the low-energy region, approximately 60 times lower than the equivalent rate reported by the LUX experiment.

Published
2023

37. Status and prospects of SABRE North

Author

Tomei, Claudia, primary, Calaprice, F., additional, B. Benziger, J., additional, Copello, S., additional, Dafinei, I., additional, D’Angelo, D., additional, D’Imperio, G., additional, Di Carlo, G., additional, Diemoz, M., additional, Di Giacinto, A., additional, Di Ludovico, A., additional, Ianna, M., additional, Ianni, A., additional, Milana, S., additional, Orlandi, D., additional, Pettinacci, V., additional, Pietrofaccia, L., additional, Rahatlou, S., additional, Suerfu, B., additional, Vignoli, C., additional, and Zani, A., additional

Published
2023
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38. A next-generation liquid xenon observatory for dark matter and neutrino physics

Author

Aalbers, J, AbdusSalam, S S, Abe, K, Aerne, V, Agostini, F, Ahmed Maouloud, S, Akerib, D S, Akimov, D Y, Akshat, J, Al Musalhi, A K, Alder, F, Alsum, S K, Althueser, L, Amarasinghe, C S, Amaro, F D, Ames, A, Anderson, T J, Andrieu, B, Angelides, N, Angelino, E, Angevaare, J, Antochi, V C, Antón Martin, D, Antunovic, B, Aprile, E, Araújo, H M, Armstrong, J E, Arneodo, F, Arthurs, M, Asadi, P, Baek, S, Bai, X, Bajpai, D, Baker, A, Balajthy, J, Balashov, S, Balzer, M, Bandyopadhyay, A, Bang, J, Barberio, E, Bargemann, J W, Baudis, L, Bauer, D, Baur, D, Baxter, A, Baxter, A L, Bazyk, M, Beattie, K, Behrens, J, Bell, N F, Bellagamba, L, Beltrame, P, Benabderrahmane, M, Bernard, E P, Bertone, G F, Bhattacharjee, P, Bhatti, A, Biekert, A, Biesiadzinski, T P, Binau, A R, Biondi, R, Biondi, Y, Birch, H J, Bishara, F, Bismark, A, Blanco, C, Blockinger, G M, Bodnia, E, Boehm, C, Bolozdynya, A I, Bolton, P D, Bottaro, S, Bourgeois, C, Boxer, B, Brás, P, Breskin, A, Breur, P A, Brew, C A J, Brod, J, Brookes, E, Brown, A, Brown, E, Bruenner, S, Bruno, G, Budnik, R, Bui, T K, Burdin, S, Buse, S, Busenitz, J K, Buttazzo, D, Buuck, M, Buzulutskov, A, Cabrita, R, Cai, C, Cai, D, Capelli, C, Cardoso, J M R, Carmona-Benitez, M C, Cascella, M, Catena, R, Chakraborty, S, Chan, C, Chang, S, Chauvin, A, Chawla, A, Chen, H, Chepel, V, Chott, N I, Cichon, D, Cimental Chavez, A, Cimmino, B, Clark, M, Co, R T, Colijn, A P, Conrad, J, Converse, M V, Costa, M, Cottle, A, Cox, G, Creaner, O, Cuenca Garcia, J J, Cussonneau, J P, Cutter, J E, Dahl, C E, D’Andrea, V, David, A, Decowski, M P, Dent, J B, Deppisch, F F, de Viveiros, L, Di Gangi, P, Di Giovanni, A, Di Pede, S, Dierle, J, Diglio, S, Dobson, J E Y, Doerenkamp, M, Douillet, D, Drexlin, G, Druszkiewicz, E, Dunsky, D, Eitel, K, Elykov, A, Emken, T, Engel, R, Eriksen, S R, Fairbairn, M, Fan, A, Fan, J J, Farrell, S J, Fayer, S, Fearon, N M, Ferella, A, Ferrari, C, Fieguth, A, Fiorucci, S, Fischer, H, Flaecher, H, Flierman, M, Florek, T, Foot, R, Fox, P J, Franceschini, R, Fraser, E D, Frenk, C S, Frohlich, S, Fruth, T, Fulgione, W, Fuselli, C, Gaemers, P, Gaior, R, Gaitskell, R J, Galloway, M, Gao, F, Garcia Garcia, I, Genovesi, J, Ghag, C, Ghosh, S, Gibson, E, Gil, W, Giovagnoli, D, Girard, F, Glade-Beucke, R, Glück, F, Gokhale, S, de Gouvêa, A, Gráf, L, Grandi, L, Grigat, J, Grinstein, B, van der Grinten, M G D, Grössle, R, Guan, H, Guida, M, Gumbsheimer, R, Gwilliam, C B, Hall, C R, Hall, L J, Hammann, R, Han, K, Hannen, V, Hansmann-Menzemer, S, Harata, R, Hardin, S P, Hardy, E, Hardy, C A, Harigaya, K, Harnik, R, Haselschwardt, S J, Hernandez, M, Hertel, S A, Higuera, A, Hils, C, Hochrein, S, Hoetzsch, L, Hoferichter, M, Hood, N, Hooper, D, Horn, M, Howlett, J, Huang, D Q, Huang, Y, Hunt, D, Iacovacci, M, Iaquaniello, G, Ide, R, Ignarra, C M, Iloglu, G, Itow, Y, Jacquet, E, Jahangir, O, Jakob, J, James, R S, Jansen, A, Ji, W, Ji, X, Joerg, F, Johnson, J, Joy, A, Kaboth, A C, Kalhor, L, Kamaha, A C, Kanezaki, K, Kar, K, Kara, M, Kato, N, Kavrigin, P, Kazama, S, Keaveney, A W, Kellerer, J, Khaitan, D, Khazov, A, Khundzakishvili, G, Khurana, I, Kilminster, B, Kleifges, M, Ko, P, Kobayashi, M, Kodroff, D, Koltmann, G, Kopec, A, Kopmann, A, Kopp, J, Korley, L, Kornoukhov, V N, Korolkova, E V, Kraus, H, Krauss, L M, Kravitz, S, Kreczko, L, Kudryavtsev, V A, Kuger, F, Kumar, J, López Paredes, B, LaCascio, L, Laha, R, Laine, Q, Landsman, H, Lang, R F, Leason, E A, Lee, J, Leonard, D S, Lesko, K T, Levinson, L, Levy, C, Li, I, Li, S C, Li, T, Liang, S, Liebenthal, C S, Lin, J, Lin, Q, Lindemann, S, Lindner, M, Lindote, A, Linehan, R, Lippincott, W H, Liu, X, Liu, K, Liu, J, Loizeau, J, Lombardi, F, Long, J, Lopes, M I, Lopez Asamar, E, Lorenzon, W, Lu, C, Luitz, S, Ma, Y, Machado, P A N, Macolino, C, Maeda, T, Mahlstedt, J, Majewski, P A, Manalaysay, A, Mancuso, A, Manenti, L, Manfredini, A, Mannino, R L, Marangou, N, March-Russell, J, Marignetti, F, Marrodán Undagoitia, T, Martens, K, Martin, R, Martinez-Soler, I, Masbou, J, Masson, D, Masson, E, Mastroianni, S, Mastronardi, M, Matias-Lopes, J A, McCarthy, M E, McFadden, N, McGinness, E, McKinsey, D N, McLaughlin, J, McMichael, K, Meinhardt, P, Menéndez, J, Meng, Y, Messina, M, Midha, R, Milisavljevic, D, Miller, E H, Milosevic, B, Milutinovic, S, Mitra, S A, Miuchi, K, Mizrachi, E, Mizukoshi, K, Molinario, A, Monte, A, Monteiro, C M B, Monzani, M E, Moore, J S, Morå, K, Morad, J A, Morales Mendoza, J D, Moriyama, S, Morrison, E, Morteau, E, Mosbacher, Y, Mount, B J, Mueller, J, Murphy, A St J, Murra, M, Naim, D, Nakamura, S, Nash, E, Navaieelavasani, N, Naylor, A, Nedlik, C, Nelson, H N, Neves, F, Newstead, J L, Ni, K, Nikoleyczik, J A, Niro, V, Oberlack, U G, Obradovic, M, Odgers, K, O’Hare, C A J, Oikonomou, P, Olcina, I, Oliver-Mallory, K, Oranday, A, Orpwood, J, Ostrovskiy, I, Ozaki, K, Paetsch, B, Pal, S, Palacio, J, Palladino, K J, Palmer, J, Panci, P, Pandurovic, M, Parlati, A, Parveen, N, Patton, S J, Pěč, V, Pellegrini, Q, Penning, B, Pereira, G, Peres, R, Perez-Gonzalez, Y, Perry, E, Pershing, T, Petrossian-Byrne, R, Pienaar, J, Piepke, A, Pieramico, G, Pierre, M, Piotter, M, Pizzella, V, Plante, G, Pollmann, T, Porzio, D, Qi, J, Qie, Y, Qin, J, Quevedo, F, Raj, N, Rajado Silva, M, Ramanathan, K, Ramírez García, D, Ravanis, J, Redard-Jacot, L, Redigolo, D, Reichard, S, Reichenbacher, J, Rhyne, C A, Richards, A, Riffard, Q, Rischbieter, G R C, Rocchetti, A, Rosenfeld, S L, Rosero, R, Rupp, N, Rushton, T, Saha, S, Salucci, P, Sanchez, L, Sanchez-Lucas, P, Santone, D, dos Santos, J M F, Sarnoff, I, Sartorelli, G, Sazzad, A B M R, Scheibelhut, M, Schnee, R W, Schrank, M, Schreiner, J, Schulte, P, Schulte, D, Schulze Eissing, H, Schumann, M, Schwemberger, T, Schwenk, A, Schwetz, T, Scotto Lavina, L, Scovell, P R, Sekiya, H, Selvi, M, Semenov, E, Semeria, F, Shagin, P, Shaw, S, Shi, S, Shockley, E, Shutt, T A, Si-Ahmed, R, Silk, J J, Silva, C, Silva, M C, Simgen, H, Šimkovic, F, Sinev, G, Singh, R, Skulski, W, Smirnov, J, Smith, R, Solmaz, M, Solovov, V N, Sorensen, P, Soria, J, Sparmann, T J, Stancu, I, Steidl, M, Stevens, A, Stifter, K, Strigari, L E, Subotic, D, Suerfu, B, Suliga, A M, Sumner, T J, Szabo, P, Szydagis, M, Takeda, A, Takeuchi, Y, Tan, P-L, Taricco, C, Taylor, W C, Temples, D J, Terliuk, A, Terman, P A, Thers, D, Thieme, K, Thümmler, T, Tiedt, D R, Timalsina, M, To, W H, Toennies, F, Tong, Z, Toschi, F, Tovey, D R, Tranter, J, Trask, M, Trinchero, G C, Tripathi, M, Tronstad, D R, Trotta, R, Tsai, Y D, Tunnell, C D, Turner, W G, Ueno, R, Urquijo, P, Utku, U, Vaitkus, A, Valerius, K, Vassilev, E, Vecchi, S, Velan, V, Vetter, S, Vincent, A C, Vittorio, L, Volta, G, von Krosigk, B, von Piechowski, M, Vorkapic, D, Wagner, C E M, Wang, A M, Wang, B, Wang, Y, Wang, W, Wang, J J, Wang, L-T, Wang, M, Watson, J R, Wei, Y, Weinheimer, C, Weisman, E, Weiss, M, Wenz, D, West, S M, Whitis, T J, Williams, M, Wilson, M J, Winkler, D, Wittweg, C, Wolf, J, Wolf, T, Wolfs, F L H, Woodford, S, Woodward, D, Wright, C J, Wu, V H S, Wu, P, Wüstling, S, Wurm, M, Xia, Q, Xiang, X, Xing, Y, Xu, J, Xu, Z, Xu, D, Yamashita, M, Yamazaki, R, Yan, H, Yang, L, Yang, Y, Ye, J, Yeh, M, Young, I, Yu, H B, Yu, T T, Yuan, L, Zavattini, G, Zerbo, S, Zhang, Y, Zhong, M, Zhou, N, Zhou, X, Zhu, T, Zhu, Y, Zhuang, Y, Zopounidis, J P, Zuber, K, Zupan, J, Aalbers, J, AbdusSalam, S S, Abe, K, Aerne, V, Agostini, F, Ahmed Maouloud, S, Akerib, D S, Akimov, D Y, Akshat, J, Al Musalhi, A K, Alder, F, Alsum, S K, Althueser, L, Amarasinghe, C S, Amaro, F D, Ames, A, Anderson, T J, Andrieu, B, Angelides, N, Angelino, E, Angevaare, J, Antochi, V C, Antón Martin, D, Antunovic, B, Aprile, E, Araújo, H M, Armstrong, J E, Arneodo, F, Arthurs, M, Asadi, P, Baek, S, Bai, X, Bajpai, D, Baker, A, Balajthy, J, Balashov, S, Balzer, M, Bandyopadhyay, A, Bang, J, Barberio, E, Bargemann, J W, Baudis, L, Bauer, D, Baur, D, Baxter, A, Baxter, A L, Bazyk, M, Beattie, K, Behrens, J, Bell, N F, Bellagamba, L, Beltrame, P, Benabderrahmane, M, Bernard, E P, Bertone, G F, Bhattacharjee, P, Bhatti, A, Biekert, A, Biesiadzinski, T P, Binau, A R, Biondi, R, Biondi, Y, Birch, H J, Bishara, F, Bismark, A, Blanco, C, Blockinger, G M, Bodnia, E, Boehm, C, Bolozdynya, A I, Bolton, P D, Bottaro, S, Bourgeois, C, Boxer, B, Brás, P, Breskin, A, Breur, P A, Brew, C A J, Brod, J, Brookes, E, Brown, A, Brown, E, Bruenner, S, Bruno, G, Budnik, R, Bui, T K, Burdin, S, Buse, S, Busenitz, J K, Buttazzo, D, Buuck, M, Buzulutskov, A, Cabrita, R, Cai, C, Cai, D, Capelli, C, Cardoso, J M R, Carmona-Benitez, M C, Cascella, M, Catena, R, Chakraborty, S, Chan, C, Chang, S, Chauvin, A, Chawla, A, Chen, H, Chepel, V, Chott, N I, Cichon, D, Cimental Chavez, A, Cimmino, B, Clark, M, Co, R T, Colijn, A P, Conrad, J, Converse, M V, Costa, M, Cottle, A, Cox, G, Creaner, O, Cuenca Garcia, J J, Cussonneau, J P, Cutter, J E, Dahl, C E, D’Andrea, V, David, A, Decowski, M P, Dent, J B, Deppisch, F F, de Viveiros, L, Di Gangi, P, Di Giovanni, A, Di Pede, S, Dierle, J, Diglio, S, Dobson, J E Y, Doerenkamp, M, Douillet, D, Drexlin, G, Druszkiewicz, E, Dunsky, D, Eitel, K, Elykov, A, Emken, T, Engel, R, Eriksen, S R, Fairbairn, M, Fan, A, Fan, J J, Farrell, S J, Fayer, S, Fearon, N M, Ferella, A, Ferrari, C, Fieguth, A, Fiorucci, S, Fischer, H, Flaecher, H, Flierman, M, Florek, T, Foot, R, Fox, P J, Franceschini, R, Fraser, E D, Frenk, C S, Frohlich, S, Fruth, T, Fulgione, W, Fuselli, C, Gaemers, P, Gaior, R, Gaitskell, R J, Galloway, M, Gao, F, Garcia Garcia, I, Genovesi, J, Ghag, C, Ghosh, S, Gibson, E, Gil, W, Giovagnoli, D, Girard, F, Glade-Beucke, R, Glück, F, Gokhale, S, de Gouvêa, A, Gráf, L, Grandi, L, Grigat, J, Grinstein, B, van der Grinten, M G D, Grössle, R, Guan, H, Guida, M, Gumbsheimer, R, Gwilliam, C B, Hall, C R, Hall, L J, Hammann, R, Han, K, Hannen, V, Hansmann-Menzemer, S, Harata, R, Hardin, S P, Hardy, E, Hardy, C A, Harigaya, K, Harnik, R, Haselschwardt, S J, Hernandez, M, 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Abstract

The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for weakly interacting massive particles, while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical sources. A next-generation xenon-based detector will therefore be a true multi-purpose observatory to significantly advance particle physics, nuclear physics, astrophysics, solar physics, and cosmology. This review article presents the science cases for such a detector.

Published
2023

41. The SABRE project and the SABRE Proof-of-Principle

Author

Antonello, M., Barberio, E., Baroncelli, T., Benziger, J., Bignell, L. J., Bolognino, I., Calaprice, F., Copello, S., D’Angelo, D., D’Imperio, G., Dafinei, I., Di Carlo, G., Diemoz, M., Di Ludovico, A., Dix, W., Duffy, A. R., Froborg, F., Giovanetti, G. K., Hoppe, E., Ianni, A., Ioannucci, L., Krishnan, S., Lane, G. J., Mahmood, I., Mariani, A., Mastrodicasa, M., Montini, P., Mould, J., Nuti, F., Orlandi, D., Paris, M., Pettinacci, V., Pietrofaccia, L., Prokopovic, D., Rahatlou, S., Rossi, N., Sarbutt, A., Shields, E., Souza, M. J., Stuchbery, A. E., Suerfu, B., Tomei, C., Toso, V., Urquijo, P., Vignoli, C., Wada, M., Wallner, A., Williams, A. G., and Xu, J.

Published
2019
Full Text
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42. A next-generation liquid xenon observatory for dark matter and neutrino physics

Author

Aalbers, J, primary, AbdusSalam, S S, additional, Abe, K, additional, Aerne, V, additional, Agostini, F, additional, Ahmed Maouloud, S, additional, Akerib, D S, additional, Akimov, D Y, additional, Akshat, J, additional, Al Musalhi, A K, additional, Alder, F, additional, Alsum, S K, additional, Althueser, L, additional, Amarasinghe, C S, additional, Amaro, F D, additional, Ames, A, additional, Anderson, T J, additional, Andrieu, B, additional, Angelides, N, additional, Angelino, E, additional, Angevaare, J, additional, Antochi, V C, additional, Antón Martin, D, additional, Antunovic, B, additional, Aprile, E, additional, Araújo, H M, additional, Armstrong, J E, additional, Arneodo, F, additional, Arthurs, M, additional, Asadi, P, additional, Baek, S, additional, Bai, X, additional, Bajpai, D, additional, Baker, A, additional, Balajthy, J, additional, Balashov, S, additional, Balzer, M, additional, Bandyopadhyay, A, additional, Bang, J, additional, Barberio, E, additional, Bargemann, J 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additional, Frenk, C S, additional, Frohlich, S, additional, Fruth, T, additional, Fulgione, W, additional, Fuselli, C, additional, Gaemers, P, additional, Gaior, R, additional, Gaitskell, R J, additional, Galloway, M, additional, Gao, F, additional, Garcia Garcia, I, additional, Genovesi, J, additional, Ghag, C, additional, Ghosh, S, additional, Gibson, E, additional, Gil, W, additional, Giovagnoli, D, additional, Girard, F, additional, Glade-Beucke, R, additional, Glück, F, additional, Gokhale, S, additional, de Gouvêa, A, additional, Gráf, L, additional, Grandi, L, additional, Grigat, J, additional, Grinstein, B, additional, van der Grinten, M G D, additional, Grössle, R, additional, Guan, H, additional, Guida, M, additional, Gumbsheimer, R, additional, Gwilliam, C B, additional, Hall, C R, additional, Hall, L J, additional, Hammann, R, additional, Han, K, additional, Hannen, V, additional, Hansmann-Menzemer, S, additional, Harata, R, additional, Hardin, S P, additional, Hardy, E, 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additional, Stevens, A, additional, Stifter, K, additional, Strigari, L E, additional, Subotic, D, additional, Suerfu, B, additional, Suliga, A M, additional, Sumner, T J, additional, Szabo, P, additional, Szydagis, M, additional, Takeda, A, additional, Takeuchi, Y, additional, Tan, P-L, additional, Taricco, C, additional, Taylor, W C, additional, Temples, D J, additional, Terliuk, A, additional, Terman, P A, additional, Thers, D, additional, Thieme, K, additional, Thümmler, T, additional, Tiedt, D R, additional, Timalsina, M, additional, To, W H, additional, Toennies, F, additional, Tong, Z, additional, Toschi, F, additional, Tovey, D R, additional, Tranter, J, additional, Trask, M, additional, Trinchero, G C, additional, Tripathi, M, additional, Tronstad, D R, additional, Trotta, R, additional, Tsai, Y D, additional, Tunnell, C D, additional, Turner, W G, additional, Ueno, R, additional, Urquijo, P, additional, Utku, U, additional, Vaitkus, A, additional, Valerius, K, additional, Vassilev, E, additional, Vecchi, S, additional, Velan, V, additional, Vetter, S, additional, Vincent, A C, additional, Vittorio, L, additional, Volta, G, additional, von Krosigk, B, additional, von Piechowski, M, additional, Vorkapic, D, additional, Wagner, C E M, additional, Wang, A M, additional, Wang, B, additional, Wang, Y, additional, Wang, W, additional, Wang, J J, additional, Wang, L-T, additional, Wang, M, additional, Watson, J R, additional, Wei, Y, additional, Weinheimer, C, additional, Weisman, E, additional, Weiss, M, additional, Wenz, D, additional, West, S M, additional, Whitis, T J, additional, Williams, M, additional, Wilson, M J, additional, Winkler, D, additional, Wittweg, C, additional, Wolf, J, additional, Wolf, T, additional, Wolfs, F L H, additional, Woodford, S, additional, Woodward, D, additional, Wright, C J, additional, Wu, V H S, additional, Wu, P, additional, Wüstling, S, additional, Wurm, M, additional, Xia, Q, additional, Xiang, X, additional, Xing, Y, additional, Xu, J, additional, Xu, Z, additional, Xu, D, additional, Yamashita, M, additional, Yamazaki, R, additional, Yan, H, additional, Yang, L, additional, Yang, Y, additional, Ye, J, additional, Yeh, M, additional, Young, I, additional, Yu, H B, additional, Yu, T T, additional, Yuan, L, additional, Zavattini, G, additional, Zerbo, S, additional, Zhang, Y, additional, Zhong, M, additional, Zhou, N, additional, Zhou, X, additional, Zhu, T, additional, Zhu, Y, additional, Zhuang, Y, additional, Zopounidis, J P, additional, Zuber, K, additional, and Zupan, J, additional

Published
2022
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43. Performance of the SABRE detector module in a purely passive shielding

Author

Calaprice, F., primary, Benziger, J. B., additional, Copello, S., additional, Dafinei, I., additional, D’Angelo, D., additional, D’Imperio, G., additional, Di Carlo, G., additional, Diemoz, M., additional, Di Giacinto, A., additional, Di Ludovico, A., additional, Ianna, M., additional, Ianni, A., additional, Mariani, A., additional, Milana, S., additional, Orlandi, D., additional, Pettinacci, V., additional, Pietrofaccia, L., additional, Rahatlou, S., additional, Suerfu, B., additional, Tomei, C., additional, Vignoli, C., additional, and Zani, A., additional

Published
2022
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44. A backing detector for order-keV neutrons

Author

Biekert, A., primary, Chaplinsky, L., additional, Fink, C.W., additional, Garcia-Sciveres, M., additional, Gillis, W.C., additional, Guo, W., additional, Hertel, S.A., additional, Heuermann, G., additional, Li, X., additional, Lin, J., additional, Mahapatra, R., additional, McKinsey, D.N., additional, Patel, P.K., additional, Penning, B., additional, Pinckney, H.D., additional, Platt, M., additional, Pyle, M., additional, Romani, R.K., additional, Serafin, A., additional, Smith, R.J., additional, Suerfu, B., additional, Velan, V., additional, Wang, G., additional, Wang, Y., additional, Watkins, S.L., additional, and Williams, M.R., additional

Published
2022
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45. Cosmogenic production of Ar37 in the context of the LUX-ZEPLIN experiment

Author

Aalbers, J, Akerib, DS, Musalhi, AKA, Alder, F, Alsum, SK, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Bai, X, Baker, A, Balajthy, J, Balashov, S, Bang, J, Bargemann, JW, Bauer, D, Baxter, A, Beattie, K, Bernard, EP, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Blockinger, GM, Bodnia, E, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Busenitz, JK, Buuck, M, Cabrita, R, Carmona-Benitez, MC, Cascella, M, Chan, C, Chawla, A, Chen, H, Chott, NI, Cole, A, Converse, MV, Cottle, A, Cox, G, Creaner, O, Cutter, JE, Dahl, CE, David, A, de Viveiros, L, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fayer, S, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, T, Gaitskell, RJ, Genovesi, J, Ghag, C, Gibson, E, Gilchriese, MGD, Gokhale, S, van der Grinten, MGD, Gwilliam, CB, Hall, CR, Haselschwardt, SJ, Hertel, SA, Horn, M, Huang, DQ, Hunt, D, Ignarra, CM, Jahangir, O, James, RS, Ji, W, Johnson, J, Kaboth, AC, Kamaha, AC, Kamdin, K, Khaitan, D, Khazov, A, Khurana, I, Kodroff, D, Korley, L, Korolkova, EV, Kraus, H, Kravitz, S, Kreczko, L, Kudryavtsev, VA, Leason, EA, Leonard, DS, Lesko, KT, Levy, C, Lee, J, Lin, J, Lindote, A, Linehan, R, Lippincott, WH, Liu, X, Lopes, MI, Asamar, EL, Lopez-Paredes, B, Lorenzon, W, Luitz, S, Majewski, PA, Manalaysay, A, Manenti, L, Mannino, RL, Marangou, N, McCarthy, ME, McKinsey, DN, McLaughlin, J, Miller, EH, Mizrachi, E, Monte, A, Monzani, ME, Morad, JA, Mendoza, JDM, Morrison, E, Mount, BJ, St. J. Murphy, A, Naim, D, Naylor, A, Nedlik, C, Nelson, HN, Neves, F, Nikoleyczik, JA, Nilima, A, Olcina, I, Oliver-Mallory, K, Pal, S, Palladino, KJ, Palmer, J, Parveen, N, Patton, SJ, Pease, EK, Penning, B, Pereira, G, Perry, E, Pershing, J, Piepke, A, Porzio, D, Qie, Y, Reichenbacher, J, Rhyne, CA, Richards, A, Riffard, Q, Rischbieter, GRC, Rosero, R, Rossiter, P, Rushton, T, Santone, D, Sazzad, ABMR, Schnee, RW, Scovell, PR, Shaw, S, Shutt, TA, Silk, JJ, Silva, C, Sinev, G, Smith, R, Solmaz, M, Solovov, VN, Sorensen, P, Soria, J, Stancu, I, Stevens, A, Stifter, K, Suerfu, B, Sumner, TJ, Swanson, N, Szydagis, M, Taylor, WC, Taylor, R, Temples, DJ, Terman, PA, Tiedt, DR, Timalsina, M, To, WH, Tong, Z, Tovey, DR, Trask, M, Tripathi, M, Tronstad, DR, Turner, W, Utku, U, Vaitkus, A, Wang, B, Wang, Y, Wang, JJ, Wang, W, Watson, JR, Webb, RC, White, RG, Whitis, TJ, Williams, M, Wolfs, FLH, Woodford, S, Woodward, D, Wright, CJ, Xia, Q, Xiang, X, Xu, J, and Yeh, M

Published
2022

46. Cosmogenic production of <math><mrow><mmultiscripts><mrow><mi>Ar</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>37</mn></mrow></mmultiscripts></mrow></math> in the context of the LUX-ZEPLIN experiment

Author

Aalbers, J., Akerib, D. S., Al Musalhi, A. K., Alder, F., Alsum, S. K., Amarasinghe, C. S., Ames, A., Anderson, T. J., Angelides, N., Araújo, H. M., Armstrong, J. E., Arthurs, M., Bai, X., Baker, A., Balajthy, J., Balashov, S., Bang, J., Bargemann, J. W., Bauer, D., Baxter, A., Beattie, K., Bernard, E. P., Bhatti, A., Biekert, A., Biesiadzinski, T. P., Birch, H. J., Blockinger, G. M., Bodnia, E., Boxer, B., Brew, C. A. J., Brás, P., Burdin, S., Busenitz, J. K., Buuck, M., Cabrita, R., Carmona-Benitez, M. C., Cascella, M., Chan, C., Chawla, A., Chen, H., Chott, N. I., Cole, A., Converse, M. V., Cottle, A., Cox, G., Creaner, O., Cutter, J. E., Dahl, C. E., David, A., de Viveiros, L., Dobson, J. E. Y., Druszkiewicz, E., Eriksen, S. R., Fan, A., Fayer, S., Fearon, N. M., Fiorucci, S., Flaecher, H., Fraser, E. D., Fruth, T., Gaitskell, R. J., Genovesi, J., Ghag, C., Gibson, E., Gilchriese, M. G. D., Gokhale, S., van der Grinten, M. G. D., Gwilliam, C. B., Hall, C. R., Haselschwardt, S. J., Hertel, S. A., Horn, M., Huang, D. Q., Hunt, D., Ignarra, C. M., Jahangir, O., James, R. S., Ji, W., Johnson, J., Kaboth, A. C., Kamaha, A. C., Kamdin, K., Khaitan, D., Khazov, A., Khurana, I., Kodroff, D., Korley, L., Korolkova, E. V., Kraus, H., Kravitz, S., Kreczko, L., Kudryavtsev, V. A., Leason, E. A., Leonard, D. S., Lesko, K. T., Levy, C., Lee, J., Lin, J., Lindote, A., Linehan, R., Lippincott, W. H., Liu, X., Lopes, M. I., Lopez Asamar, E., Lopez-Paredes, B., Lorenzon, W., Luitz, S., Majewski, P. A., Manalaysay, A., Manenti, L., Mannino, R. L., Marangou, N., McCarthy, M. E., McKinsey, D. N., McLaughlin, J., Miller, E. H., Mizrachi, E., Monte, A., Monzani, M. E., Morad, J. A., Morales Mendoza, J. D., Morrison, E., Mount, B. J., Murphy, A. St. J., Naim, D., Naylor, A., Nedlik, C., Nelson, H. N., Neves, F., Nikoleyczik, J. A., Nilima, A., Olcina, I., Oliver-Mallory, K., Pal, S., Palladino, K. J., Palmer, J., Parveen, N., Patton, S. J., Pease, E. K., Penning, B., Pereira, G., Perry, E., Pershing, J., Piepke, A., Porzio, D., Qie, Y., Reichenbacher, J., Rhyne, C. A., Richards, A., Riffard, Q., Rischbieter, G. R. C., Rosero, R., Rossiter, P., Rushton, T., Santone, D., Sazzad, A. B. M. R., Schnee, R. W., Scovell, P. R., Shaw, S., Shutt, T. A., Silk, J. J., Silva, C., Sinev, G., Smith, R., Solmaz, M., Solovov, V. N., Sorensen, P., Soria, J., Stancu, I., Stevens, A., Stifter, K., Suerfu, B., Sumner, T. J., Swanson, N., Szydagis, M., Taylor, W. C., Taylor, R., Temples, D. J., Terman, P. A., Tiedt, D. R., Timalsina, M., To, W. H., Tong, Z., Tovey, D. R., Trask, M., Tripathi, M., Tronstad, D. R., Turner, W., Utku, U., Vaitkus, A., Wang, B., Wang, Y., Wang, J. J., Wang, W., Watson, J. R., Webb, R. C., White, R. G., Whitis, T. J., Williams, M., Wolfs, F. L. H., Woodford, S., Woodward, D., Wright, C. J., Xia, Q., Xiang, X., Xu, J., and Yeh, M.

Abstract

We estimate the amount of Ar37 produced in natural xenon via cosmic-ray-induced spallation, an inevitable consequence of the transportation and storage of xenon on the Earth’s surface. We then calculate the resulting Ar37 concentration in a 10-tonne payload (similar to that of the LUX-ZEPLIN experiment) assuming a representative schedule of xenon purification, storage, and delivery to the underground facility. Using the spallation model by Silberberg and Tsao, the sea-level production rate of Ar37 in natural xenon is estimated to be 0.024 atoms/kg/day. Assuming the xenon is successively purified to remove radioactive contaminants in 1-tonne batches at a rate of 1 tonne/month, the average Ar37 activity after 10 tons are purified and transported underground is 0.058−0.090 μBq/kg, depending on the degree of argon removal during above-ground purification. Such cosmogenic Ar37 will appear as a noticeable background in the early science data, while decaying with a 35-day half-life. This newly noticed production mechanism of Ar37 should be considered when planning for future liquid-xenon-based experiments.

Published
2022

47. Cosmogenic production of 37 Ar in the context of the LUX-ZEPLIN experiment

Author

Aalbers, J, Akerib, DS, Al Musalhi, AK, Alder, F, Alsum, SK, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Bai, X, Baker, A, Balajthy, J, Balashov, S, Bang, J, Bargemann, JW, Bauer, D, Baxter, A, Beattie, K, Bernard, EP, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Blockinger, GM, Bodnia, E, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Busenitz, JK, Buuck, M, Cabrita, R, Carmona-Benitez, MC, Cascella, M, Chan, C, Chawla, A, Chen, H, Chott, NI, Cole, A, Converse, MV, Cottle, A, Cox, G, Creaner, O, Cutter, JE, Dahl, CE, David, A, De Viveiros, L, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fayer, S, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, T, Gaitskell, RJ, Genovesi, J, Ghag, C, Gibson, E, Gilchriese, MGD, Gokhale, S, Van der Grinten, MGD, Gwilliam, CB, Hall, CR, Haselschwardt, SJ, Hertel, SA, Horn, M, Huang, DQ, Hunt, D, Ignarra, CM, Jahangir, O, James, RS, Ji, W, Johnson, J, Kaboth, AC, Kamaha, AC, Kamdin, K, Khaitan, D, Khazov, A, Khurana, I, Kodroff, D, Korley, L, Korolkova, EV, Kraus, H, Kravitz, S, Kreczko, L, Kudryavtsev, VA, Leason, EA, Leonard, DS, Lesko, KT, Levy, C, Lee, J, Lin, J, Lindote, A, Linehan, R, Lippincott, WH, Liu, X, Lopes, MI, Lopez Asamar, E, Lopez-Paredes, B, Lorenzon, W, Luitz, S, Majewski, PA, Manalaysay, A, Manenti, L, Mannino, RL, Marangou, N, McCarthy, ME, McKinsey, DN, McLaughlin, J, Miller, EH, Mizrachi, E, Monte, A, Monzani, ME, Morad, JA, Morales Mendoza, JD, Morrison, E, Mount, BJ, Murphy, ASJ, Naim, D, Naylor, A, Nedlik, C, Nelson, HN, Neves, F, Nikoleyczik, JA, Nilima, A, Olcina, I, Oliver-Mallory, K, Pal, S, Palladino, KJ, Palmer, J, Parveen, N, Patton, SJ, Pease, EK, Penning, B, Pereira, G, Perry, E, Pershing, J, Piepke, A, Porzio, D, Qie, Y, Reichenbacher, J, Rhyne, CA, Richards, A, Riffard, Q, Rischbieter, GRC, Rosero, R, Rossiter, P, Rushton, T, Santone, D, Sazzad, ABMR, Schnee, RW, Scovell, PR, Shaw, S, Shutt, TA, Silk, JJ, Silva, C, Sinev, G, Smith, R, Solmaz, M, Solovov, VN, Sorensen, P, Soria, J, Stancu, I, Stevens, A, Stifter, K, Suerfu, B, Sumner, TJ, Swanson, N, Szydagis, M, Taylor, WC, Taylor, R, Temples, DJ, Terman, PA, Tiedt, DR, Timalsina, M, To, WH, Tong, Z, Tovey, DR, Trask, M, Tripathi, M, Tronstad, DR, Turner, W, Utku, U, Vaitkus, A, Wang, B, Wang, Y, Wang, JJ, Wang, W, Watson, JR, Webb, RC, White, RG, Whitis, TJ, Williams, M, Wolfs, FLH, Woodford, S, Woodward, D, Wright, CJ, Xia, Q, Xiang, X, Xu, J, and Yeh, M

Subjects
hep-ex, astro-ph.CO, hep-ph, astro-ph.IM
Abstract

We estimate the amount of 37 Ar produced in natural xenon via cosmic-ray-induced spallation, an inevitable consequence of the transportation and storage of xenon on the Earth’s surface. We then calculate the resulting 37 Ar concentration in a 10-tonne payload (similar to that of the LUX-ZEPLIN experiment) assuming a representative schedule of xenon purification, storage, and delivery to the underground facility. Using the spallation model by Silberberg and Tsao, the sea-level production rate of 37 Ar in natural xenon is estimated to be 0.024 atoms / kg / day . Assuming the xenon is successively purified to remove radioactive contaminants in 1-tonne batches at a rate of 1 tonne / month , the average 37 Ar activity after 10 tons are purified and transported underground is 0.058 − 0.090 μ Bq / kg , depending on the degree of argon removal during above-ground purification. Such cosmogenic 37 Ar will appear as a noticeable background in the early science data, while decaying with a 35-day half-life. This newly noticed production mechanism of 37 Ar should be considered when planning for future liquid-xenon-based experiments.

Published
2022

48. Scintillation yield from electronic and nuclear recoils in superfluid He 4

Author

Biekert, A, Biekert, A, Chang, C, Fink, CW, Garcia-Sciveres, M, Glazer, EC, Guo, W, Hertel, SA, Kravitz, S, Lin, J, Lisovenko, M, Mahapatra, R, McKinsey, DN, Nguyen, JS, Novosad, V, Page, W, Patel, PK, Penning, B, Pinckney, HD, Pyle, M, Romani, RK, Seilnacht, AS, Serafin, A, Smith, RJ, Sorensen, P, Suerfu, B, Suzuki, A, Velan, V, Wang, G, Watkins, SL, Yefremenko, VG, Yuan, L, Zhang, J, Biekert, A, Biekert, A, Chang, C, Fink, CW, Garcia-Sciveres, M, Glazer, EC, Guo, W, Hertel, SA, Kravitz, S, Lin, J, Lisovenko, M, Mahapatra, R, McKinsey, DN, Nguyen, JS, Novosad, V, Page, W, Patel, PK, Penning, B, Pinckney, HD, Pyle, M, Romani, RK, Seilnacht, AS, Serafin, A, Smith, RJ, Sorensen, P, Suerfu, B, Suzuki, A, Velan, V, Wang, G, Watkins, SL, Yefremenko, VG, Yuan, L, and Zhang, J

Abstract

Superfluid He4 is a promising target material for direct detection of light (<1 GeV) dark matter. Possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. The relative yield of these signals has implications for the sensitivity and discrimination power of a superfluid He4 dark matter detector. Using a 16 cm3 volume of 1.75 K superfluid He4 read out by six immersed photomultiplier tubes, we measured the scintillation from electronic recoils ranging between 36.3 and 185 keVee, yielding a mean signal size of 1.25-0.03+0.03 phe/keVee, and nuclear recoils from 53.2 to 1090 keVnr. We compare the results of our relative scintillation yield measurements to an existing semiempirical model based on helium-helium and electron-helium interaction cross sections. We also study the behavior of delayed scintillation components as a function of recoil type and energy, a further avenue for signal discrimination in superfluid He4.

Published
2022

49. The SABRE experiment

Author

Zani, A., primary, D’Angelo, D., additional, Vignoli, C., additional, Di Carlo, G., additional, Di Giacinto, A., additional, Ianni, A., additional, Orlandi, D., additional, Mariani, A., additional, Copello, S., additional, Tomei, C., additional, Dafinei, I., additional, D’Imperio, G., additional, Diemoz, M., additional, Iannone, M., additional, Milana, S., additional, Pettinacci, V., additional, Rahatlou, S., additional, Calaprice, F., additional, Di Ludovico, A., additional, Peloso, W., additional, Pietrofaccia, L., additional, Souza, M., additional, Suerfu, B., additional, Wada, M., additional, and Benziger, J., additional

Published
2022
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50. Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double β decays of 134Xe

Author

Akerib, DS, Al Musalhi, AK, Alsum, SK, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Bai, X, Balajthy, J, Balashov, S, Bang, J, Bargemann, JW, Bauer, D, Baxter, A, Beltrame, P, Bernard, EP, Bernstein, A, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Blockinger, GM, Bodnia, E, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Busenitz, JK, Buuck, M, Cabrita, R, Carmona-Benitez, MC, Cascella, M, Chan, C, Chott, NI, Cole, A, Converse, MV, Cottle, A, Cox, G, Creaner, O, Cutter, JE, Dahl, CE, de Viveiros, L, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fayer, S, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, T, Gaitskell, RJ, Genovesi, J, Ghag, C, Gibson, E, Gokhale, S, van der Grinten, MGD, Gwilliam, CB, Hall, CR, Haselschwardt, SJ, Hertel, SA, Horn, M, Huang, DQ, gnarra, MCI, Jahangir, O, James, RS, Ji, W, Johnson, J, Kaboth, AC, Kamaha, AC, Kamdin, K, Kazkaz, K, Khaitan, D, Khazov, A, Khurana, I, Kodroff, D, Korley, L, Korolkova, EV, Kraus, H, Kravitz, S, Kreczko, L, Krikler, B, Kudryavtsev, VA, Leason, EA, Lee, J, Leonard, DS, Lesko, KT, Levy, C, Liao, J, Lin, J, Lindote, A, Linehan, R, Lippincott, WH, Liu, X, Lopes, MI, López Asamar, E, López Paredes, B, Lorenzon, W, Luitz, S, Majewski, PA, Manalaysay, A, Manenti, L, Mannino, RL, Marangou, N, McCarthy, ME, McKinsey, DN, McLaughlin, J, Miller, EH, Mizrachi, E, Monte, A, Monzani, ME, Morad, JA, Morales Mendoza, JD, Morrison, E, Mount, BJ, Murphy, ASJ, Naim, D, Naylor, A, Nedlik, C, Nelson, HN, Neves, F, Nikoleyczik, JA, Nilima, A, Olcina, I, Oliver-Mallory, KC, Pal, S, Palladino, KJ, Palmer, J, Patton, S, Parveen, N, Pease, EK, Penning, B, Pereira, G, Piepke, A, Qie, Y, Reichenbacher, J, Rhyne, CA, Richards, A, Riffard, Q, Rischbieter, GRC, Rosero, R, Rossiter, P, Santone, D, Sazzad, ABMR, Schnee, RW, Scovell, PR, Shaw, S, Shutt, TA, Silk, JJ, Silva, C, Smith, R, Solmaz, M, Solovov, VN, Sorensen, P, Soria, J, Stancu, I, Stevens, A, Stifter, K, Suerfu, B, Sumner, TJ, Swanson, N, Szydagis, M, Taylor, WC, Taylor, R, Temples, DJ, Terman, PA, Tiedt, DR, Timalsina, M, To, WH, Tovey, DR, Tripathi, M, Tronstad, DR, Turner, W, Utku, U, Vaitkus, A, Wang, B, Wang, JJ, Wang, W, Watson, JR, Webb, RC, White, RG, Whitis, TJ, Williams, M, Wolfs, FLH, Woodward, D, Wright, CJ, Xiang, X, Xu, J, Yeh, M, and Zarzhitsky, P

Published
2021

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