Author: "Beattie, K." - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Beattie, K."' showing total 686 results

Start Over Author "Beattie, K."

686 results on '"Beattie, K."'

1. 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

2. 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

3. 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

4. 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
Full Text: View/download PDF

5. 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

6. The data acquisition system of the LZ dark matter detector: FADR

Author: Aalbers, J, Akerib, DS, Al Musalhi, AK, Alder, F, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Baker, A, Balashov, S, Bang, J, Barillier, EE, Bargemann, JW, Beattie, K, Benson, T, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Bishop, E, Blockinger, GM, Boxer, B, Brew, CAJ, Brás, P, Buckley, JH, Burdin, S, Buuck, M, Carmona-Benitez, MC, Carter, M, Chawla, A, Chen, H, Cherwinka, JJ, Chin, YT, Chott, NI, Converse, MV, Cottle, A, Cox, G, Curran, D, Dahl, CE, David, A, Delgaudio, J, Dey, S, de Viveiros, L, Di Felice, L, Dimino, T, Ding, C, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fearon, NM, Fieldhouse, N, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, TMA, Gaitskell, RJ, Geffre, A, Gelfand, R, Genovesi, J, Ghag, C, Gibbons, R, Gokhale, S, Green, J, van der Grinten, MGD, Haiston, JJ, Hall, CR, Han, S, Hartigan-O’Connor, E, Haselschwardt, SJ, Hernandez, MA, Hertel, SA, Heuermann, G, Homenides, GJ, Horn, M, Huang, DQ, Hunt, D, Jacquet, E, James, RS, Johnson, J, Kaboth, AC, Kamaha, AC, Kannichankandy, M, Khaitan, D, Khazov, A, Khurana, I, Kim, J, Kim, YD, Kingston, J, Kirk, R, Kodroff, D, Korley, L, Korolkova, EV, Koyuncu, M, Kraus, H, Kravitz, S, and Kreczko, L
Subjects: Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Networking and Information Technology R&D (NITRD), Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences, Nuclear & Particles Physics, Nuclear and plasma physics
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.
Published: 2024

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

Author: Aalbers, J, Akerib, DS, Al Musalhi, AK, Alder, F, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Baker, A, Balashov, S, Bang, J, Barillier, EE, Bargemann, JW, Baxter, A, Beattie, K, Benson, T, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Bishop, EJ, Blockinger, GM, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Buuck, M, Carmona-Benitez, MC, Carter, M, Chawla, A, Chen, H, Cherwinka, JJ, Chin, YT, Chott, NI, Converse, MV, Cottle, A, Cox, G, Curran, D, Dahl, CE, David, A, Delgaudio, J, Dey, S, de Viveiros, L, Di Felice, L, Ding, C, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, TMA, Gaitskell, RJ, Geffre, A, Genovesi, J, Ghag, C, Gibbons, R, Gokhale, S, Green, J, van der Grinten, MGD, Haiston, JH, Hall, CR, Han, S, Hartigan-O’Connor, E, Haselschwardt, SJ, Hernandez, MA, Hertel, SA, Heuermann, G, Homenides, GJ, Horn, M, Huang, DQ, Hunt, D, Ignarra, CM, Jacquet, E, James, RS, Johnson, J, Kaboth, AC, Kamaha, AC, Kannichankandy, M, Khaitan, D, Khazov, A, Khurana, I, Kim, J, Kingston, J, Kirk, R, Kodroff, D, Korley, L, Korolkova, EV, Kraus, H, Kravitz, S, Kreczko, L, Krikler, B, Kudryavtsev, VA, Lee, J, and Leonard, DS
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences
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/c2 to a few TeV/c2. 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 reanalysis of the first science run of the LZ experiment, with an exposure of 0.9 tonne×yr, 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 1017 GeV/c2.
Published: 2024

8. First constraints on WIMP-nucleon effective field theory couplings in an extended energy region from LUX-ZEPLIN

Author: Aalbers, J, Akerib, DS, Al Musalhi, AK, Alder, F, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Baker, A, Balashov, S, Bang, J, Bargemann, JW, Baxter, A, Beattie, K, Benson, T, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Bishop, E, Blockinger, GM, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Buuck, M, Carmona-Benitez, MC, Carter, M, Chawla, A, Chen, H, Cherwinka, JJ, Chott, NI, Converse, MV, Cottle, A, Cox, G, Curran, D, Dahl, CE, David, A, Delgaudio, J, Dey, S, de Viveiros, L, Ding, C, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, TMA, Gaitskell, RJ, Geffre, A, Genovesi, J, Ghag, C, Gibbons, R, Gokhale, S, Green, J, van der Grinten, MGD, Hall, CR, Han, S, Hartigan-O’Connor, E, Haselschwardt, SJ, Hernandez, MA, Hertel, SA, Heuermann, G, Homenides, GJ, Horn, M, Huang, DQ, Hunt, D, Ignarra, CM, Jacquet, E, James, RS, Johnson, J, Kaboth, AC, Kamaha, AC, Khaitan, D, Khazov, A, Khurana, I, Kim, J, Kingston, J, Kirk, R, Kodroff, D, Korley, L, Korolkova, EV, Kraus, H, Kravitz, S, Kreczko, L, Krikler, B, Kudryavtsev, VA, Lee, J, Leonard, DS, Lesko, KT, Levy, C, Lin, J, Lindote, A, and Linehan, R
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Affordable and Clean Energy
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 nonrelativistic 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 keV. 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 nonrelativistic WIMP-nucleon operator for both elastic and inelastic interactions in the isoscalar and isovector bases.
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
Full Text: View/download PDF

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
Full Text: View/download PDF

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
Full Text: View/download PDF

12. Search for new physics in low-energy electron recoils from the first LZ exposure

Author: Aalbers, J, Akerib, DS, Al Musalhi, AK, Alder, F, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Baker, A, Balashov, S, Bang, J, Bargemann, JW, Baxter, A, Beattie, K, Beltrame, P, Benson, T, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Blockinger, GM, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Buuck, M, Carmona-Benitez, MC, Chan, C, Chawla, A, Chen, H, Cherwinka, JJ, Chott, NI, Converse, MV, Cottle, A, Cox, G, Curran, D, Dahl, CE, David, A, Delgaudio, J, Dey, S, de Viveiros, L, Ding, C, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, TMA, Gaitskell, RJ, Geffre, A, Genovesi, J, Ghag, C, Gibbons, R, Gokhale, S, Green, J, van der Grinten, MGD, Hall, CR, Han, S, Hartigan-O’Connor, E, Haselschwardt, SJ, Huang, DQ, Hertel, SA, Heuermann, G, Horn, M, Hunt, D, Ignarra, CM, Jahangir, O, James, RS, Johnson, J, Kaboth, AC, Kamaha, AC, Khaitan, D, Khazov, A, Khurana, I, Kim, J, Kingston, J, Kirk, R, 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, Lin, J, Lindote, A, Linehan, R, and Lippincott, WH
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences
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 5.5 t. 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 axionlike 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.
Published: 2023

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

Author: Aalbers, J, Akerib, DS, Akerlof, CW, Al Musalhi, AK, Alder, F, Alqahtani, A, Alsum, SK, Amarasinghe, CS, Ames, A, Anderson, TJ, Angelides, N, Araújo, HM, Armstrong, JE, Arthurs, M, Azadi, S, Bailey, AJ, Baker, A, Balajthy, J, Balashov, S, Bang, J, Bargemann, JW, Barry, MJ, Barthel, J, Bauer, D, Baxter, A, Beattie, K, Belle, J, Beltrame, P, Bensinger, J, Benson, T, Bernard, EP, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Birrittella, B, Blockinger, GM, Boast, KE, Boxer, B, Bramante, R, Brew, CAJ, Brás, P, Buckley, JH, Bugaev, VV, Burdin, S, Busenitz, JK, Buuck, M, Cabrita, R, Carels, C, Carlsmith, DL, Carlson, B, Carmona-Benitez, MC, Cascella, M, Chan, C, Chawla, A, Chen, H, Cherwinka, JJ, Chott, NI, Cole, A, Coleman, J, Converse, MV, Cottle, A, Cox, G, Craddock, WW, Creaner, O, Curran, D, Currie, A, Cutter, JE, Dahl, CE, David, A, Davis, J, Davison, TJR, Delgaudio, J, Dey, S, de Viveiros, L, Dobi, A, Dobson, JEY, Druszkiewicz, E, Dushkin, A, Edberg, TK, Edwards, WR, Elnimr, MM, Emmet, WT, Eriksen, SR, Faham, CH, Fan, A, Fayer, S, Fearon, NM, Fiorucci, S, Flaecher, H, Ford, P, Francis, VB, Fraser, ED, Fruth, T, Gaitskell, RJ, Gantos, NJ, Garcia, D, Geffre, A, Gehman, VM, and Genovesi, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, LUX-ZEPLIN Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract: The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c^{2}. The most stringent limit is set for spin-independent scattering at 36 GeV/c^{2}, rejecting cross sections above 9.2×10^{-48} cm at the 90% confidence level.
Published: 2023

14. Background determination for the LUX-ZEPLIN dark matter 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, Baker, A, Bang, J, Bargemann, JW, Baxter, A, Beattie, K, Beltrame, P, Bernard, EP, Bhatti, A, Biekert, A, Biesiadzinski, TP, Birch, HJ, Blockinger, GM, Boxer, B, Brew, CAJ, Brás, P, Burdin, S, Buuck, M, Cabrita, R, Carmona-Benitez, MC, Chan, C, Chawla, A, Chen, H, Chiang, APS, Chott, NI, Converse, MV, Cottle, A, Cox, G, Creaner, O, Dahl, CE, David, A, Dey, S, de Viveiros, L, Ding, C, Dobson, JEY, Druszkiewicz, E, Eriksen, SR, Fan, A, Fearon, NM, Fiorucci, S, Flaecher, H, Fraser, ED, Fruth, T, Gaitskell, RJ, Genovesi, J, Ghag, C, Gibbons, R, Gilchriese, MGD, Gokhale, S, Green, J, van der Grinten, MGD, Gwilliam, CB, Hall, CR, Han, S, Hartigan-O’Connor, E, Haselschwardt, SJ, Hertel, SA, Heuermann, G, Horn, M, Huang, DQ, Hunt, D, Ignarra, CM, Jacobsen, RG, Jahangir, O, James, RS, Johnson, J, Kaboth, AC, Kamaha, AC, Khaitan, D, Khurana, I, Kirk, R, 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, Lin, J, Lindote, A, Linehan, R, Lippincott, WH, and Liu, X
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences
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

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
Full Text: View/download PDF

16. A next-generation liquid xenon observatory for dark matter and neutrino physics

Author: Aalbers, J, AbdusSalam, SS, Abe, K, Aerne, V, Agostini, F, Maouloud, S Ahmed, Akerib, DS, Akimov, DY, Akshat, J, Al Musalhi, AK, Alder, F, Alsum, SK, Althueser, L, Amarasinghe, CS, Amaro, FD, Ames, A, Anderson, TJ, Andrieu, B, Angelides, N, Angelino, E, Angevaare, J, Antochi, VC, Martin, D Antón, Antunovic, B, Aprile, E, Araújo, HM, Armstrong, JE, 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, JW, Baudis, L, Bauer, D, Baur, D, Baxter, A, Baxter, AL, Bazyk, M, Beattie, K, Behrens, J, Bell, NF, Bellagamba, L, Beltrame, P, Benabderrahmane, M, Bernard, EP, Bertone, GF, Bhattacharjee, P, Bhatti, A, Biekert, A, Biesiadzinski, TP, Binau, AR, Biondi, R, Biondi, Y, Birch, HJ, Bishara, F, Bismark, A, Blanco, C, Blockinger, GM, Bodnia, E, Boehm, C, Bolozdynya, AI, Bolton, PD, Bottaro, S, Bourgeois, C, Boxer, B, Brás, P, Breskin, A, Breur, PA, Brew, CAJ, Brod, J, Brookes, E, Brown, A, Brown, E, Bruenner, S, Bruno, G, Budnik, R, Bui, TK, Burdin, S, Buse, S, Busenitz, JK, Buttazzo, D, Buuck, M, Buzulutskov, A, Cabrita, R, Cai, C, Cai, D, Capelli, C, Cardoso, JMR, Carmona-Benitez, MC, Cascella, M, and Catena, R
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, dark matter, neutrinoless double-beta decay, neutrinos, supernova, direct detection, astroparticle physics, xenon, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Nuclear and plasma physics, Particle and high energy physics
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

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
Full Text: View/download PDF

18. 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
Full Text: View/download PDF

19. 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
Full Text: View/download PDF

20. Cosmogenic production of Ar37 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, and Linehan, R
Subjects: Nuclear and Plasma Physics, Physical Sciences
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

21. 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, DS, Akimov, D Yu, Akshat, J, Musalhi, AK Al, Alder, F, Alsum, SK, Althueser, L, Amarasinghe, CS, Amaro, FD, Ames, A, Anderson, TJ, Andrieu, B, Angelides, N, Angelino, E, Angevaare, J, Antochi, VC, Martin, D Antón, Antunovic, B, Aprile, E, Araújo, HM, Armstrong, JE, 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, JW, Baudis, L, Bauer, D, Baur, D, Baxter, A, Baxter, AL, Bazyk, M, Beattie, K, Behrens, J, Bell, NF, Bellagamba, L, Beltrame, P, Benabderrahmane, M, Bernard, EP, Bertone, GF, Bhattacharjee, P, Bhatti, A, Biekert, A, Biesiadzinski, TP, Binau, AR, Biondi, R, Biondi, Y, Birch, HJ, Bishara, F, Bismark, A, Blanco, C, Blockinger, GM, Bodnia, E, Boehm, C, Bolozdynya, AI, Bolton, PD, Bottaro, S, Bourgeois, C, Boxer, B, Brás, P, Breskin, A, Breur, PA, Brew, CAJ, Brod, J, Brookes, E, Brown, A, Brown, E, Bruenner, S, Bruno, G, Budnik, R, Bui, TK, Burdin, S, Buse, S, Busenitz, JK, Buttazzo, D, Buuck, M, Buzulutskov, A, Cabrita, R, Cai, C, Cai, D, Capelli, C, Cardoso, JMR, Carmona-Benitez, MC, Cascella, M, Catena, R, and Chakraborty, S
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, physics.ins-det, astro-ph.CO, hep-ex, nucl-ex
Abstract: The nature of dark matter and properties of neutrinos are among the mostpressing issues in contemporary particle physics. The dual-phase xenontime-projection chamber is the leading technology to cover the availableparameter space for Weakly Interacting Massive Particles (WIMPs), whilefeaturing extensive sensitivity to many alternative dark matter candidates.These detectors can also study neutrinos through neutrinoless double-beta decayand through a variety of astrophysical sources. A next-generation xenon-baseddetector will therefore be a true multi-purpose observatory to significantlyadvance particle physics, nuclear physics, astrophysics, solar physics, andcosmology. This review article presents the science cases for such a detector.
Published: 2022

22. Descriptive analysis of the changes in Johne's disease management practices on Ontario dairy farms through repeat risk assessment

Author: Imada, J.B., Roche, S.M., Bauman, C.A., Miltenburg, S., Budd, R., Beattie, K., and Kelton, D.F.
Published: 2022
Full Text: View/download PDF

23. The IceCube Neutrino Observatory: Instrumentation and Online Systems

Author: IceCube Collaboration, Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Archinger, M., Argüelles, C., Auer, R., Auffenberg, J., Axani, S., Baccus, J., Bai, X., Barnet, S., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Tjus, J. Becker, Becker, K. -H., Bendfelt, T., BenZvi, S., Berley, D., Bernardini, E., Bernhard, A., Besson, D. Z., Binder, G., Bindig, D., Bissok, M., Blaufuss, E., Blot, S., Boersma, D., Bohm, C., Börner, M., Bos, F., Bose, D., Böser, S., Botner, O., Bouchta, A., Braun, J., Brayeur, L., Bretz, H. -P., Bron, S., Burgman, A., Burreson, C., Carver, T., Casier, M., Cheung, E., Chirkin, D., Christov, A., Clark, K., Classen, L., Coenders, S., Collin, G. H., Conrad, J. M., Cowen, D. F., Cross, R., Day, C., Day, M., de André, J. P. A. M., De Clercq, C., Rosendo, E. del Pino, Dembinski, H., De Ridder, S., Descamps, F., Desiati, P., de Vries, K. D., de Wasseige, G., de With, M., DeYoung, T., Díaz-Vélez, J. C., di Lorenzo, V., Dujmovic, H., Dumm, J. P., Dunkman, M., Eberhardt, B., Edwards, W. R., Ehrhardt, T., Eichmann, B., Eller, P., Euler, S., Evenson, P. A., Fahey, S., Fazely, A. R., Feintzeig, J., Felde, J., Filimonov, K., Finley, C., Flis, S., Fösig, C. -C., Franckowiak, A., Frère, M., Friedman, E., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Ghorbani, K., Giang, W., Gladstone, L., Glauch, T., Glowacki, D., Glüsenkamp, T., Goldschmidt, A., Gonzalez, J. G., Grant, D., Griffith, Z., Gustafsson, L., Haack, C., Hallgren, A., Halzen, F., Hansen, E., Hansmann, T., Hanson, K., Haugen, J., Hebecker, D., Heereman, D., Helbing, K., Hellauer, R., Heller, R., Hickford, S., Hignight, J., Hill, G. C., Hoffman, K. D., Hoffmann, R., Hoshina, K., Huang, F., Huber, M., Hulth, P. O., Hultqvist, K., In, S., Inaba, M., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jeong, M., Jero, K., Jones, A., Jones, B. J. P., Joseph, J., Kang, W., Kappes, A., Karg, T., Karle, A., Katz, U., Kauer, M., Keivani, A., Kelley, J. L., Kemp, J., Kheirandish, A., Kim, J., Kim, M., Kintscher, T., Kiryluk, J., Kitamura, N., Kittler, T., Klein, S. R., Kleinfelder, S., Kleist, M., Kohnen, G., Koirala, R., Kolanoski, H., Konietz, R., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Krings, K., Kroll, M., Krückl, G., Krüger, C., Kunnen, J., Kunwar, S., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Lanfranchi, J. L., Larson, M. J., Lauber, F., Laundrie, A., Lennarz, D., Leich, H., Lesiak-Bzdak, M., Leuermann, M., Lu, L., Ludwig, J., Lünemann, J., Mackenzie, C., Madsen, J., Maggi, G., Mahn, K. B. M., Mancina, S., Mandelartz, M., Maruyama, R., Mase, K., Matis, H., Maunu, R., McNally, F., McParland, C. P., Meade, P., Meagher, K., Medici, M., Meier, M., Meli, A., Menne, T., Merino, G., Meures, T., Miarecki, S., Minor, R. H., Montaruli, T., Moulai, M., Murray, T., Nahnhauer, R., Naumann, U., Neer, G., Newcomb, M., Niederhausen, H., Nowicki, S. C., Nygren, D. R., Pollmann, A. Obertacke, Olivas, A., O'Murchadha, A., Palczewski, T., Pandya, H., Pankova, D. V., Patton, S., Peiffer, P., Penek, Ö., Pepper, J. A., Heros, C. Pérez de los, Pettersen, C., Pieloth, D., Pinat, E., Price, P. B., Przybylski, G. T., Quinnan, M., Raab, C., Rädel, L., Rameez, M., Rawlins, K., Reimann, R., Relethford, B., Relich, M., Resconi, E., Rhode, W., Richman, M., Riedel, B., Robertson, S., Rongen, M., Roucelle, C., Rott, C., Ruhe, T., Ryckbosch, D., Rysewyk, D., Sabbatini, L., Herrera, S. E. Sanchez, Sandrock, A., Sandroos, J., Sandstrom, P., Sarkar, S., Satalecka, K., Schlunder, P., Schmidt, T., Schoenen, S., Schöneberg, S., Schukraft, A., Schumacher, L., Seckel, D., Seunarine, S., Solarz, M., Soldin, D., Song, M., Spiczak, G. M., Spiering, C., Stanev, T., Stasik, A., Stettner, J., Steuer, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Ström, R., Strotjohann, N. L., Sulanke, K. -H., Sullivan, G. W., Sutherland, M., Taavola, H., Taboada, I., Tatar, J., Tenholt, F., Ter-Antonyan, S., Terliuk, A., Tešić, G., Thollander, L., Tilav, S., Toale, P. A., Tobin, M. N., Toscano, S., Tosi, D., Tselengidou, M., Turcati, A., Unger, E., Usner, M., Vandenbroucke, J., van Eijndhoven, N., Vanheule, S., van Rossem, M., van Santen, J., Vehring, M., Voge, M., Vogel, E., Vraeghe, M., Wahl, D., Walck, C., Wallace, A., Wallraff, M., Wandkowsky, N., Weaver, Ch., Weiss, M. J., Wendt, C., Westerhoff, S., Wharton, D., Whelan, B. J., Wickmann, S., Wiebe, K., Wiebusch, C. H., Wille, L., Williams, D. R., Wills, L., Wisniewski, P., Wolf, M., Wood, T. R., Woolsey, E., Woschnagg, K., Xu, D. L., Xu, X. W., Xu, Y., Yanez, J. P., Yodh, G., Yoshida, S., and Zoll, M.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: The IceCube Neutrino Observatory is a cubic-kilometer-scale high-energy neutrino detector built into the ice at the South Pole. Construction of IceCube, the largest neutrino detector built to date, was completed in 2011 and enabled the discovery of high-energy astrophysical neutrinos. We describe here the design, production, and calibration of the IceCube digital optical module (DOM), the cable systems, computing hardware, and our methodology for drilling and deployment. We also describe the online triggering and data filtering systems that select candidate neutrino and cosmic ray events for analysis. Due to a rigorous pre-deployment protocol, 98.4% of the DOMs in the deep ice are operating and collecting data. IceCube routinely achieves a detector uptime of 99% by emphasizing software stability and monitoring. Detector operations have been stable since construction was completed, and the detector is expected to operate at least until the end of the next decade., Comment: 82 pages, 50 figures; fix minor error in eq. 3.9 (time calibration cable delay)
Published: 2016
Full Text: View/download PDF

24. A73 EVALUATING MENTAL HEALTH CONDITIONS IN YOUTH WITH INFLAMMATORY BOWEL DISEASE: A RETROSPECTIVE STUDY

Author: Beaudoin, K, primary, Mewhinney, E, additional, Lo, J, additional, Halder, S, additional, Bortolin, K, additional, Dowhaniuk, J, additional, Issenman, R, additional, Pai, N, additional, Sherlock, M, additional, Zachos, M, additional, Grant, C, additional, Beattie, K, additional, and Prowse, K, additional
Published: 2024
Full Text: View/download PDF

25. The IceCube Neutrino Observatory: Instrumentation and online systems

Author: Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, M, Ahrens, M, Altmann, D, Andeen, K, Anderson, T, Ansseau, I, Anton, G, Archinger, M, Argüelles, C, Auer, R, Auffenberg, J, Axani, S, Baccus, J, Bai, X, Barnet, S, Barwick, SW, Baum, V, Bay, R, Beattie, K, Beatty, JJ, Tjus, JB, Becker, KH, Bendfelt, T, Benzvi, S, Berley, D, Bernardini, E, Bernhard, A, Besson, DZ, Binder, G, Bindig, D, Bissok, M, Blaufuss, E, Blot, S, Boersma, D, Bohm, C, Börner, M, Bos, F, Bose, D, Böser, S, Botner, O, Bouchta, A, Braun, J, Brayeur, L, Bretz, HP, Bron, S, Burgman, A, Burreson, C, Carver, T, Casier, M, Cheung, E, Chirkin, D, Christov, A, Clark, K, Classen, L, Coenders, S, Collin, GH, Conrad, JM, Cowen, DF, Cross, R, Day, C, Day, M, De André, JPAM, Clercq, CD, Rosendo, EDP, Dembinski, H, Ridder, SD, Descamps, F, Desiati, P, De Vries, KD, De Wasseige, G, De With, M, DeYoung, T, Díaz-Vélez, JC, Di Lorenzo, V, Dujmovic, H, Dumm, JP, Dunkman, M, Eberhardt, B, Edwards, WR, Ehrhardt, T, Eichmann, B, Eller, P, Euler, S, Evenson, PA, Fahey, S, Fazely, AR, Feintzeig, J, Felde, J, Filimonov, K, Finley, C, Flis, S, Fösig, CC, Franckowiak, A, Frère, M, Friedman, E, and Fuchs, T
Subjects: Large detector systems for particle and astroparticle physics, Neutrino detectors, Online farms and online filtering, Trigger concepts and systems, astro-ph.IM, physics.ins-det, Nuclear & Particles Physics, Other Physical Sciences, Physical Sciences, Engineering
Abstract: The IceCube Neutrino Observatory is a cubic-kilometer-scale high-energy neutrino detector built into the ice at the South Pole. Construction of IceCube, the largest neutrino detector built to date, was completed in 2011 and enabled the discovery of high-energy astrophysical neutrinos. We describe here the design, production, and calibration of the IceCube digital optical module (DOM), the cable systems, computing hardware, and our methodology for drilling and deployment. We also describe the online triggering and data filtering systems that select candidate neutrino and cosmic ray events for analysis. Due to a rigorous pre-deployment protocol, 98.4% of the DOMs in the deep ice are operating and collecting data. IceCube routinely achieves a detector uptime of 99% by emphasizing software stability and monitoring. Detector operations have been stable since construction was completed, and the detector is expected to operate at least until the end of the next decade.
Published: 2017

26. Making advanced scientific algorithms and big scientific data management more accessible

Author: Venkatakrishnan, SV, Mohan, KA, Beattie, K, Correa, J, Dart, E, Deslippe, JR, Hexemer, A, Krishnan, H, MacDowell, AA, Marchesini, S, Patton, SJ, Perciano, T, Sethian, JA, Stromsness, R, Tierney, BL, Tull, CE, Ushizima, D, and Parkinson, DY
Abstract: Synchrotrons such as the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory are user facilities - they are sources of extremely bright X-ray beams, and scientists come from all over the world to perform experiments that require these beams. As the complexity of experiments has increased, and the size and rates of data sets has exploded, managing, analyzing and presenting the data collected at synchrotrons has been an increasing challenge. The ALS has partnered with high performance computing, fast networking, and applied mathematics groups to create a"super-facility", giving users simultaneous access to the experimental, computational, and algorithmic resources to overcome this challenge. This combination forms an efficient closed loop, where data despite its high rate and volume is transferred and processed, in many cases immediately and automatically, on appropriate compute resources, and results are extracted, visualized, and presented to users or to the experimental control system, both to provide immediate insight and to guide decisions about subsequent experiments during beam-time. In this paper, We will present work done on advanced tomographic reconstruction algorithms to support users of the 3D micron-scale imaging instrument (Beamline 8.3.2, hard X-ray micro-tomography).
Published: 2016

27. Measurement of the Atmospheric $\nu_e$ flux in IceCube

Author: IceCube Collaboration, Aartsen, M. G., Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohaichuk, S., Bohm, C., Bose1, D., Boser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clark, K., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., De Ridder, S., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Diaz-Velez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eberhardt, B., Eisch, J., Ellsworth, R. W., Engdegard, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glusenkamp, T., Goldschmidt, A., Golup, G., Goodman, J. A., Gora, D., Grant, D., Gross, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Klas, J., Klein, S. R., Kohne, J. -H., Kohnen, G., Kolanoski, H., Kopke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lunemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Meszaros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Perez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Radel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schoneberg, S., Schonherr, L., Schonwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Sheremata, C., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stoss, A., Strahler, E. A., Strom, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge1, M., Vraeghe, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zierke, S., Zilles, A., and Zoll, M.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report the first measurement of the atmospheric electron neutrino flux in the energy range between approximately 80 GeV and 6 TeV, using data recorded during the first year of operation of IceCube's DeepCore low energy extension. Techniques to identify neutrinos interacting within the DeepCore volume and veto muons originating outside the detector are demonstrated. A sample of 1029 events is observed in 281 days of data, of which 496 $\pm$ 66(stat.) $\pm$ 88(syst.) are estimated to be cascade events, including both electron neutrino and neutral current events. The rest of the sample includes residual backgrounds due to atmospheric muons and charged current interactions of atmospheric muon neutrinos. The flux of the atmospheric electron neutrinos is consistent with models of atmospheric neutrinos in this energy range. This constitutes the first observation of electron neutrinos and neutral current interactions in a very large volume neutrino telescope optimized for the TeV energy range., Comment: 7 pages, 4 figures (accepted by PRL)
Published: 2012
Full Text: View/download PDF

28. Search for dark matter annihilations in the Sun with the 79-string IceCube detector

Author: IceCube collaboration, Aartsen, M. G., Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohaichuk, S., Bohm, C., Bose1, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clark, K., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., De Ridder, S., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eberhardt, B., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Golup, G., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Sheremata, C., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stöß, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge1, M., Vraeghe, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zierke, S., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We have performed a search for muon neutrinos from dark matter annihilation in the center of the Sun with the 79-string configuration of the IceCube neutrino telescope. For the first time, the DeepCore sub-array is included in the analysis, lowering the energy threshold and extending the search to the austral summer. The 317 days of data collected between June 2010 and May 2011 are consistent with the expected background from atmospheric muons and neutrinos. Upper limits are therefore set on the dark matter annihilation rate, with conversions to limits on spin-dependent and spin-independent WIMP-proton cross-sections for WIMP masses in the range 20 - 5000 GeV. These are the most stringent spin-dependent WIMP-proton cross-sections limits to date above 35 GeV., Comment: 7 pages, 3 figues
Published: 2012
Full Text: View/download PDF

29. Search for Galactic PeV Gamma Rays with the IceCube Neutrino Observatory

Author: IceCube collaboration, Aartsen, M. G., Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohaichuk, S., Bohm, C., Bose1, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clark, K., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., De Ridder, S., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eberhardt, B., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Golup, G., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Sheremata, C., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stöß, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge1, M., Vraeghe, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zierke, S., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Gamma-ray induced air showers are notable for their lack of muons, compared to hadronic showers. Hence, air shower arrays with large underground muon detectors can select a sample greatly enriched in photon showers by rejecting showers containing muons. IceCube is sensitive to muons with energies above ~500 GeV at the surface, which provides an efficient veto system for hadronic air showers with energies above 1 PeV. One year of data from the 40-string IceCube configuration was used to perform a search for point sources and a Galactic diffuse signal. No sources were found, resulting in a 90% C.L. upper limit on the ratio of gamma rays to cosmic rays of 1.2 x 10^(-3)for the flux coming from the Galactic Plane region (-80 deg < l < -30 deg; -10 deg < b < 5 deg) in the energy range 1.2 - 6.0 PeV. In the same energy range, point source fluxes with E^(-2) spectra have been excluded at a level of (E/TeV)^2 d\Phi/dE ~ 10^(-12)-10^(-11) cm^2/s/TeV depending on source declination. The complete IceCube detector will have a better sensitivity, due to the larger detector size, improved reconstruction and vetoing techniques. Preliminary data from the nearly-final IceCube detector configuration has been used to estimate the 5 year sensitivity of the full detector. It is found to be more than an order of magnitude better, allowing the search for PeV extensions of known TeV gamma-ray emitters., Comment: submitted to PRD, 15 pages, 15 figures
Published: 2012
Full Text: View/download PDF

30. Observation of Cosmic Ray Anisotropy with the IceTop Air Shower Array

Author: IceCube Collaboration, Aartsen, M. G., Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohaichuk, S., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clark, K., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cru., Danninger, M., Daughhetee, J., Davis, J. C., Clercq, C. D., Ridder, S. D., Descamps, F., Desiati, P., Vries-Uiterweerd, G. d., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Golup, G., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Ha., Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Sheremata, C., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., Drift, D. va. de., Eijndhoven, N. va., Overloop, A. Va., Santen, J. va., Vehring, M., Voge, M., Vraeghe, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zierke, S., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report on the observation of anisotropy in the arrival direction distribution of cosmic rays at PeV energies. The analysis is based on data taken between 2009 and 2012 with the IceTop air shower array at the South Pole. IceTop, an integral part of the IceCube detector, is sensitive to cosmic rays between 100 TeV and 1 EeV. With the current size of the IceTop data set, searches for anisotropy at the 10^-3 level can, for the first time, be extended to PeV energies. We divide the data set into two parts with median energies of 400 TeV and 2 PeV, respectively. In the low energy band, we observe a strong deficit with an angular size of about 30 degrees and an amplitude of (-1.58 +/- 0.46 (stat) +/- 0.52 (sys)) x 10^(-3) at a location consistent with previous observations of cosmic rays with the IceCube neutrino detector. The study of the high energy band shows that the anisotropy persists to PeV energies and increases in amplitude to (-3.11 +/- 0.38 (stat) +/- 0.96 (sys)) x 10^(-3)., Comment: Accepted for publication in ApJ. Supplemental information available in the source file of the paper
Published: 2012
Full Text: View/download PDF

31. Search for Neutrinos from Annihilating Dark Matter in the Direction of the Galactic Center with the 40-String IceCube Neutrino Observatory

Author: The IceCube collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., Uiterweerd, G. de Vries, DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Hülß, J. -P., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract: A search for muon neutrinos from dark matter annihilations in the Galactic Center region has been performed with the 40-string configuration of the IceCube Neutrino Observatory using data collected in 367 days of live-time starting in April 2008. The observed fluxes were consistent with the atmospheric background expectations. Upper limits on the self-annihilation cross-section are obtained for dark matter particle masses ranging from 100 GeV to 10 TeV. In the case of decaying dark matter, lower limits on the lifetime have been determined for masses between 200 GeV and 20 TeV., Comment: 11 pages, 13 figures. An error in the limit calculation code has been corrected, which lead to too constraining limits. This error impacted figures 9, 10, 11, 12 and 13
Published: 2012

32. Searches for high-energy neutrino emission in the Galaxy with the combined IceCube-AMANDA detector

Author: IceCube collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., Uiterweerd, G. de Vries, DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report on searches for neutrino sources at energies above 200 GeV in the Northern sky of the galactic plane, using the data collected by the South Pole neutrino telescopes IceCube and AMANDA. The galactic region considered here includes the Local Arm towards the Cygnus region and our closest approach to the Perseus Arm. The data have been collected between 2007 and 2009 when AMANDA was an integrated part of IceCube, which was still under construction and operated with 22-strings (2007-8) and 40-strings (2008-9) of optical modules deployed in the ice. By combining the larger IceCube detector with the lower energy threshold of the more compact AMANDA detector, we obtain an improved sensitivity at energies below $\sim$10 TeV with respect to previous searches. The analyses presented here are: a scan for point sources within the galactic plane; a search optimized for multiple and extended sources in the Cygnus region, which might be below the sensitivity of the point source scan; and studies of seven pre-selected neutrino source candidates. For one of them, Cygnus X-3, a time-dependent search for neutrinos in coincidence with observed radio and X-ray flares has been performed. No evidence of a signal is found, and upper limits are reported for each of the searches. We investigate neutrino spectra proportional to E$^{-2}$ and E$^{-3}$ to cover the entire range of possible spectra. The soft E$^{-3}$ spectrum results in an energy distribution similar to a source with cut-off below $\sim$50 TeV. For the considered region of the galactic plane, the 90% confidence level muon neutrino flux upper limits are in the range E$^3$dN/dE$\sim 5.4 - 19.5 \times 10^{-11} \rm{TeV^{2} cm^{-2} s^{-1}}$ for point-like neutrino sources in the energy region [180.0 GeV - 20.5 TeV]. These represent the most stringent upper limits for soft-spectra neutrino sources within the Galaxy reported to date.
Published: 2012
Full Text: View/download PDF

33. Search for Relativistic Magnetic Monopoles with IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the first results in the search for relativistic magnetic monopoles with the IceCube detector, a subsurface neutrino telescope located in the South Polar ice cap containing a volume of 1 km$^{3}$. This analysis searches data taken on the partially completed detector during 2007 when roughly 0.2 km$^{3}$ of ice was instrumented. The lack of candidate events leads to an upper limit on the flux of relativistic magnetic monopoles of $\Phi_{\mathrm{90%C.L.}}\sim 3\e{-18}\fluxunits$ for $\beta\geq0.8$. This is a factor of 4 improvement over the previous best experimental flux limits up to a Lorentz boost $\gamma$ below $10^{7}$. This result is then interpreted for a wide range of mass and kinetic energy values., Comment: 11 pages, 11 figures. v2 is minor text edits, no changes to result
Published: 2012
Full Text: View/download PDF

34. An improved method for measuring muon energy using the truncated mean of dE/dx

Author: IceCube collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Elliott, C., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Klepser, S., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McDermott, A., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nießen, P., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Roth, J., Rothmaier, F., Rott, C., Roucelle, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Shulman, L., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Stoyanov, S., Strahler, E. A., Ström, R., Sulanke, K-H., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Physics - Data Analysis, Statistics and Probability, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The measurement of muon energy is critical for many analyses in large Cherenkov detectors, particularly those that involve separating extraterrestrial neutrinos from the atmospheric neutrino background. Muon energy has traditionally been determined by measuring the specific energy loss (dE/dx) along the muon's path and relating the dE/dx to the muon energy. Because high-energy muons (E_mu > 1 TeV) lose energy randomly, the spread in dE/dx values is quite large, leading to a typical energy resolution of 0.29 in log10(E_mu) for a muon observed over a 1 km path length in the IceCube detector. In this paper, we present an improved method that uses a truncated mean and other techniques to determine the muon energy. The muon track is divided into separate segments with individual dE/dx values. The elimination of segments with the highest dE/dx results in an overall dE/dx that is more closely correlated to the muon energy. This method results in an energy resolution of 0.22 in log10(E_mu), which gives a 26% improvement. This technique is applicable to any large water or ice detector and potentially to large scintillator or liquid argon detectors., Comment: 12 pages, 16 figures
Published: 2012
Full Text: View/download PDF

35. Lateral Distribution of Muons in IceCube Cosmic Ray Events

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Elliott, C., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Klepser, S., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McDermott, A., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nießen, P., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Roth, J., Rothmaier, F., Rott, C., Roucelle, C., Ruhe, T., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Shulman, L., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Stoyanov, S., Strahler, E. A., Ström, R., Sulanke, K-H., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: In cosmic ray air showers, the muon lateral separation from the center of the shower is a measure of the transverse momentum that the muon parent acquired in the cosmic ray interaction. IceCube has observed cosmic ray interactions that produce muons laterally separated by up to 400 m from the shower core, a factor of 6 larger distance than previous measurements. These muons originate in high pT (> 2 GeV/c) interactions from the incident cosmic ray, or high-energy secondary interactions. The separation distribution shows a transition to a power law at large values, indicating the presence of a hard pT component that can be described by perturbative quantum chromodynamics. However, the rates and the zenith angle distributions of these events are not well reproduced with the cosmic ray models tested here, even those that include charm interactions. This discrepancy may be explained by a larger fraction of kaons and charmed particles than is currently incorporated in the simulations.
Published: 2012
Full Text: View/download PDF

36. IceTop: The surface component of IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Caballero-Mora, K. S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Elliott, C., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Klepser, S., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McDermott, A., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nießen, P., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Roth, J., Rothmaier, F., Rott, C., Roucelle, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Shulman, L., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Stoyanov, S., Strahler, E. A., Ström, R., Sulanke, K-H., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van der Drift, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: IceTop, the surface component of the IceCube Neutrino Observatory at the South Pole, is an air shower array with an area of 1 km2. The detector allows a detailed exploration of the mass composition of primary cosmic rays in the energy range from about 100 TeV to 1 EeV by exploiting the correlation between the shower energy measured in IceTop and the energy deposited by muons in the deep ice. In this paper we report on the technical design, construction and installation, the trigger and data acquisition systems as well as the software framework for calibration, reconstruction and simulation. Finally the first experience from commissioning and operating the detector and the performance as an air shower detector will be discussed., Comment: 50 pages, 38 figures; submitted to NIM A
Published: 2012
Full Text: View/download PDF

37. Cosmic Ray Composition and Energy Spectrum from 1-30 PeV Using the 40-String Configuration of IceTop and IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Caballero-Mora, K. S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van Eijndhoven, N., van der Drift, D., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The mass composition of high energy cosmic rays depends on their production, acceleration, and propagation. The study of cosmic ray composition can therefore reveal hints of the origin of these particles. At the South Pole, the IceCube Neutrino Observatory is capable of measuring two components of cosmic ray air showers in coincidence: the electromagnetic component at high altitude (2835 m) using the IceTop surface array, and the muonic component above ~1 TeV using the IceCube array. This unique detector arrangement provides an opportunity for precision measurements of the cosmic ray energy spectrum and composition in the region of the knee and beyond. We present the results of a neural network analysis technique to study the cosmic ray composition and the energy spectrum from 1 PeV to 30 PeV using data recorded using the 40-string/40-station configuration of the IceCube Neutrino Observatory., Comment: 33 pages; accepted to Astroparticle Physics
Published: 2012
Full Text: View/download PDF

38. Use of event-level neutrino telescope data in global fits for theories of new physics

Author: Scott, P., Savage, C., Edsjö, J., Collaboration, the IceCube, Abbasi, R., Abdou, Y., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Tjus, J. Becker, Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Bruijn, R., Brunner, J., Buitink, S., Caballero-Mora, K. S., Carson, M., Casey, J., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eagan, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Frantzen, K., Fuchs, T., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, R., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Jlelati, O., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Kläs, J., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, C., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lesiak-Bzdak, M., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., McNally, F., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Mohrmann, L., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Naumann, U., Nowicki, S. C., Nygren, D. R., Obertacke, A., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Pepper, J. A., Heros, C. Pérez de los, Pieloth, D., Pirk, N., Posselt, J., Price, P. B., Przybylski, G. T., Rädel, L., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Saba, S. M., Salameh, T., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Scheriau, F., Schmidt, T., Schmitz, M., Schoenen, S., Schöneberg, S., Schönherr, L., Schönwald, A., Schukraft, A., Schulte, L., Schulz, O., Seckel, D., Seo, S. H., Sestayo, Y., Seunarine, S., Smith, M. W. E., Soiron, M., Soldin, D., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stasik, A., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Usner, M., van Eijndhoven, N., van der Drift, D., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Ziemann, J., Zilles, A., and Zoll, M.
Subjects: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment, Physics - Data Analysis, Statistics and Probability
Abstract: We present a fast likelihood method for including event-level neutrino telescope data in parameter explorations of theories for new physics, and announce its public release as part of DarkSUSY 5.0.6. Our construction includes both angular and spectral information about neutrino events, as well as their total number. We also present a corresponding measure for simple model exclusion, which can be used for single models without reference to the rest of a parameter space. We perform a number of supersymmetric parameter scans with IceCube data to illustrate the utility of the method: example global fits and a signal recovery in the constrained minimal supersymmetric standard model (CMSSM), and a model exclusion exercise in a 7-parameter phenomenological version of the MSSM. The final IceCube detector configuration will probe almost the entire focus-point region of the CMSSM, as well as a number of MSSM-7 models that will not otherwise be accessible to e.g. direct detection. Our method accurately recovers the mock signal, and provides tight constraints on model parameters and derived quantities. We show that the inclusion of spectral information significantly improves the accuracy of the recovery, providing motivation for its use in future IceCube analyses., Comment: 29 pages, 6 figures. v2 adds additional explanation in p-value derivation, matches version accepted for publication in JCAP
Published: 2012
Full Text: View/download PDF

39. An Absence of Neutrinos Associated with Cosmic Ray Acceleration in Gamma-Ray Bursts

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Besson, D. Bertrand D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heereman, D., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülβ, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nowicki, S. C., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Piegsa, A., Pieloth, D., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rizzo, A., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schöneberg, S., Schönwald, A., Schukraft, A., Schulte, L., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Smith, M. W. E., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Gamma-Ray Bursts (GRBs) have been proposed as a leading candidate for acceleration of ultra high-energy cosmic rays, which would be accompanied by emission of TeV neutrinos produced in proton-photon interactions during acceleration in the GRB fireball. Two analyses using data from two years of the IceCube detector produced no evidence for this neutrino emission, placing strong constraints on models of neutrino and cosmic-ray production in these sources., Comment: 6 pages, 4 figures. Additional supplementary information (effective areas) is freely available with the published version. Version 2 supersedes the published version and fixes a small overestimation of the event rate from the Guetta et al. model in the 2010-2011 part of the model-dependent analysis, resulting in a new Fig. 1. Conclusions and all final results are unchanged.
Published: 2012
Full Text: View/download PDF

40. A Search for UHE Tau Neutrinos with IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose1, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Hanson, K., Heereman, D., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare1, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nowicki, S. C., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin1, S., Paul, L., Heros, C. Pérez de los, Pieloth, D., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Schmidt, T., Schöneberg, S., Schönwald, A., Schukraft, A., Schulte1, L., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine1, S., Silvestri, A., Smith, M. W. E., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge1, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment
Abstract: The first dedicated search for ultra-high energy (UHE) tau neutrinos of astrophysical origin was performed using the IceCube detector in its 22-string configuration with an instrumented volume of roughly 0.25 km^3. The search also had sensitivity to UHE electron and muon neutrinos. After application of all selection criteria to approximately 200 live-days of data, we expect a background of 0.60 +/- 0.19 (stat.) $^{+0.56}_{-0.58}$ (syst.) events and observe three events, which after inspection emerge as being compatible with background but are kept in the final sample. Therefore, we set an upper limit on neutrinos of all-flavors from UHE astrophysical sources at 90% CL of $E^{2} \Phi(\nu_{x}) < 16.3 * 10^-8 GeV cm^-2 sr^-1 s^-1 over an estimated primary neutrino energy range of 340 TeV to 200 PeV., Comment: 15 pages, submitted to Phys. Rev. D; Clarified the definition of rho(q). Added a table which describes each cut. Divided section IVC to two sections. Made two 1-D plots for Fig. 16 instead of one 2-D plot. Provided a probability to observe 3 events under pure background assumption. Clarified more in detail how the final limit was derived. etc
Published: 2012
Full Text: View/download PDF

41. All-particle cosmic ray energy spectrum measured with 26 IceTop stations

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heimann, P., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Klein, S. R., Klepser, S., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nowicki, S. C., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Pieloth, D., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Riedel, B., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Scheel, M., Schmidt, T., Schöneberg, S., Schönwald, A., Schukraft, A., Schulte, L., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Smith, M. W. E., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, corresponding to about one third of the final array. The fiducial area used in this analysis was 0.122 km^2. The analysis investigated the energy spectrum from 1 to 100 PeV measured for three different zenith angle ranges between 0{\deg} and 46{\deg}. Because of the isotropy of cosmic rays in this energy range the spectra from all zenith angle intervals have to agree. The cosmic-ray energy spectrum was determined under different assumptions on the primary mass composition. Good agreement of spectra in the three zenith angle ranges was found for the assumption of pure proton and a simple two-component model. For zenith angles {\theta} < 30{\deg}, where the mass dependence is smallest, the knee in the cosmic ray energy spectrum was observed between 3.5 and 4.32 PeV, depending on composition assumption. Spectral indices above the knee range from -3.08 to -3.11 depending on primary mass composition assumption. Moreover, an indication of a flattening of the spectrum above 22 PeV were observed., Comment: 38 pages, 17 figures
Published: 2012

42. Multi-year search for dark matter annihilations in the Sun with the AMANDA-II and IceCube detectors

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Bell, M., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brayeur, L., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Casier, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Flis, S., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heereman, D., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kappes, A., Karg, T., Karle, A., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kunnen, J., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nowicki, S. C., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Piegsa, A., Pieloth, D., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Rizzo, A., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schöneberg, S., Schönwald, A., Schukraft, A., Schulte, L., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Van Overloop, A., van Santen, J., Vehring1, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Wasserman, R., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: A search for an excess of muon-neutrinos from dark matter annihilations in the Sun has been performed with the AMANDA-II neutrino telescope using data collected in 812 days of livetime between 2001 and 2006 and 149 days of livetime collected with the AMANDA-II and the 40-string configuration of IceCube during 2008 and early 2009. No excess over the expected atmospheric neutrino background has been observed. We combine these results with the previously published IceCube limits obtained with data taken during 2007 to obtain a total livetime of 1065 days. We provide an upper limit at 90% confidence level on the annihilation rate of captured neutralinos in the Sun, as well as the corresponding muon flux limit at the Earth, both as functions of the neutralino mass in the range 50 GeV-5000 GeV. We also derive a limit on the neutralino-proton spin-dependent and spin-independent cross section. The limits presented here improve the previous results obtained by the collaboration between a factor of two and five, as well as extending the neutralino masses probed down to 50 GeV. The spin-dependent cross section limits are the most stringent so far for neutralino masses above 200 GeV, and well below direct search results in the mass range from 50 GeV to 5 TeV., Comment: author list corrected. Full author list added in this website
Published: 2011
Full Text: View/download PDF

43. Searching for soft relativistic jets in Core-collapse Supernovae with the IceCube Optical Follow-up Program

Author: The IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Allen, M. M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Demirörs, L., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Hellauer, R., Herquet, P., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stössl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., Collaboration, M. Zoll The ROTSE, Akerlof, C. W., Pandey, S. B., Yuan, F., and Zheng, W.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Context. Transient neutrino sources such as Gamma-Ray Bursts (GRBs) and Supernovae (SNe) are hypothesized to emit bursts of high-energy neutrinos on a time-scale of \lesssim 100 s. While GRB neutrinos would be produced in high relativistic jets, core-collapse SNe might host soft-relativistic jets, which become stalled in the outer layers of the progenitor star leading to an efficient production of high-energy neutrinos. Aims. To increase the sensitivity to these neutrinos and identify their sources, a low-threshold optical follow-up program for neutrino multiplets detected with the IceCube observatory has been implemented. Methods. If a neutrino multiplet, i.e. two or more neutrinos from the same direction within 100 s, is found by IceCube a trigger is sent to the Robotic Optical Transient Search Experiment, ROTSE. The 4 ROTSE telescopes immediately start an observation program of the corresponding region of the sky in order to detect an optical counterpart to the neutrino events. Results. No statistically significant excess in the rate of neutrino multiplets has been observed and furthermore no coincidence with an optical counterpart was found. Conclusion. The search allows, for the first time, to set stringent limits on current models predicting a high-energy neutrino flux from soft relativistic hadronic jets in core-collapse SNe. We conclude that a sub-population of SNe with typical Lorentz boost factor and jet energy of 10 and 3\times10^{51} erg, respectively, does not exceed 4.2% at 90% confidence., Comment: 12 pages, 12 figures, submitted to A&A
Published: 2011
Full Text: View/download PDF

44. Observation of an Anisotropy in the Galactic Cosmic Ray arrival direction at 400 TeV with IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Allen, M. M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Demirörs, L., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, C. C., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract: In this paper we report the first observation in the Southern hemisphere of an energy dependence in the Galactic cosmic ray anisotropy up to a few hundred TeV. This measurement was performed using cosmic ray induced muons recorded by the partially deployed IceCube observatory between May 2009 and May 2010. The data include a total of 33$\times 10^{9}$ muon events with a median angular resolution of $\sim3^{\circ}$ degrees. A sky map of the relative intensity in arrival direction over the Southern celestial sky is presented for cosmic ray median energies of 20 and 400 TeV. The same large-scale anisotropy observed at median energies around 20 TeV is not present at 400 TeV. Instead, the high energy skymap shows a different anisotropy structure including a deficit with a post-trial significance of -6.3$\sigma$. This anisotropy reveals a new feature of the Galactic cosmic ray distribution, which must be incorporated into theories of the origin and propagation of cosmic rays.
Published: 2011
Full Text: View/download PDF

45. Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Allen, M. M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Demirörs, L., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richman, M., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: In this paper we present the results of searches for periodic neutrino emission from a catalog of binary systems. Such modulation, observed in the photon flux, would be caused by the geometry of these systems. In the analysis, the period is fixed by these photon observations, while the phase and duration of the neutrino emission are treated as free parameters to be fit with the data. If the emission occurs during ~20% or less of the total period, this analysis achieves better sensitivity than a time-integrated analysis. We use the IceCube data taken from May 31, 2007 to April 5, 2008 with its 22-string configuration, and from April 5, 2008 to May 20, 2009 with its 40-string configuration. No evidence for neutrino emission is found, with the strongest excess occurring for Cygnus X-3 at 2.1 sigma significance after accounting for trials. Neutrino flux upper limits for both periodic and time-integrated emission are provided., Comment: 16 Pages, 2 figures
Published: 2011
Full Text: View/download PDF

46. IceCube Sensitivity for Low-Energy Neutrinos from Nearby Supernovae

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Allen, M. M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Baum, V., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., Silva, A. H. Cruz, D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Degner, T., Demirörs, L., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Diaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Dunkman, M., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Góra, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Ismail, A. Haj, Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Hellauer, R., Hickford, S., Hill, G. C., Hoffman, K. D., Hoffmann, B., Homeier, A., Hoshina, K., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jakobi, E., Jacobsen, J., Japaridze, G. S., Johansson, H., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Miarecki, S., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Richard, A. S., Richman, M., Rodrigues, J. P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schulte, L., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Singh, K., Slipak, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stezelberger, T., Stokstad, R. G., Stößl, A., Strahler, E. A., Ström, R., Stüer, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, D. L., Xu, X. W., Yanez, J. P., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: This paper describes the response of the IceCube neutrino telescope located at the geographic South Pole to outbursts of MeV neutrinos from the core collapse of nearby massive stars. IceCube was completed in December 2010 forming a lattice of 5160 photomultiplier tubes that monitor a volume of ~ 1 cubic kilometer in the deep Antarctic ice for particle induced photons. The telescope was designed to detect neutrinos with energies greater than 100 GeV. Owing to subfreezing ice temperatures, the photomultiplier dark noise rates are particularly low. Hence IceCube can also detect large numbers of MeV neutrinos by observing a collective rise in all photomultiplier rates on top of the dark noise. With 2 ms timing resolution, IceCube can detect subtle features in the temporal development of the supernova neutrino burst. For a supernova at the galactic center, its sensitivity matches that of a background-free megaton-scale supernova search experiment. The sensitivity decreases to 20 standard deviations at the galactic edge (30 kpc) and 6 standard deviations at the Large Magellanic Cloud (50 kpc). IceCube is sending triggers from potential supernovae to the Supernova Early Warning System. The sensitivity to neutrino properties such as the neutrino hierarchy is discussed, as well as the possibility to detect the neutronization burst, a short outbreak of electron neutrinos released by electron capture on protons soon after collapse. Tantalizing signatures, such as the formation of a quark star or a black hole as well as the characteristics of shock waves, are investigated to illustrate IceCube's capability for supernova detection., Comment: 17 pages, 16 figures
Published: 2011
Full Text: View/download PDF

47. Neutrino analysis of the September 2010 Crab Nebula flare and time-integrated constraints on neutrino emission from the Crab using IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clem, J., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Demirörs, L., Denger, T., Depaepe, O., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Ehrlich, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Foerster, M. M., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Gora, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Hajismail, A., Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Herquet, P., Hickford, S., Hill, G. C., Hoffman, K. D., Homeier, A., Hoshina, K., Hubert, D., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobsen, J., Japaridze, G. S., Johansson, H., Joseph, J. M., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Krings, T., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Lafebre, S., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madajczyk, B., Madsen, J., Majumdar, P., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nießen, P., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Ono, M., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, C. C., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Rizzo, A., Rodrigues, J. P., Roth, P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Slipak, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stephens, G., Stezelberger, T., Stokstad, R. G., Stössl, A., Stoyanov, S., Strahler, E. A., Straszheim, T., Stür, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., Turčan, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, X. W., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the results for a search of high-energy muon neutrinos with the IceCube detector in coincidence with the Crab nebula flare reported on September 2010 by various experiments. Due to the unusual flaring state of the otherwise steady source we performed a prompt analysis of the 79-string configuration data to search for neutrinos that might be emitted along with the observed gamma-rays. We performed two different and complementary data selections of neutrino events in the time window of 10 days around the flare. One event selection is optimized for discovery of E^-2 neutrino spectrum typical of 1st order Fermi acceleration. A similar event selection has also been applied to the 40-string data to derive the time-integrated limits to the neutrino emission from the Crab. The other event selection was optimized for discovery of neutrino spectra with softer spectral index and TeV energy cut-offs as observed for various galactic sources in gamma-rays. The 90% CL best upper limits on the Crab flux during the 10 day flare are 4.73 x 10^-11 cm-2 s-1 TeV-1 for an E^-2 neutrino spectrum and 2.50 x 10^-10 cm-2 s-1 TeV-1 for a softer neutrino spectra of E-2.7, as indicated by Fermi measurements during the flare. IceCube has also set a time-integrated limit on the neutrino emission of the Crab using 375.5 days of livetime of the 40-string configuration data. This limit is compared to existing models of neutrino production from the Crab and its impact on astrophysical parameters is discussed. The most optimistic predictions of some models are already rejected by the IceCube neutrino telescope with more than 90% CL.
Published: 2011
Full Text: View/download PDF

48. Observation of Anisotropy in the Arrival Directions of Galactic Cosmic Rays at Multiple Angular Scales with IceCube

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J. A., Ahlers, M., Altmann, D., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Brown, A. M., Buitink, S., Caballero-Mora, K. S., Carson, M., Chirkin, D., Christy, B., Clem, J., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Demirörs, L., Denger, T., Depaepe, O., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Ehrlich, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feintzeig, J., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Foerster, M. M., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Gora, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Hajismail, A., Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Herquet, P., Hickford, S., Hill, G. C., Hoffman, K. D., Homeier, A., Hoshina, K., Hubert, D., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobsen, J., Japaridze, G. S., Johansson, H., Joseph, J. M., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Krings, T., Kroll, G., Kurahashi, N., Kuwabara, T., Labare, M., Lafebre, S., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madajczyk, B., Madsen, J., Majumdar, P., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nießen, P., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Ono, M., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, C. C., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Rizzo, A., Rodrigues, J. P., Roth, P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Slipak, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stephens, G., Stezelberger, T., Stokstad, R. G., Stössl, A., Stoyanov, S., Strahler, E. A., Straszheim, T., Stür, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., Turčan, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, X. W., Yodh, G., Yoshida, S., Zarzhitsky, P., and Zoll, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Between May 2009 and May 2010, the IceCube neutrino detector at the South Pole recorded 32 billion muons generated in air showers produced by cosmic rays with a median energy of 20 TeV. With a data set of this size, it is possible to probe the southern sky for per-mille anisotropy on all angular scales in the arrival direction distribution of cosmic rays. Applying a power spectrum analysis to the relative intensity map of the cosmic ray flux in the southern hemisphere, we show that the arrival direction distribution is not isotropic, but shows significant structure on several angular scales. In addition to previously reported large-scale structure in the form of a strong dipole and quadrupole, the data show small-scale structure on scales between 15 degrees and 30 degrees. The skymap exhibits several localized regions of significant excess and deficit in cosmic ray intensity. The relative intensity of the smaller-scale structures is about a factor of 5 weaker than that of the dipole and quadrupole structure. The most significant structure, an excess localized at right ascension 122.4 degrees and declination -47.4 degrees, extends over at least 20 degrees in right ascension and has a post-trials significance of 5.3 sigma. The origin of this anisotropy is still unknown., Comment: Accepted for publication in the Astrophysical Journal
Published: 2011
Full Text: View/download PDF

49. A Search for a Diffuse Flux of Astrophysical Muon Neutrinos with the IceCube 40-String Detector

Author: IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J. A., Ahlers, M., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Braun, J., Brown, A. M., Buitink, S., Carson, M., Chirkin, D., Christy, B., Clem, J., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Demirörs, L., Denger, T., Depaepe, O., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Ehrlich, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Foerster, M. M., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Geisler, M., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Gora, D., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Herquet, P., Hickford, S., Hill, G. C., Hoffman, K. D., Homeier, A., Hoshina, K., Hubert, D., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobsen, J., Japaridze, G. S., Johansson, H., Joseph, J. M., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kelley, J. L., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Krings, T., Kroll, G., Kuwabara, T., Labare, M., Lafebre, S., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Majumdar, P., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nießen, P., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Ono, M., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, P. B., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Rizzo, A., Rodrigues, J. P., Roth, P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Slipak, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stephens, G., Stezelberger, T., Stokstad, R. G., Stössl, A., Stoyanov, S., Strahler, E. A., Straszheim, T., Stür, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., Turčan, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Wood, T. R., Woschnagg, K., Xu, C., Xu, X. W., Yodh, G., Yoshida, S., and Zarzhitsky, P.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: The IceCube Neutrino Observatory is a 1 km$^{3}$ detector currently taking data at the South Pole. One of the main strategies used to look for astrophysical neutrinos with IceCube is the search for a diffuse flux of high-energy neutrinos from unresolved sources. A hard energy spectrum of neutrinos from isotropically distributed astrophysical sources could manifest itself as a detectable signal that may be differentiated from the atmospheric neutrino background by spectral measurement. This analysis uses data from the IceCube detector collected in its half completed configuration which operated between April 2008 and May 2009 to search for a diffuse flux of astrophysical muon neutrinos. A total of 12,877 upward going candidate neutrino events have been selected for this analysis. No evidence for a diffuse flux of astrophysical muon neutrinos was found in the data set leading to a 90 percent C.L. upper limit on the normalization of an $E^{-2}$ astrophysical $\nu_{\mu}$ flux of $8.9 \times 10^{-9} \ \mathrm{GeV \ cm^{-2} \ s^{-1} \ sr^{-1}}$. The analysis is sensitive in the energy range between $35 \ \mathrm{TeV} - 7 \ \mathrm{PeV}$. The 12,877 candidate neutrino events are consistent with atmospheric muon neutrinos measured from 332 GeV to 84 TeV and no evidence for a prompt component to the atmospheric neutrino spectrum is found., Comment: 20 pages, 13 figures
Published: 2011
Full Text: View/download PDF

50. Time-Dependent Searches for Point Sources of Neutrinos with the 40-String and 22-String Configurations of IceCube

Author: The IceCube Collaboration, Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J. A., Ahlers, M., Andeen, K., Auffenberg, J., Bai, X., Baker, M., Barwick, S. W., Bay, R., Alba, J. L. Bazo, Beattie, K., Beatty, J. J., Bechet, S., Becker, J. K., Becker, K. -H., Benabderrahmane, M. L., BenZvi, S., Berdermann, J., Berghaus, P., Berley, D., Bernardini, E., Bertrand, D., Besson, D. Z., Bindig, D., Bissok, M., Blaufuss, E., Blumenthal, J., Boersma, D. J., Bohm, C., Bose, D., Böser, S., Botner, O., Braun, J., Brown, A. M., Buitink, S., Carson, M., Chirkin, D., Christy, B., Clem, J., Clevermann, F., Cohen, S., Colnard, C., Cowen, D. F., D'Agostino, M. V., Danninger, M., Daughhetee, J., Davis, J. C., De Clercq, C., Demirörs, L., Denger, T., Depaepe, O., Descamps, F., Desiati, P., de Vries-Uiterweerd, G., DeYoung, T., Díaz-Vélez, J. C., Dierckxsens, M., Dreyer, J., Dumm, J. P., Ehrlich, R., Eisch, J., Ellsworth, R. W., Engdegård, O., Euler, S., Evenson, P. A., Fadiran, O., Fazely, A. R., Fedynitch, A., Feusels, T., Filimonov, K., Finley, C., Fischer-Wasels, T., Foerster, M. M., Fox, B. D., Franckowiak, A., Franke, R., Gaisser, T. K., Gallagher, J., Geisler, M., Gerhardt, L., Gladstone, L., Glüsenkamp, T., Goldschmidt, A., Goodman, J. A., Grant, D., Griesel, T., Groß, A., Grullon, S., Gurtner, M., Ha, C., Hallgren, A., Halzen, F., Han, K., Hanson, K., Heinen, D., Helbing, K., Herquet, P., Hickford, S., Hill, G. C., Hoffman, K. D., Homeier, A., Hoshina, K., Hubert, D., Huelsnitz, W., Hülß, J. -P., Hulth, P. O., Hultqvist, K., Hussain, S., Ishihara, A., Jacobsen, J., Japaridze, G. S., Johansson, H., Joseph, J. M., Kampert, K. -H., Kappes, A., Karg, T., Karle, A., Kelley, J. L., Kenny, P., Kiryluk, J., Kislat, F., Klein, S. R., Köhne, J. -H., Kohnen, G., Kolanoski, H., Köpke, L., Kopper, S., Koskinen, D. J., Kowalski, M., Kowarik, T., Krasberg, M., Krings, T., Kroll, G., Kuehn, K., Kurahashi, N., Kuwabara, T., Labare, M., Lafebre, S., Laihem, K., Landsman, H., Larson, M. J., Lauer, R., Lünemann, J., Madsen, J., Majumdar, P., Marotta, A., Maruyama, R., Mase, K., Matis, H. S., Meagher, K., Merck, M., Mészáros, P., Meures, T., Middell, E., Milke, N., Miller, J., Montaruli, T., Morse, R., Movit, S. M., Nahnhauer, R., Nam, J. W., Naumann, U., Nießen, P., Nygren, D. R., Odrowski, S., Olivas, A., Olivo, M., O'Murchadha, A., Ono, M., Panknin, S., Paul, L., Heros, C. Pérez de los, Petrovic, J., Piegsa, A., Pieloth, D., Porrata, R., Posselt, J., Price, P. B., Prikockis, M., Przybylski, G. T., Rawlins, K., Redl, P., Resconi, E., Rhode, W., Ribordy, M., Rizzo, A., Rodrigues, J. P., Roth, P., Rothmaier, F., Rott, C., Ruhe, T., Rutledge, D., Ruzybayev, B., Ryckbosch, D., Sander, H. -G., Santander, M., Sarkar, S., Schatto, K., Schmidt, T., Schönwald, A., Schukraft, A., Schultes, A., Schulz, O., Schunck, M., Seckel, D., Semburg, B., Seo, S. H., Sestayo, Y., Seunarine, S., Silvestri, A., Slipak, A., Spiczak, G. M., Spiering, C., Stamatikos, M., Stanev, T., Stephens, G., Stezelberger, T., Stokstad, R. G., Stössl, A., Stoyanov, S., Strahler, E. A., Straszheim, T., Stür, M., Sullivan, G. W., Swillens, Q., Taavola, H., Taboada, I., Tamburro, A., Tepe, A., Ter-Antonyan, S., Tilav, S., Toale, P. A., Toscano, S., Tosi, D., Turčan, D., van Eijndhoven, N., Vandenbroucke, J., Van Overloop, A., van Santen, J., Vehring, M., Voge, M., Walck, C., Waldenmaier, T., Wallraff, M., Walter, M., Weaver, Ch., Wendt, C., Westerhoff, S., Whitehorn, N., Wiebe, K., Wiebusch, C. H., Williams, D. R., Wischnewski, R., Wissing, H., Wolf, M., Woschnagg, K., Xu, C., Xu, X. W., Yodh, G., Yoshida, S., and Zarzhitsky, P.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: This paper presents searches for flaring sources of neutrinos using the IceCube neutrino telescope. For the first time, a search is performed over the entire parameter space of energy, direction and time looking for neutrino flares of 20 microseconds to a year duration from astrophysical sources among the atmospheric neutrino and muon backgrounds. Searches which integrate over time are less sensitive to flares because they are affected by a larger background of atmospheric neutrinos and muons that can be reduced by the time constraint. Flaring sources considered here, such as active galactic nuclei, soft gamma-ray repeaters and gamma-ray bursts, are promising candidate neutrino emitters. We used mainly data taken between April 5, 2008 and May 20, 2009 by a partially completed configuration of IceCube with 40 strings. For the presented searches an unbinned maximum likelihood method is used with a time-dependent prior to test several different source hypotheses. An "untriggered" search covers any possible time-dependent emission from sources not correlated to any other observation using other astrophysical messengers such as photons. Moreover, a similar time scan is performed for a predefined catalogue of sources that exhibit intense photon flares. Searches triggered by multi-wavelength information on flares from blazars and soft gamma-ray repeaters are performed using the 40 string data and also the data taken by the previous configuration of 22 strings in operation between May 31, 2007 and April 5, 2008. Flares for which extensive and continuous monitoring is available from Fermi-LAT and SWIFT and flares detected by imaging Cherenkov telescopes with shorter time-scale monitoring are considered. The results from all searches are compatible with a fluctuation of the background., Comment: 37 pages, 14 figures. Accepted to the Astrophysical Journal
Published: 2011
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Region

Database

Publisher

686 results on '"Beattie, K."'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources