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39 results on '"Wilkerson, J"'

1. Results from the Baksan Experiment on Sterile Transitions (BEST)

Author

Barinov, V. V., primary, Cleveland, B. T., additional, Danshin, S. N., additional, Ejiri, H., additional, Elliott, S. R., additional, Frekers, D., additional, Gavrin, V. N., additional, Gorbachev, V. V., additional, Gorbunov, D. S., additional, Haxton, W. C., additional, Ibragimova, T. V., additional, Kim, I., additional, Kozlova, Yu. P., additional, Kravchuk, L. V., additional, Kuzminov, V. V., additional, Lubsandorzhiev, B. K., additional, Malyshkin, Yu. M., additional, Massarczyk, R., additional, Matveev, V. A., additional, Mirmov, I. N., additional, Nico, J. S., additional, Petelin, A. L., additional, Robertson, R. G. H., additional, Sinclair, D., additional, Shikhin, A. A., additional, Tarasov, V. A., additional, Trubnikov, G. V., additional, Veretenkin, E. P., additional, Wilkerson, J. F., additional, and Zvir, A. I., additional

Published
2022
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3. Results from a Search for Light-Mass Dark Matter with ap-Type Point Contact Germanium Detector

Author

Aalseth, C. E., Barbeau, P. S., Bowden, N. S., Cabrera-Palmer, B., Colaresi, J., Collar, J. I., Dazeley, S., de Lurgio, P., Drake, G., Fast, J. E., Fields, N., Greenberg, C. H., Hossbach, T. W., Keillor, M. E., Kephart, J. D., Marino, M. G., Miley, H. S., Miller, M. L., Orrell, J. L., Radford, D. C., Reyna, D., Robertson, R. G. H., Talaga, R. L., Tench, O., Van Wechel, T. D., Wilkerson, J. F., and Yocum, K. M.

Subjects
Physics, DAMA/LIBRA, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Dark matter, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, General Physics and Astronomy, Instrumentation and Detectors (physics.ins-det), Astrophysics, 01 natural sciences, Electromagnetic radiation, Particle detector, Spectral line, High Energy Physics - Experiment, Semiconductor detector, High Energy Physics - Experiment (hep-ex), WIMP, 13. Climate action, DAMA/NaI, 0103 physical sciences, 010306 general physics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report on several features present in the energy spectrum from an ultra low-noise germanium detector operated at 2,100 m.w.e. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss several possible causes for an irreducible excess of bulk-like events below 3 keVee, including a dark matter candidate common to the DAMA/LIBRA annual modulation effect, the hint of a signal in CDMS, and phenomenological predictions. Improved constraints are placed on a cosmological origin for the DAMA/LIBRA effect., Comment: 4 pages, 4 figures. v2: submitted version. Minimal changes in wording, one reference added

Published
2011
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4. Measurement of the rate of ve + d → p + p + e- interactions produced by 8B solar neutrinos at the sudbury neutrino observatory

Author

Ahmad, Q. R., Allen, R. C., Thomas Andersen, Anglin, J. D., Bühler, G., Barton, J. C., Beier, E. W., Bercovitch, M., Bigu, J., Biller, S., Black, R. A., Blevis, I., Bardman, R. J., Boger, J., Bonvin, E., Boulay, M. G., Bowler, M. G., Bowles, T. J., Brice, S. J., Browne, M. C., Bullard, T. V., Burritt, T. H., Cameron, K., Cameron, J., Chan, Y. D., Chen, M., Chen, H. H., Chen, X., Chon, M. C., Cleveland, B. T., Clifford, E. T. H., Cowan, J. H. M., Cowen, D. F., Cox, G. A., Dai, Y., Dai, X., Dalnoki-Veress, F., Davidson, W. F., Doe, P. J., Doucas, G., Dragowsky, M. R., Duba, C. A., Duncan, F. A., Dunmore, J., Earle, E. D., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Ferraris, A. P., Ford, R. J., Fowler, M. M., Frame, K., Frank, E. D., Frati, W., Germani, J. V., Gil, S., Goldschmidt, A., Grant, D. R., Hahn, R. L., Hallin, A. L., Hallman, E. D., Hamer, A., Hamian, A. A., Haq, R. U., Hargrove, C. K., Harvey, P. J., Hazama, R., Heaton, R., Heeger, K. M., Heintzelman, W. J., Heise, J., Helmer, R. L., Hepburn, J. D., Heron, H., Hewett, J., Hime, A., Howe, M., Hykawy, J. G., Isaac, M. C. P., Jagam, P., Jelley, N. A., Jillings, C., Jonkmans, G., Karn, J., Keener, P. T., Kirch, K., Klein, J. R., Knox, A. B., Komar, R. J., Kouzes, R., Kutter, T., Kyba, C. C. M., Law, J., Lawson, I. T., Lay, M., Lee, H. W., Lesko, K. T., Leslie, J. R., Levine, I., Locke, W., Lowry, M. M., Luoma, S., Lyon, J., Majerus, S., Mak, H. B., Marino, A. D., Mccauley, N., Mcdonald, A. B., Mcdonald, D. S., Mcfarlane, K., Mcgregor, G., Mclatchie, W., Meijer Drees, R., Mes, H., Mifflin, C., Miller, G. G., Milton, G., Moffat, B. A., Moorhead, M., Nally, C. W., Neubauer, M. S., Newcomer, F. M., Ng, H. S., Noble, A. J., Norman, E. B., Novikov, V. M., O Neill, M., Okada, C. E., Ollerhead, R. W., Omori, M., Orrell, J. L., Oser, S. M., Poon, A. W. P., Radcliffe, T. J., Roberge, A., Robertson, B. C., Robertson, R. G. H., Rowley, J. K., Rusu, V. L., Saettler, E., Schaffer, K. K., Schuelke, A., Schwendener, M. H., Seifert, H., Shatkay, M., Simpson, J. J., Sinclair, D., Skensved, P., Smith, A. R., Smith, M. W. E., Starinsky, N., Steiger, T. D., Stokstad, R. G., Storey, R. S., Sur, B., Tafirout, R., Tagg, N., Tanner, N. W., Taplin, R. K., Thorman, M., Thornewell, P., Trent, P. T., Tserkovnyak, Y. I., Berg, R., Water, R. G., Virtue, C. J., Waltham, C. E., Wang, J. -X, Wark, D. L., West, N., Wilhelmy, J. B., Wilkerson, J. F., Wilson, J., Wittich, P., Wouters, J. M., and Yeh, M.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

The 8B flux from elastic scattering (ES) and charged current (CC) of electrons was recorded at the Sudbury Neutrino Observatory (SNO) between November 2, 1999 and January 15, 2001. Data were partitioned into two sets then analyzed. As a result, the first direct indication of a nonelectron flavor component in the solar neutrino flux was established.

Published
2001

5. Measurement of the Rate of νe + d → p + p + e- Interactions Produced by B8 Solar Neutrinos at the Sudbury Neutrino Observatory

Author

Ahmad, Q, Allen, R, Andersen, T, Anglin, J, Bühler, G, Barton, J, Beier, E, Bercovitch, M, Bigu, J, Biller, S, Black, R, Blevis, I, Boardman, R, Boger, J, Bonvin, E, Boulay, M, Bowler, M, Bowles, T, Brice, S, Browne, M, Bullard, T, Burritt, T, Cameron, K, Cameron, J, Chan, Y, Chen, M, Chen, H, Chen, X, Chon, M, Cleveland, B, Clifford, E, Cowan, J, Cowen, D, Cox, G, Dai, Y, Dai, X, Dalnoki-Veress, F, Davidson, W, Doe, P, Doucas, G, Dragowsky, M, Duba, C, Duncan, F, Dunmore, J, Earle, E, Elliott, S, Evans, H, Ewan, G, Farine, J, Fergani, H, Ferraris, A, Ford, R, Fowler, M, Frame, K, Frank, E, Frati, W, Germani, J, Gil, S, Goldschmidt, A, Grant, D, Hahn, R, Hallin, A, Hallman, E, Hamer, A, Hamian, A, Haq, R, Hargrove, C, Harvey, P, Hazama, R, Heaton, R, Heeger, K, Heintzelman, W, Heise, J, Helmer, R, Hepburn, J, Heron, H, Hewett, J, Hime, A, Howe, M, Hykawy, J, Isaac, M, Jagam, P, Jelley, N, Jillings, C, Jonkmans, G, Karn, J, Keener, P, Kirch, K, Klein, J, Knox, A, Komar, R, Kouzes, R, Kutter, T, Kyba, C, Law, J, Lawson, I, Lay, M, Lee, H, Lesko, K, Leslie, J, Levine, I, Locke, W, Lowry, M, Luoma, S, Lyon, J, Majerus, S, Mak, H, Marino, A, McCauley, N, McDonald, A, McDonald, D, McFarlane, K, McGregor, G, McLatchie, W, Drees, R, Mes, H, Mifflin, C, Miller, G, Milton, G, Moffat, B, Moorhead, M, Nally, C, Neubauer, M, Newcomer, F, Ng, H, Noble, A, Norman, E, Novikov, V, O'Neill, M, Okada, C, Ollerhead, R, Omori, M, Orrell, J, Oser, S, Poon, A, Radcliffe, T, Roberge, A, Robertson, B, Robertson, R, Rowley, J, Rusu, V, Saettler, E, Schaffer, K, Schuelke, A, Schwendener, M, Seifert, H, Shatkay, M, Simpson, J, Sinclair, D, Skensved, P, Smith, A, Smith, M, Starinsky, N, Steiger, T, Stokstad, R, Storey, R, Sur, B, Tafirout, R, Tagg, N, Tanner, N, Taplin, R, Thorman, M, Thornewell, P, Trent, P, Tserkovnyak, Y, Van Berg, R, Van de Water, R, Virtue, C, Waltham, C, Wang, J-X, Wark, D, West, N, Wilhelmy, J, Wilkerson, J, Wilson, J, Wittich, P, Wouters, J, and Yeh, M

Published
2001

6. New Limit on Time-Reversal Violation in Beta Decay

Author

Mumm, H. P., primary, Chupp, T. E., additional, Cooper, R. L., additional, Coulter, K. P., additional, Freedman, S. J., additional, Fujikawa, B. K., additional, García, A., additional, Jones, G. L., additional, Nico, J. S., additional, Thompson, A. K., additional, Trull, C. A., additional, Wilkerson, J. F., additional, and Wietfeldt, F. E., additional

Published
2011
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7. Erratum: Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect [Phys. Rev. Lett.PRLTAO0031-9007101, 251301 (2008)]

Author

Aalseth, C. E., primary, Barbeau, P. S., additional, Cerdeno, D. G., additional, Colaresi, J., additional, Collar, J. I., additional, de Lurgio, P., additional, Drake, G., additional, Fast, J. E., additional, Greenberg, C. H., additional, Hossbach, T. W., additional, Kephart, J. D., additional, Marino, M. G., additional, Miley, H. S., additional, Orrell, J. L., additional, Reyna, D., additional, Robertson, R. G. H., additional, Talaga, R. L., additional, Tench, O., additional, Van Wechel, T. D., additional, Wilkerson, J. F., additional, and Yocum, K. M., additional

Published
2009
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8. Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect

Author

Aalseth, C. E., primary, Barbeau, P. S., additional, Cerdeño, D. G., additional, Colaresi, J., additional, Collar, J. I., additional, de Lurgio, P., additional, Drake, G., additional, Fast, J. E., additional, Greenberg, C. H., additional, Hossbach, T. W., additional, Kephart, J. D., additional, Marino, M. G., additional, Miley, H. S., additional, Orrell, J. L., additional, Reyna, D., additional, Robertson, R. G. H., additional, Talaga, R. L., additional, Tench, O., additional, Van Wechel, T. D., additional, Wilkerson, J. F., additional, and Yocum, K. M., additional

Published
2008
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9. Independent Measurement of the Total ActiveB8Solar Neutrino Flux Using an Array ofHe3Proportional Counters at the Sudbury Neutrino Observatory

Author

Aharmim, B., primary, Ahmed, S. N., additional, Amsbaugh, J. F., additional, Anthony, A. E., additional, Banar, J., additional, Barros, N., additional, Beier, E. W., additional, Bellerive, A., additional, Beltran, B., additional, Bergevin, M., additional, Biller, S. D., additional, Boudjemline, K., additional, Boulay, M. G., additional, Bowles, T. J., additional, Browne, M. C., additional, Bullard, T. V., additional, Burritt, T. H., additional, Cai, B., additional, Chan, Y. D., additional, Chauhan, D., additional, Chen, M., additional, Cleveland, B. T., additional, Cox-Mobrand, G. A., additional, Currat, C. A., additional, Dai, X., additional, Deng, H., additional, Detwiler, J., additional, DiMarco, M., additional, Doe, P. J., additional, Doucas, G., additional, Drouin, P.-L., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunford, M., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Fleurot, F., additional, Ford, R. J., additional, Formaggio, J. A., additional, Fowler, M. M., additional, Gagnon, N., additional, Germani, J. V., additional, Goldschmidt, A., additional, Goon, J. T. M., additional, Graham, K., additional, Guillian, E., additional, Habib, S., additional, Hahn, R. L., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamian, A. A., additional, Harper, G. C., additional, Harvey, P. J., additional, Hazama, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Henning, R., additional, Hime, A., additional, Howard, C., additional, Howe, M. A., additional, Huang, M., additional, Jagam, P., additional, Jamieson, B., additional, Jelley, N. A., additional, Keeter, K. J., additional, Klein, J. R., additional, Kormos, L. L., additional, Kos, M., additional, Krüger, A., additional, Kraus, C., additional, Krauss, C. B., additional, Kutter, T., additional, Kyba, C. C. M., additional, Lange, R., additional, Law, J., additional, Lawson, I. T., additional, Lesko, K. T., additional, Leslie, J. R., additional, Loach, J. C., additional, MacLellan, R., additional, Majerus, S., additional, Mak, H. B., additional, Maneira, J., additional, Martin, R., additional, McBryde, K., additional, McCauley, N., additional, McDonald, A. B., additional, McGee, S., additional, Mifflin, C., additional, Miller, G. G., additional, Miller, M. L., additional, Monreal, B., additional, Monroe, J., additional, Morissette, B., additional, Myers, A., additional, Nickel, B. G., additional, Noble, A. J., additional, Oblath, N. S., additional, O’Keeffe, H. M., additional, Ollerhead, R. W., additional, Gann, G. D. Orebi, additional, Oser, S. M., additional, Ott, R. A., additional, Peeters, S. J. M., additional, Poon, A. W. P., additional, Prior, G., additional, Reitzner, S. D., additional, Rielage, K., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rollin, E., additional, Schwendener, M. H., additional, Secrest, J. A., additional, Seibert, S. R., additional, Simard, O., additional, Simpson, J. J., additional, Sinclair, L., additional, Skensved, P., additional, Smith, M. W. E., additional, Steiger, T. D., additional, Stonehill, L. C., additional, Tešić, G., additional, Thornewell, P. M., additional, Tolich, N., additional, Tsui, T., additional, Tunnell, C. D., additional, Van Wechel, T., additional, Van Berg, R., additional, VanDevender, B. A., additional, Virtue, C. J., additional, Walker, T. J., additional, Wall, B. L., additional, Waller, D., additional, Tseung, H. Wan Chan, additional, Wendland, J., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J. R., additional, Wouters, J. M., additional, Wright, A., additional, Yeh, M., additional, Zhang, F., additional, and Zuber, K., additional

Published
2008
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10. Measurement of the Total ActiveB8Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity

Author

Ahmed, S. N., primary, Anthony, A. E., additional, Beier, E. W., additional, Bellerive, A., additional, Biller, S. D., additional, Boger, J., additional, Boulay, M. G., additional, Bowler, M. G., additional, Bowles, T. J., additional, Brice, S. J., additional, Bullard, T. V., additional, Chan, Y. D., additional, Chen, M., additional, Chen, X., additional, Cleveland, B. T., additional, Cox, G. A., additional, Dai, X., additional, Dalnoki-Veress, F., additional, Doe, P. J., additional, Dosanjh, R. S., additional, Doucas, G., additional, Dragowsky, M. R., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunford, M., additional, Dunmore, J. A., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Fleurot, F., additional, Formaggio, J. A., additional, Fowler, M. M., additional, Frame, K., additional, Fulsom, B. G., additional, Gagnon, N., additional, Graham, K., additional, Grant, D. R., additional, Hahn, R. L., additional, Hall, J. C., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamer, A. S., additional, Handler, W. B., additional, Hargrove, C. K., additional, Harvey, P. J., additional, Hazama, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Hemingway, R. J., additional, Hime, A., additional, Howe, M. A., additional, Jagam, P., additional, Jelley, N. A., additional, Klein, J. R., additional, Kos, M. S., additional, Krumins, A. V., additional, Kutter, T., additional, Kyba, C. C. M., additional, Labranche, H., additional, Lange, R., additional, Law, J., additional, Lawson, I. T., additional, Lesko, K. T., additional, Leslie, J. R., additional, Levine, I., additional, Luoma, S., additional, MacLellan, R., additional, Majerus, S., additional, Mak, H. B., additional, Maneira, J., additional, Marino, A. D., additional, McCauley, N., additional, McDonald, A. B., additional, McGee, S., additional, McGregor, G., additional, Mifflin, C., additional, Miknaitis, K. K. S., additional, Miller, G. G., additional, Moffat, B. A., additional, Nally, C. W., additional, Nickel, B. G., additional, Noble, A. J., additional, Norman, E. B., additional, Oblath, N. S., additional, Okada, C. E., additional, Ollerhead, R. W., additional, Orrell, J. L., additional, Oser, S. M., additional, Ouellet, C., additional, Peeters, S. J. M., additional, Poon, A. W. P., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rollin, E., additional, Rosendahl, S. S. E., additional, Rusu, V. L., additional, Schwendener, M. H., additional, Simard, O., additional, Simpson, J. J., additional, Sims, C. J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, M. W. E., additional, Starinsky, N., additional, Stokstad, R. G., additional, Stonehill, L. C., additional, Tafirout, R., additional, Takeuchi, Y., additional, Tešić, G., additional, Thomson, M., additional, Thorman, M., additional, Van Berg, R., additional, Van de Water, R. G., additional, Virtue, C. J., additional, Wall, B. L., additional, Waller, D., additional, Waltham, C. E., additional, Tseung, H. Wan Chan, additional, Wark, D. L., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J. R., additional, Wouters, J. M., additional, Yeh, M., additional, and Zuber, K., additional

Published
2004
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11. Constraints on Nucleon Decay via Invisible Modes from the Sudbury Neutrino Observatory

Author

Ahmed, S. N., primary, Anthony, A. E., additional, Beier, E. W., additional, Bellerive, A., additional, Biller, S. D., additional, Boger, J., additional, Boulay, M. G., additional, Bowler, M. G., additional, Bowles, T. J., additional, Brice, S. J., additional, Bullard, T. V., additional, Chan, Y. D., additional, Chen, M., additional, Chen, X., additional, Cleveland, B. T., additional, Cox, G. A., additional, Dai, X., additional, Dalnoki-Veress, F., additional, Doe, P. J., additional, Dosanjh, R. S., additional, Doucas, G., additional, Dragowsky, M. R., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunford, M., additional, Dunmore, J. A., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Fleurot, F., additional, Formaggio, J. A., additional, Fowler, M. M., additional, Frame, K., additional, Frati, W., additional, Fulsom, B. G., additional, Gagnon, N., additional, Graham, K., additional, Grant, D. R., additional, Hahn, R. L., additional, Hall, J. C., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamer, A. S., additional, Handler, W. B., additional, Hargrove, C. K., additional, Harvey, P. J., additional, Hazama, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Hemingway, R. J., additional, Hime, A., additional, Howe, M. A., additional, Jagam, P., additional, Jelley, N. A., additional, Klein, J. R., additional, Kos, M. S., additional, Krumins, A. V., additional, Kutter, T., additional, Kyba, C. C. M., additional, Labranche, H., additional, Lange, R., additional, Law, J., additional, Lawson, I. T., additional, Lesko, K. T., additional, Leslie, J. R., additional, Levine, I., additional, Luoma, S., additional, MacLellan, R., additional, Majerus, S., additional, Mak, H. B., additional, Maneira, J., additional, Marino, A. D., additional, McCauley, N., additional, McDonald, A. B., additional, McGee, S., additional, McGregor, G., additional, Mifflin, C., additional, Miknaitis, K. K. S., additional, Miller, G. G., additional, Moffat, B. A., additional, Nally, C. W., additional, Neubauer, M. S., additional, Nickel, B. G., additional, Noble, A. J., additional, Norman, E. B., additional, Oblath, N. S., additional, Okada, C. E., additional, Ollerhead, R. W., additional, Orrell, J. L., additional, Oser, S. M., additional, Ouellet, C., additional, Peeters, S. J. M., additional, Poon, A. W. P., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rollin, E., additional, Rosendahl, S. S. E., additional, Rusu, V. L., additional, Schwendener, M. H., additional, Simard, O., additional, Simpson, J. J., additional, Sims, C. J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, M. W. E., additional, Starinsky, N., additional, Stokstad, R. G., additional, Stonehill, L. C., additional, Tafirout, R., additional, Takeuchi, Y., additional, Tešić, G., additional, Thomson, M., additional, Thorman, M., additional, Van Berg, R., additional, Van de Water, R. G., additional, Virtue, C. J., additional, Wall, B. L., additional, Waller, D., additional, Waltham, C. E., additional, Tseung, H. Wan Chan, additional, Wark, D. L., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J. R., additional, Wittich, P., additional, Wouters, J. M., additional, Yeh, M., additional, and Zuber, K., additional

Published
2004
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12. Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters

Author

Ahmad, Q. R., primary, Allen, R. C., additional, Andersen, T. C., additional, Anglin, J. D., additional, Barton, J. C., additional, Beier, E. W., additional, Bercovitch, M., additional, Bigu, J., additional, Biller, S. D., additional, Black, R. A., additional, Blevis, I., additional, Boardman, R. J., additional, Boger, J., additional, Bonvin, E., additional, Boulay, M. G., additional, Bowler, M. G., additional, Bowles, T. J., additional, Brice, S. J., additional, Browne, M. C., additional, Bullard, T. V., additional, Bühler, G., additional, Cameron, J., additional, Chan, Y. D., additional, Chen, H. H., additional, Chen, M., additional, Chen, X., additional, Cleveland, B. T., additional, Clifford, E. T. H., additional, Cowan, J. H. M., additional, Cowen, D. F., additional, Cox, G. A., additional, Dai, X., additional, Dalnoki-Veress, F., additional, Davidson, W. F., additional, Doe, P. J., additional, Doucas, G., additional, Dragowsky, M. R., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunford, M., additional, Dunmore, J. A., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Ferraris, A. P., additional, Ford, R. J., additional, Formaggio, J. A., additional, Fowler, M. M., additional, Frame, K., additional, Frank, E. D., additional, Frati, W., additional, Gagnon, N., additional, Germani, J. V., additional, Gil, S., additional, Graham, K., additional, Grant, D. R., additional, Hahn, R. L., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamer, A. S., additional, Hamian, A. A., additional, Handler, W. B., additional, Haq, R. U., additional, Hargrove, C. K., additional, Harvey, P. J., additional, Hazama, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Hepburn, J. D., additional, Heron, H., additional, Hewett, J., additional, Hime, A., additional, Howe, M., additional, Hykawy, J. G., additional, Isaac, M. C. P., additional, Jagam, P., additional, Jelley, N. A., additional, Jillings, C., additional, Jonkmans, G., additional, Kazkaz, K., additional, Keener, P. T., additional, Klein, J. R., additional, Knox, A. B., additional, Komar, R. J., additional, Kouzes, R., additional, Kutter, T., additional, Kyba, C. C. M., additional, Law, J., additional, Lawson, I. T., additional, Lay, M., additional, Lee, H. W., additional, Lesko, K. T., additional, Leslie, J. R., additional, Levine, I., additional, Locke, W., additional, Luoma, S., additional, Lyon, J., additional, Majerus, S., additional, Mak, H. B., additional, Maneira, J., additional, Manor, J., additional, Marino, A. D., additional, McCauley, N., additional, McDonald, A. B., additional, McDonald, D. S., additional, McFarlane, K., additional, McGregor, G., additional, Meijer Drees, R., additional, Mifflin, C., additional, Miller, G. G., additional, Milton, G., additional, Moffat, B. A., additional, Moorhead, M., additional, Nally, C. W., additional, Neubauer, M. S., additional, Newcomer, F. M., additional, Ng, H. S., additional, Noble, A. J., additional, Norman, E. B., additional, Novikov, V. M., additional, O'Neill, M., additional, Okada, C. E., additional, Ollerhead, R. W., additional, Omori, M., additional, Orrell, J. L., additional, Oser, S. M., additional, Poon, A. W. P., additional, Radcliffe, T. J., additional, Roberge, A., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rosendahl, S. S. E., additional, Rowley, J. K., additional, Rusu, V. L., additional, Saettler, E., additional, Schaffer, K. K., additional, Schwendener, M. H., additional, Schülke, A., additional, Seifert, H., additional, Shatkay, M., additional, Simpson, J. J., additional, Sims, C. J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, A. R., additional, Smith, M. W. E., additional, Spreitzer, T., additional, Starinsky, N., additional, Steiger, T. D., additional, Stokstad, R. G., additional, Stonehill, L. C., additional, Storey, R. S., additional, Sur, B., additional, Tafirout, R., additional, Tagg, N., additional, Tanner, N. W., additional, Taplin, R. K., additional, Thorman, M., additional, Thornewell, P. M., additional, Trent, P. T., additional, Tserkovnyak, Y. I., additional, Van Berg, R., additional, Van de Water, R. G., additional, Virtue, C. J., additional, Waltham, C. E., additional, Wang, J.-X., additional, Wark, D. L., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J. R., additional, Wittich, P., additional, Wouters, J. M., additional, and Yeh, M., additional

Published
2002
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13. Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory

Author

Ahmad, Q. R., primary, Allen, R. C., additional, Andersen, T. C., additional, D.Anglin, J., additional, Barton, J. C., additional, Beier, E. W., additional, Bercovitch, M., additional, Bigu, J., additional, Biller, S. D., additional, Black, R. A., additional, Blevis, I., additional, Boardman, R. J., additional, Boger, J., additional, Bonvin, E., additional, Boulay, M. G., additional, Bowler, M. G., additional, Bowles, T. J., additional, Brice, S. J., additional, Browne, M. C., additional, Bullard, T. V., additional, Bühler, G., additional, Cameron, J., additional, Chan, Y. D., additional, Chen, H. H., additional, Chen, M., additional, Chen, X., additional, Cleveland, B. T., additional, Clifford, E. T. H., additional, Cowan, J. H. M., additional, Cowen, D. F., additional, Cox, G. A., additional, Dai, X., additional, Dalnoki-Veress, F., additional, Davidson, W. F., additional, Doe, P. J., additional, Doucas, G., additional, Dragowsky, M. R., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunford, M., additional, Dunmore, J. A., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Ferraris, A. P., additional, Ford, R. J., additional, Formaggio, J. A., additional, Fowler, M. M., additional, Frame, K., additional, Frank, E. D., additional, Frati, W., additional, Gagnon, N., additional, Germani, J. V., additional, Gil, S., additional, Graham, K., additional, Grant, D. R., additional, Hahn, R. L., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamer, A. S., additional, Hamian, A. A., additional, Handler, W. B., additional, Haq, R. U., additional, Hargrove, C. K., additional, Harvey, P. J., additional, Hazama, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Hepburn, J. D., additional, Heron, H., additional, Hewett, J., additional, Hime, A., additional, Howe, M., additional, Hykawy, J. G., additional, Isaac, M. C. P., additional, Jagam, P., additional, Jelley, N. A., additional, Jillings, C., additional, Jonkmans, G., additional, Kazkaz, K., additional, Keener, P. T., additional, Klein, J. R., additional, Knox, A. B., additional, Komar, R. J., additional, Kouzes, R., additional, Kutter, T., additional, Kyba, C. C. M., additional, Law, J., additional, Lawson, I. T., additional, Lay, M., additional, Lee, H. W., additional, Lesko, K. T., additional, Leslie, J. R., additional, Levine, I., additional, Locke, W., additional, Luoma, S., additional, Lyon, J., additional, Majerus, S., additional, Mak, H. B., additional, Maneira, J., additional, Manor, J., additional, Marino, A. D., additional, McCauley, N., additional, McDonald, A. B., additional, McDonald, D. S., additional, McFarlane, K., additional, McGregor, G., additional, Meijer Drees, R., additional, Mifflin, C., additional, Miller, G. G., additional, Milton, G., additional, Moffat, B. A., additional, Moorhead, M., additional, Nally, C. W., additional, Neubauer, M. S., additional, Newcomer, F. M., additional, Ng, H. S., additional, Noble, A. J., additional, Norman, E. B., additional, Novikov, V. M., additional, O'Neill, M., additional, Okada, C. E., additional, Ollerhead, R. W., additional, Omori, M., additional, Orrell, J. L., additional, Oser, S. M., additional, Poon, A. W. P., additional, Radcliffe, T. J., additional, Roberge, A., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rosendahl, S. S. E., additional, Rowley, J. K., additional, Rusu, V. L., additional, Saettler, E., additional, Schaffer, K. K., additional, Schwendener, M. H., additional, Schülke, A., additional, Seifert, H., additional, Shatkay, M., additional, Simpson, J. J., additional, Sims, C. J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, A. R., additional, Smith, M. W. E., additional, Spreitzer, T., additional, Starinsky, N., additional, Steiger, T. D., additional, Stokstad, R. G., additional, Stonehill, L. C., additional, Storey, R. S., additional, Sur, B., additional, Tafirout, R., additional, Tagg, N., additional, Tanner, N. W., additional, Taplin, R. K., additional, Thorman, M., additional, Thornewell, P. M., additional, Trent, P. T., additional, Tserkovnyak, Y. I., additional, Van Berg, R., additional, Van de Water, R. G., additional, Virtue, C. J., additional, Waltham, C. E., additional, Wang, J.-X., additional, Wark, D. L., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J. R., additional, Wittich, P., additional, Wouters, J. M., additional, and Yeh, M., additional

Published
2002
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14. Measurement of the Rate ofνe+d→p+p+e−Interactions Produced byB8Solar Neutrinos at the Sudbury Neutrino Observatory

Author

Ahmad, Q. R., primary, Allen, R. C., additional, Andersen, T. C., additional, Anglin, J. D., additional, Bühler, G., additional, Barton, J. C., additional, Beier, E. W., additional, Bercovitch, M., additional, Bigu, J., additional, Biller, S., additional, Black, R. A., additional, Blevis, I., additional, Boardman, R. J., additional, Boger, J., additional, Bonvin, E., additional, Boulay, M. G., additional, Bowler, M. G., additional, Bowles, T. J., additional, Brice, S. J., additional, Browne, M. C., additional, Bullard, T. V., additional, Burritt, T. H., additional, Cameron, K., additional, Cameron, J., additional, Chan, Y. D., additional, Chen, M., additional, Chen, H. H., additional, Chen, X., additional, Chon, M. C., additional, Cleveland, B. T., additional, Clifford, E. T. H., additional, Cowan, J. H. M., additional, Cowen, D. F., additional, Cox, G. A., additional, Dai, Y., additional, Dai, X., additional, Dalnoki-Veress, F., additional, Davidson, W. F., additional, Doe, P. J., additional, Doucas, G., additional, Dragowsky, M. R., additional, Duba, C. A., additional, Duncan, F. A., additional, Dunmore, J., additional, Earle, E. D., additional, Elliott, S. R., additional, Evans, H. C., additional, Ewan, G. T., additional, Farine, J., additional, Fergani, H., additional, Ferraris, A. P., additional, Ford, R. J., additional, Fowler, M. M., additional, Frame, K., additional, Frank, E. D., additional, Frati, W., additional, Germani, J. V., additional, Gil, S., additional, Goldschmidt, A., additional, Grant, D. R., additional, Hahn, R. L., additional, Hallin, A. L., additional, Hallman, E. D., additional, Hamer, A., additional, Hamian, A. A., additional, Haq, R. U., additional, Hargrove, C. K., additional, Harvey, P. J., additional, Hazama, R., additional, Heaton, R., additional, Heeger, K. M., additional, Heintzelman, W. J., additional, Heise, J., additional, Helmer, R. L., additional, Hepburn, J. D., additional, Heron, H., additional, Hewett, J., additional, Hime, A., additional, Howe, M., additional, Hykawy, J. G., additional, Isaac, M. C. P., additional, Jagam, P., additional, Jelley, N. A., additional, Jillings, C., additional, Jonkmans, G., additional, Karn, J., additional, Keener, P. T., additional, Kirch, K., additional, Klein, J. R., additional, Knox, A. B., additional, Komar, R. J., additional, Kouzes, R., additional, Kutter, T., additional, Kyba, C. C. M., additional, Law, J., additional, Lawson, I. T., additional, Lay, M., additional, Lee, H. W., additional, Lesko, K. T., additional, Leslie, J. R., additional, Levine, I., additional, Locke, W., additional, Lowry, M. M., additional, Luoma, S., additional, Lyon, J., additional, Majerus, S., additional, Mak, H. B., additional, Marino, A. D., additional, McCauley, N., additional, McDonald, A. B., additional, McDonald, D. S., additional, McFarlane, K., additional, McGregor, G., additional, McLatchie, W., additional, Drees, R. Meijer, additional, Mes, H., additional, Mifflin, C., additional, Miller, G. G., additional, Milton, G., additional, Moffat, B. A., additional, Moorhead, M., additional, Nally, C. W., additional, Neubauer, M. S., additional, Newcomer, F. M., additional, Ng, H. S., additional, Noble, A. J., additional, Norman, E. B., additional, Novikov, V. M., additional, O'Neill, M., additional, Okada, C. E., additional, Ollerhead, R. W., additional, Omori, M., additional, Orrell, J. L., additional, Oser, S. M., additional, Poon, A. W. P., additional, Radcliffe, T. J., additional, Roberge, A., additional, Robertson, B. C., additional, Robertson, R. G. H., additional, Rowley, J. K., additional, Rusu, V. L., additional, Saettler, E., additional, Schaffer, K. K., additional, Schuelke, A., additional, Schwendener, M. H., additional, Seifert, H., additional, Shatkay, M., additional, Simpson, J. J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, A. R., additional, Smith, M. W. E., additional, Starinsky, N., additional, Steiger, T. D., additional, Stokstad, R. G., additional, Storey, R. S., additional, Sur, B., additional, Tafirout, R., additional, Tagg, N., additional, Tanner, N. W., additional, Taplin, R. K., additional, Thorman, M., additional, Thornewell, P., additional, Trent, P. T., additional, Tserkovnyak, Y. I., additional, Van Berg, R., additional, Van de Water, R. G., additional, Virtue, C. J., additional, Waltham, C. E., additional, Wang, J.-X., additional, Wark, D. L., additional, West, N., additional, Wilhelmy, J. B., additional, Wilkerson, J. F., additional, Wilson, J., additional, Wittich, P., additional, Wouters, J. M., additional, and Yeh, M., additional

Published
2001
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15. Measurement of the Solar Neutrino Capture Rate by SAGE and Implications for Neutrino Oscillations in Vacuum

Author

Abdurashitov, J. N., primary, Bowles, T. J., additional, Cherry, M. L., additional, Cleveland, B. T., additional, Davis, R., additional, Elliott, S. R., additional, Gavrin, V. N., additional, Girin, S. V., additional, Gorbachev, V. V., additional, Ibragimova, T. V., additional, Kalikhov, A. V., additional, Khairnasov, N. G., additional, Knodel, T. V., additional, Lande, K., additional, Mirmov, I. N., additional, Nico, J. S., additional, Shikhin, A. A., additional, Teasdale, W. A., additional, Veretenkin, E. P., additional, Vermul, V. M., additional, Wark, D. L., additional, Wildenhain, P. S., additional, Wilkerson, J. F., additional, Yants, V. E., additional, and Zatsepin, G. T., additional

Published
1999
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16. The Russian-American Gallium Experiment (SAGE) Cr Neutrino Source Measurement

Author

Abdurashitov, J. N., primary, Gavrin, V. N., additional, Girin, S. V., additional, Gorbachev, V. V., additional, Ibragimova, T. V., additional, Kalikhov, A. V., additional, Khairnasov, N. G., additional, Knodel, T. V., additional, Kornoukhov, V. N., additional, Mirmov, I. N., additional, Shikhin, A. A., additional, Veretenkin, E. P., additional, Vermul, V. M., additional, Yants, V. E., additional, Zatsepin, G. T., additional, Bowles, T. J., additional, Nico, J. S., additional, Teasdale, W. A., additional, Wark, D. L., additional, Cherry, M. L., additional, Karaulov, V. N., additional, Levitin, V. L., additional, Maev, V. I., additional, Nazarenko, P. I., additional, Shkol'nik, V. S., additional, Skorikov, N. V., additional, Cleveland, B. T., additional, Daily, T., additional, Davis, Jr., R., additional, Lande, K., additional, Lee, C. K., additional, Wildenhain, P. W., additional, Khomyakov, Yu. S., additional, Zvonarev, A. V., additional, Elliott, S. R., additional, and Wilkerson, J. F., additional

Published
1996
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17. Search for neutrinos from the Sun using the reactionGa71(νe,e−)71Ge

Author

Abazov, A. I., primary, Anosov, O. L., additional, Faizov, E. L., additional, Gavrin, V. N., additional, Kalikhov, A. V., additional, Knodel, T. V., additional, Knyshenko, I. I., additional, Kornoukhov, V. N., additional, Mezentseva, S. A., additional, Mirmov, I. N., additional, Ostrinsky, A. V., additional, Pshukov, A. M., additional, Revzin, N. E., additional, Shikhin, A. A., additional, Timofeyev, P. V., additional, Veretenkin, E. P., additional, Vermul, V. M., additional, Zatsepin, G. T., additional, Bowles, T. J., additional, Cleveland, B. T., additional, Elliott, S. R., additional, O’Brien, H. A., additional, Wark, D. L., additional, Wilkerson, J. F., additional, Davis, R., additional, Lande, K., additional, Cherry, M. L., additional, and Kouzes, R. T., additional

Published
1991
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18. Correspondence of electron spectra from photoionization and nuclear internal conversion

Author

Wark, D., primary, Bartlett, R., additional, Bowles, T., additional, Robertson, R., additional, Sivia, D., additional, Trela, W., additional, Wilkerson, J., additional, Brown, G., additional, Crasemann, B., additional, Sorensen, S., additional, Schaphorst, S., additional, Knapp, D., additional, Henderson, J., additional, Tulkki, J., additional, and Åberg, T., additional

Published
1991
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24. Search for an Annual Modulation in a p-Type Point Contact Germanium Dark Matter Detector.

Author

Aalseth, C. E., Barbeau, P. S., Colaresi, J., Collar, J. I., Leon, J. Diaz, Fast, J. E., Fields, N., Hossbach, T. W., Keillor, M. E., Kephart, J. D., Knecht, A., Marino, M. G., Miley, H. S., Miller, M. L., Orrell, J. L., Radford, D. C., Wilkerson, J. F., and Yocum, K. M.

Subjects
*GERMANIUM, *DARK matter, *WEAKLY interacting massive particles, *GALACTIC halos, *PRIMA facie evidence
Abstract

Fifteen months of cumulative CoGeNT data are examined for indications of an annual modulation, a predicted signature of weakly interacting massive particle (WIMP) interactions. Presently available data support the presence of a modulated component of unknown origin, with parameters prima facie compatible with a galactic halo composed of light-mass WIMPs. Unoptimized estimators yield a statistical significance for a modulation of ~2.8σ, limited by the short exposure. [ABSTRACT FROM AUTHOR]

Published
2011
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25. Exotic Dark Matter Search with the Majorana Demonstrator.

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kidd MF, Kim I, Kouzes RT, Lannen V TE, Li A, Lopez AM, López-Castaño JM, Martin EL, Martin RD, Massarczyk R, Meijer SJ, Mertens S, Oli TK, Othman G, Paudel LS, Pettus W, Poon AWP, Radford DC, Rager J, Reine AL, Rielage K, Ruof NW, Schaper DC, Tedeschi D, Varner RL, Vasilyev S, Wilkerson JF, Wiseman C, Xu W, Yu CH, and Zhu BX

Abstract

With excellent energy resolution and ultralow-level radiogenic backgrounds, the high-purity germanium detectors in the Majorana Demonstrator enable searches for several classes of exotic dark matter (DM) models. In this work, we report new experimental limits on keV-scale sterile neutrino DM via the transition magnetic moment from conversion to active neutrinos ν_{s}→ν_{a}. We report new limits on fermionic dark matter absorption (χ+A→ν+A) and sub-GeV DM-nucleus 3→2 scattering (χ+χ+A→ϕ+A), and new exclusion limits for bosonic dark matter (axionlike particles and dark photons). These searches utilize the (1-100)-keV low-energy region of a 37.5-kg y exposure collected by the Demonstrator between May 2016 and November 2019 using a set of ^{76}Ge-enriched detectors whose surface exposure time was carefully controlled, resulting in extremely low levels of cosmogenic activation.

Published
2024
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26. Constraints on the Decay of ^{180m}Ta.

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kim I, Kouzes RT, Lannen V TE, Li A, López-Castaño JM, Massarczyk R, Meijer SJ, Meijer W, Oli TK, Paudel LS, Pettus W, Poon AWP, Radford DC, Reine AL, Rielage K, Rouyer A, Ruof NW, Schaper DC, Schleich SJ, Smith-Gandy TA, Tedeschi D, Thompson JD, Varner RL, Vasilyev S, Watkins SL, Wilkerson JF, Wiseman C, Xu W, Yu CH, Alves DSM, Hebenstiel L, and Ramani H

Abstract

^{180m}Ta is a rare nuclear isomer whose decay has never been observed. Its remarkably long lifetime surpasses the half-lives of all other known β and electron capture decays due to the large K-spin differences and small energy differences between the isomeric and lower-energy states. Detecting its decay presents a significant experimental challenge but could shed light on neutrino-induced nucleosynthesis mechanisms, the nature of dark matter, and K-spin violation. For this study, we repurposed the Majorana Demonstrator, an experimental search for the neutrinoless double-beta decay of ^{76}Ge using an array of high-purity germanium detectors, to search for the decay of ^{180m}Ta. More than 17 kg, the largest amount of tantalum metal ever used for such a search, was installed within the ultralow-background detector array. In this Letter, we present results from the first year of Ta data taking and provide an updated limit for the ^{180m}Ta half-life on the different decay channels. With new limits up to 1.5×10^{19}  yr, we improved existing limits by 1-2 orders of magnitude which are the most sensitive searches for a single β and electron capture decay ever achieved. Over all channels, the decay can be excluded for T&#95;{1/2}<0.29×10^{18}  yr.

Published
2023
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27. Erratum: Search for Spontaneous Radiation from Wave Function Collapse in the Majorana Demonstrator [Phys. Rev. Lett. 129, 080401 (2022)].

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kim I, Kouzes RT, Lannen V TE, Li A, Lopez AM, López-Castaño JM, Martin EL, Martin RD, Massarczyk R, Meijer SJ, Oli TK, Othman G, Paudel LS, Pettus W, Poon AWP, Radford DC, Reine AL, Rielage K, Ruof NW, Tedeschi D, Varner RL, Vasilyev S, Wilkerson JF, Wiseman C, Xu W, Yu CH, and Zhu BX

Abstract

This corrects the article DOI: 10.1103/PhysRevLett.129.080401.

Published
2023
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28. Final Result of the Majorana Demonstrator's Search for Neutrinoless Double-β Decay in ^{76}Ge.

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Barton PJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kidd MF, Kim I, Kouzes RT, Lannen V TE, Li A, Lopez AM, López-Castaño JM, Martin EL, Martin RD, Massarczyk R, Meijer SJ, Mertens S, Oli TK, Othman G, Paudel LS, Pettus W, Poon AWP, Radford DC, Reine AL, Rielage K, Ruof NW, Schaper DC, Tedeschi D, Varner RL, Vasilyev S, Wilkerson JF, Wiseman C, Xu W, Yu CH, and Zhu BX

Abstract

The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of ^{76}Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats in a low-background shield. The arrays operated with up to 40.4 kg of detectors (27.2 kg enriched to ∼88% in ^{76}Ge). From these measurements, the Demonstrator has accumulated 64.5 kg yr of enriched active exposure. With a world-leading energy resolution of 2.52 keV FWHM at the 2039 keV Q&#95;{ββ} (0.12%), we set a half-life limit of 0νββ in ^{76}Ge at T&#95;{1/2}>8.3×10^{25}  yr (90% C.L.). This provides a range of upper limits on m&#95;{ββ} of (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.

Published
2023
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29. Search for Solar Axions via Axion-Photon Coupling with the Majorana Demonstrator.

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kidd MF, Kim I, Kouzes RT, Lannen V TE, Li A, Lopez AM, López-Castaño JM, Martin EL, Martin RD, Massarczyk R, Meijer SJ, Oli TK, Othman G, Paudel LS, Pettus W, Poon AWP, Radford DC, Reine AL, Rielage K, Ruof NW, Schaper DC, Tedeschi D, Varner RL, Vasilyev S, Wilkerson JF, Wiseman C, Xu W, Yu CH, and Zhu BX

Abstract

Axions were originally proposed to explain the strong-CP problem in QCD. Through axion-photon coupling, the Sun could be a major source of axions, which could be measured in solid state detection experiments with enhancements due to coherent Primakoff-Bragg scattering. The Majorana Demonstrator experiment has searched for solar axions with a set of ^{76}Ge-enriched high purity germanium detectors using a 33 kg-yr exposure collected between January, 2017 and November, 2019. A temporal-energy analysis gives a new limit on the axion-photon coupling as g&#95;{aγ}<1.45×10^{-9}  GeV^{-1} (95% confidence level) for axions with mass up to 100  eV/c^{2}. This improves laboratory-based limits between about 1  eV/c^{2} and 100  eV/c^{2}.

Published
2022
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30. Search for Spontaneous Radiation from Wave Function Collapse in the Majorana Demonstrator.

Author

Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bhimani KH, Blalock E, Bos B, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Clark ML, Cuesta C, Detwiler JA, Efremenko Y, Ejiri H, Elliott SR, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Henning R, Hervas Aguilar D, Hoppe EW, Hostiuc A, Kim I, Kouzes RT, Lannen V TE, Li A, Lopez AM, López-Castaño JM, Martin EL, Martin RD, Massarczyk R, Meijer SJ, Oli TK, Othman G, Paudel LS, Pettus W, Poon AWP, Radford DC, Reine AL, Rielage K, Ruof NW, Tedeschi D, Varner RL, Vasilyev S, Wilkerson JF, Wiseman C, Xu W, Yu CH, and Zhu BX

Abstract

The Majorana Demonstrator neutrinoless double-beta decay experiment comprises a 44 kg (30 kg enriched in ^{76}Ge) array of p-type, point-contact germanium detectors. With its unprecedented energy resolution and ultralow backgrounds, Majorana also searches for rare event signatures from beyond standard model physics in the low energy region below 100 keV. In this Letter, we test the continuous spontaneous localization (CSL) model, one of the mathematically well-motivated wave function collapse models aimed at solving the long-standing unresolved quantum mechanical measurement problem. While the CSL predicts the existence of a detectable radiation signature in the x-ray domain, we find no evidence of such radiation in the 19-100 keV range in a 37.5 kg-y enriched germanium exposure collected between December 31, 2015, and November 27, 2019, with the Demonstrator. We explored both the non-mass-proportional (n-m-p) and the mass-proportional (m-p) versions of the CSL with two different assumptions: that only the quasifree electrons can emit the x-ray radiation and that the nucleus can coherently emit an amplified radiation. In all cases, we set the most stringent upper limit to date for the white CSL model on the collapse rate, λ, providing a factor of 40-100 improvement in sensitivity over comparable searches. Our limit is the most stringent for large parts of the allowed parameter space. If the result is interpreted in terms of the Diòsi-Penrose gravitational wave function collapse model, the lower bound with a 95% confidence level is almost an order of magnitude improvement over the previous best limit.

Published
2022
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31. New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs.

Author

Aker M, Batzler D, Beglarian A, Behrens J, Berlev A, Besserer U, Bieringer B, Block F, Bobien S, Bornschein B, Bornschein L, Böttcher M, Brunst T, Caldwell TS, Carney RMD, Chilingaryan S, Choi W, Debowski K, Descher M, Díaz Barrero D, Doe PJ, Dragoun O, Drexlin G, Edzards F, Eitel K, Ellinger E, Engel R, Enomoto S, Felden A, Formaggio JA, Fränkle FM, Franklin GB, Friedel F, Fulst A, Gauda K, Gavin AS, Gil W, Glück F, Grössle R, Gumbsheimer R, Hannen V, Haußmann N, Helbing K, Hickford S, Hiller R, Hillesheimer D, Hinz D, Höhn T, Houdy T, Huber A, Jansen A, Karl C, Kellerer F, Kellerer J, Kleifges M, Klein M, Köhler C, Köllenberger L, Kopmann A, Korzeczek M, Kovalík A, Krasch B, Krause H, La Cascio L, Lasserre T, Le TL, Lebeda O, Lehnert B, Lokhov A, Machatschek M, Malcherek E, Mark M, Marsteller A, Martin EL, Melzer C, Mertens S, Mostafa J, Müller K, Neumann H, Niemes S, Oelpmann P, Parno DS, Poon AWP, Poyato JML, Priester F, Ráliš J, Ramachandran S, Robertson RGH, Rodejohann W, Rodenbeck C, Röllig M, Röttele C, Ryšavý M, Sack R, Saenz A, Salomon R, Schäfer P, Schimpf L, Schlösser M, Schlösser K, Schlüter L, Schneidewind S, Schrank M, Schwemmer A, Šefčík M, Sibille V, Siegmann D, Slezák M, Spanier F, Steidl M, Sturm M, Telle HH, Thorne LA, Thümmler T, Titov N, Tkachev I, Urban K, Valerius K, Vénos D, Vizcaya Hernández AP, Weinheimer C, Welte S, Wendel J, Wiesinger C, Wilkerson JF, Wolf J, Wüstling S, Wydra J, Xu W, Zadoroghny S, and Zeller G

Abstract

We report on the direct search for cosmic relic neutrinos using data acquired during the first two science campaigns of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity molecular tritium gas source are analyzed by a high-resolution MAC-E filter around the end point at 18.57 keV. The analysis is sensitive to a local relic neutrino overdensity ratio of η<9.7×10^{10}/α (1.1×10^{11}/α) at a 90% (95%) confidence level with α=1 (0.5) for Majorana (Dirac) neutrinos. A fit of the integrated electron spectrum over a narrow interval around the end point accounting for relic neutrino captures in the tritium source reveals no significant overdensity. This work improves the results obtained by the previous neutrino mass experiments at Los Alamos and Troitsk. We furthermore update the projected final sensitivity of the KATRIN experiment to η<1×10^{10}/α at 90% confidence level, by relying on updated operational conditions.

Published
2022
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32. Bound on 3+1 Active-Sterile Neutrino Mixing from the First Four-Week Science Run of KATRIN.

Author

Aker M, Altenmüller K, Beglarian A, Behrens J, Berlev A, Besserer U, Bieringer B, Blaum K, Block F, Bornschein B, Bornschein L, Böttcher M, Brunst T, Caldwell TS, La Cascio L, Chilingaryan S, Choi W, Díaz Barrero D, Debowski K, Deffert M, Descher M, Doe PJ, Dragoun O, Drexlin G, Dyba S, Edzards F, Eitel K, Ellinger E, Engel R, Enomoto S, Fedkevych M, Felden A, Formaggio JA, Fränkle FM, Franklin GB, Friedel F, Fulst A, Gauda K, Gil W, Glück F, Grössle R, Gumbsheimer R, Höhn T, Hannen V, Haußmann N, Helbing K, Hickford S, Hiller R, Hillesheimer D, Hinz D, Houdy T, Huber A, Jansen A, Köllenberger L, Karl C, Kellerer J, Kippenbrock L, Klein M, Kopmann A, Korzeczek M, Kovalík A, Krasch B, Krause H, Lasserre T, Le TL, Lebeda O, Le Guennic N, Lehnert B, Lokhov A, Lopez Poyato JM, Müller K, Machatschek M, Malcherek E, Mark M, Marsteller A, Martin EL, Melzer C, Mertens S, Niemes S, Oelpmann P, Osipowicz A, Parno DS, Poon AWP, Priester F, Röllig M, Röttele C, Rest O, Robertson RGH, Rodenbeck C, Ryšavý M, Sack R, Saenz A, Schaller A, Schäfer P, Schimpf L, Schlösser M, Schlösser K, Schlüter L, Schrank M, Schulz B, Šefčík M, Seitz-Moskaliuk H, Sibille V, Siegmann D, Slezák M, Spanier F, Steidl M, Sturm M, Sun M, Telle HH, Thümmler T, Thorne LA, Titov N, Tkachev I, Trost N, Vénos D, Valerius K, Vizcaya Hernández AP, Wüstling S, Weber M, Weinheimer C, Weiss C, Welte S, Wendel J, Wilkerson JF, Wolf J, Xu W, Yen YR, Zadoroghny S, and Zeller G

Abstract

We report on the light sterile neutrino search from the first four-week science run of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are analyzed by a high-resolution MAC-E filter down to 40 eV below the endpoint at 18.57 keV. We consider the framework with three active neutrinos and one sterile neutrino. The analysis is sensitive to the mass, m&#95;{4}, of the fourth mass state for m&#95;{4}^{2}≲1000  eV^{2} and to active-to-sterile neutrino mixing down to |U&#95;{e4}|^{2}≳2×10^{-2}. No significant spectral distortion is observed and exclusion bounds on the sterile mass and mixing are reported. These new limits supersede the Mainz results for m&#95;{4}^{2}≲1000  eV^{2} and improve the Troitsk bound for m&#95;{4}^{2}<30  eV^{2}. The reactor and gallium anomalies are constrained for 100<Δm&#95;{41}^{2}<1000  eV^{2}.

Published
2021
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33. Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN.

Author

Aker M, Altenmüller K, Arenz M, Babutzka M, Barrett J, Bauer S, Beck M, Beglarian A, Behrens J, Bergmann T, Besserer U, Blaum K, Block F, Bobien S, Bokeloh K, Bonn J, Bornschein B, Bornschein L, Bouquet H, Brunst T, Caldwell TS, La Cascio L, Chilingaryan S, Choi W, Corona TJ, Debowski K, Deffert M, Descher M, Doe PJ, Dragoun O, Drexlin G, Dunmore JA, Dyba S, Edzards F, Eisenblätter L, Eitel K, Ellinger E, Engel R, Enomoto S, Erhard M, Eversheim D, Fedkevych M, Felden A, Fischer S, Flatt B, Formaggio JA, Fränkle FM, Franklin GB, Frankrone H, Friedel F, Fuchs D, Fulst A, Furse D, Gauda K, Gemmeke H, Gil W, Glück F, Görhardt S, Groh S, Grohmann S, Grössle R, Gumbsheimer R, Ha Minh M, Hackenjos M, Hannen V, Harms F, Hartmann J, Haußmann N, Heizmann F, Helbing K, Hickford S, Hilk D, Hillen B, Hillesheimer D, Hinz D, Höhn T, Holzapfel B, Holzmann S, Houdy T, Howe MA, Huber A, James TM, Jansen A, Kaboth A, Karl C, Kazachenko O, Kellerer J, Kernert N, Kippenbrock L, Kleesiek M, Klein M, Köhler C, Köllenberger L, Kopmann A, Korzeczek M, Kosmider A, Kovalík A, Krasch B, Kraus M, Krause H, Kuckert L, Kuffner B, Kunka N, Lasserre T, Le TL, Lebeda O, Leber M, Lehnert B, Letnev J, Leven F, Lichter S, Lobashev VM, Lokhov A, Machatschek M, Malcherek E, Müller K, Mark M, Marsteller A, Martin EL, Melzer C, Menshikov A, Mertens S, Minter LI, Mirz S, Monreal B, Morales Guzmán PI, Müller K, Naumann U, Ndeke W, Neumann H, Niemes S, Noe M, Oblath NS, Ortjohann HW, Osipowicz A, Ostrick B, Otten E, Parno DS, Phillips DG, Plischke P, Pollithy A, Poon AWP, Pouryamout J, Prall M, Priester F, Röllig M, Röttele C, Ranitzsch PC, Rest O, Rinderspacher R, Robertson RGH, Rodenbeck C, Rohr P, Roll C, Rupp S, Ryšavý M, Sack R, Saenz A, Schäfer P, Schimpf L, Schlösser K, Schlösser M, Schlüter L, Schön H, Schönung K, Schrank M, Schulz B, Schwarz J, Seitz-Moskaliuk H, Seller W, Sibille V, Siegmann D, Skasyrskaya A, Slezák M, Špalek A, Spanier F, Steidl M, Steinbrink N, Sturm M, Suesser M, Sun M, Tcherniakhovski D, Telle HH, Thümmler T, Thorne LA, Titov N, Tkachev I, Trost N, Urban K, Vénos D, Valerius K, VanDevender BA, Vianden R, Vizcaya Hernández AP, Wall BL, Wüstling S, Weber M, Weinheimer C, Weiss C, Welte S, Wendel J, Wierman KJ, Wilkerson JF, Wolf J, Xu W, Yen YR, Zacher M, Zadorozhny S, Zbořil M, and Zeller G

Abstract

We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by a high-resolution MAC-E filter. A fit of the integrated electron spectrum over a narrow interval around the kinematic end point at 18.57 keV gives an effective neutrino mass square value of (-1.0&#95;{-1.1}^{+0.9})  eV^{2}. From this, we derive an upper limit of 1.1 eV (90% confidence level) on the absolute mass scale of neutrinos. This value coincides with the KATRIN sensitivity. It improves upon previous mass limits from kinematic measurements by almost a factor of 2 and provides model-independent input to cosmological studies of structure formation.

Published
2019
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34. First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as e/1000 with the Majorana Demonstrator.

Author

Alvis SI, Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bertrand FE, Brudanin V, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Cuesta C, Detwiler JA, Dunagan C, Efremenko Y, Ejiri H, Elliott SR, Gilliss T, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Hehn L, Henning R, Hoppe EW, Howe MA, Konovalov SI, Kouzes RT, Lopez AM, Martin RD, Massarczyk R, Meijer SJ, Mertens S, Myslik J, O'Shaughnessy C, Othman G, Pettus W, Poon AWP, Radford DC, Rager J, Reine AL, Rielage K, Robertson RGH, Ruof NW, Shanks B, Shirchenko M, Suriano AM, Tedeschi D, Varner RL, Vasilyev S, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yu CH, Yumatov V, Zhitnikov I, and Zhu BX

Abstract

The Majorana Demonstrator is an ultralow-background experiment searching for neutrinoless double-beta decay in ^{76}Ge. The heavily shielded array of germanium detectors, placed nearly a mile underground at the Sanford Underground Research Facility in Lead, South Dakota, also allows searches for new exotic physics. Free, relativistic, lightly ionizing particles with an electrical charge less than e are forbidden by the standard model but predicted by some of its extensions. If such particles exist, they might be detected in the Majorana Demonstrator by searching for multiple-detector events with individual-detector energy depositions down to 1 keV. This search is background-free, and no candidate events have been found in 285 days of data taking. New direct-detection limits are set for the flux of lightly ionizing particles for charges as low as e/1000.

Published
2018
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35. Search for Neutrinoless Double-β Decay in ^{76}Ge with the Majorana Demonstrator.

Author

Aalseth CE, Abgrall N, Aguayo E, Alvis SI, Amman M, Arnquist IJ, Avignone FT, Back HO, Barabash AS, Barbeau PS, Barton CJ, Barton PJ, Bertrand FE, Bode T, Bos B, Boswell M, Bradley AW, Brodzinski RL, Brudanin V, Busch M, Buuck M, Caldwell AS, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Collar JI, Combs DC, Cooper RJ, Cuesta C, Detwiler JA, Doe PJ, Dunmore JA, Efremenko Y, Ejiri H, Elliott SR, Fast JE, Finnerty P, Fraenkle FM, Fu Z, Fujikawa BK, Fuller E, Galindo-Uribarri A, Gehman VM, Gilliss T, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Hallin AL, Haufe CR, Hehn L, Henning R, Hoppe EW, Hossbach TW, Howe MA, Jasinski BR, Johnson RA, Keeter KJ, Kephart JD, Kidd MF, Knecht A, Konovalov SI, Kouzes RT, LaFerriere BD, Leon J, Lesko KT, Leviner LE, Loach JC, Lopez AM, Luke PN, MacMullin J, MacMullin S, Marino MG, Martin RD, Massarczyk R, McDonald AB, Mei DM, Meijer SJ, Merriman JH, Mertens S, Miley HS, Miller ML, Myslik J, Orrell JL, O'Shaughnessy C, Othman G, Overman NR, Perumpilly G, Pettus W, Phillips DG, Poon AWP, Pushkin K, Radford DC, Rager J, Reeves JH, Reine AL, Rielage K, Robertson RGH, Ronquest MC, Ruof NW, Schubert AG, Shanks B, Shirchenko M, Snavely KJ, Snyder N, Steele D, Suriano AM, Tedeschi D, Tornow W, Trimble JE, Varner RL, Vasilyev S, Vetter K, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yaver H, Young AR, Yu CH, Yumatov V, Zhitnikov I, Zhu BX, and Zimmermann S

Abstract

The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in ^{76}Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. Here we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Q&#95;{ββ} and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9×10^{25}  yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0&#95;{-2.5}^{+3.1}  counts/(FWHM t yr).

Published
2018
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36. New Limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator.

Author

Abgrall N, Arnquist IJ, Avignone FT, Barabash AS, Bertrand FE, Bradley AW, Brudanin V, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Cuesta C, Detwiler JA, Dunagan C, Efremenko Y, Ejiri H, Elliott SR, Gilliss T, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CRS, Henning R, Hoppe EW, Howard S, Howe MA, Jasinski BR, Keeter KJ, Kidd MF, Konovalov SI, Kouzes RT, Lopez AM, MacMullin J, Martin RD, Massarczyk R, Meijer SJ, Mertens S, O'Shaughnessy C, Poon AWP, Radford DC, Rager J, Reine AL, Rielage K, Robertson RGH, Shanks B, Shirchenko M, Suriano AM, Tedeschi D, Trimble JE, Varner RL, Vasilyev S, Vetter K, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yu CH, Yumatov V, Zhitnikov I, and Zhu BX

Abstract

We present new limits on exotic keV-scale physics based on 478 kg d of Majorana Demonstrator commissioning data. Constraints at the 90% confidence level are derived on bosonic dark matter (DM) and solar axion couplings, Pauli exclusion principle violating (PEPV) decay, and electron decay using monoenergetic peak signal limits above our background. Our most stringent DM constraints are set for 11.8 keV mass particles, limiting g&#95;{Ae}<4.5×10^{-13} for pseudoscalars and (α^{'}/α)<9.7×10^{-28} for vectors. We also report a 14.4 keV solar axion coupling limit of g&#95;{AN}^{eff}×g&#95;{Ae}<3.8×10^{-17}, a 1/2β^{2}<8.5×10^{-48} limit on the strength of PEPV electron transitions, and a lower limit on the electron lifetime of τ&#95;{e}>1.2×10^{24}  yr for e^{-}→ invisible.

Published
2017
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37. Independent measurement of the total active 8B solar neutrino flux using an array of 3He proportional counters at the Sudbury Neutrino Observatory.

Author

Aharmim B, Ahmed SN, Amsbaugh JF, Anthony AE, Banar J, Barros N, Beier EW, Bellerive A, Beltran B, Bergevin M, Biller SD, Boudjemline K, Boulay MG, Bowles TJ, Browne MC, Bullard TV, Burritt TH, Cai B, Chan YD, Chauhan D, Chen M, Cleveland BT, Cox-Mobrand GA, Currat CA, Dai X, Deng H, Detwiler J, DiMarco M, Doe PJ, Doucas G, Drouin PL, Duba CA, Duncan FA, Dunford M, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Ford RJ, Formaggio JA, Fowler MM, Gagnon N, Germani JV, Goldschmidt A, Goon JT, Graham K, Guillian E, Habib S, Hahn RL, Hallin AL, Hallman ED, Hamian AA, Harper GC, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Henning R, Hime A, Howard C, Howe MA, Huang M, Jagam P, Jamieson B, Jelley NA, Keeter KJ, Klein JR, Kormos LL, Kos M, Krüger A, Kraus C, Krauss CB, Kutter T, Kyba CC, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Loach JC, MacLellan R, Majerus S, Mak HB, Maneira J, Martin R, McBryde K, McCauley N, McDonald AB, McGee S, Mifflin C, Miller GG, Miller ML, Monreal B, Monroe J, Morissette B, Myers A, Nickel BG, Noble AJ, Oblath NS, O'Keeffe HM, Ollerhead RW, Gann GD, Oser SM, Ott RA, Peeters SJ, Poon AW, Prior G, Reitzner SD, Rielage K, Robertson BC, Robertson RG, Rollin E, Schwendener MH, Secrest JA, Seibert SR, Simard O, Simpson JJ, Sinclair L, Skensved P, Smith MW, Steiger TD, Stonehill LC, Tesić G, Thornewell PM, Tolich N, Tsui T, Tunnell CD, Van Wechel T, Van Berg R, VanDevender BA, Virtue CJ, Walker TJ, Wall BL, Waller D, Tseung HW, Wendland J, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wouters JM, Wright A, Yeh M, Zhang F, and Zuber K

Abstract

The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (nu&#95;x) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54&#95;-0.31;+0.33(stat)-0.34+0.36(syst)x10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Deltam2=7.59&#95;-0.21;+0.19x10(-5) eV2 and theta=34.4&#95;-1.2;+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO's previous results.

Published
2008
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38. Measurement of the total active 8B solar neutrino flux at the Sudbury Neutrino Observatory with enhanced neutral current sensitivity.

Author

Ahmed SN, Anthony AE, Beier EW, Bellerive A, Biller SD, Boger J, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Bullard TV, Chan YD, Chen M, Chen X, Cleveland BT, Cox GA, Dai X, Dalnoki-Veress F, Doe PJ, Dosanjh RS, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Formaggio JA, Fowler MM, Frame K, Fulsom BG, Gagnon N, Graham K, Grant DR, Hahn RL, Hall JC, Hallin AL, Hallman ED, Hamer AS, Handler WB, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hemingway RJ, Hime A, Howe MA, Jagam P, Jelley NA, Klein JR, Kos MS, Krumins AV, Kutter T, Kyba CC, Labranche H, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Levine I, Luoma S, MacLellan R, Majerus S, Mak HB, Maneira J, Marino AD, McCauley N, McDonald AB, McGee S, McGregor G, Mifflin C, Miknaitis KK, Miller GG, Moffat BA, Nally CW, Nickel BG, Noble AJ, Norman EB, Oblath NS, Okada CE, Ollerhead RW, Orrell JL, Oser SM, Ouellet C, Peeters SJ, Poon AW, Robertson BC, Robertson RG, Rollin E, Rosendahl SS, Rusu VL, Schwendener MH, Simard O, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith MW, Starinsky N, Stokstad RG, Stonehill LC, Tafirout R, Takeuchi Y, Tesić G, Thomson M, Thorman M, Van Berg R, Van de Water RG, Virtue CJ, Wall BL, Waller D, Waltham CE, Tseung HW, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wouters JM, Yeh M, and Zuber K

Abstract

The Sudbury Neutrino Observatory has precisely determined the total active (nu(x)) 8B solar neutrino flux without assumptions about the energy dependence of the nu(e) survival probability. The measurements were made with dissolved NaCl in heavy water to enhance the sensitivity and signature for neutral-current interactions. The flux is found to be 5.21 +/- 0.27(stat)+/-0.38(syst) x 10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of these and other solar and reactor neutrino results yields Deltam(2)=7.1(+1.2)(-0.6) x 10(-5) eV(2) and theta=32.5(+2.4)(-2.3) degrees. Maximal mixing is rejected at the equivalent of 5.4 standard deviations.

Published
2004
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39. Measurement of the rate of nu(e) + d --> p + p + e(-) interactions produced by (8)B solar neutrinos at the Sudbury Neutrino Observatory.

Author

Ahmad QR, Allen RC, Andersen TC, Anglin JD, Bühler G, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller S, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Burritt TH, Cameron K, Cameron J, Chan YD, Chen M, Chen HH, Chen X, Chon MC, Cleveland BT, Clifford ET, Cowan JH, Cowen DF, Cox GA, Dai Y, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunmore J, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Fowler MM, Frame K, Frank ED, Frati W, Germani JV, Gil S, Goldschmidt A, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer A, Hamian AA, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heaton R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MC, Jagam P, Jelley NA, Jillings C, Jonkmans G, Karn J, Keener PT, Kirch K, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CC, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Lowry MM, Luoma S, Lyon J, Majerus S, Mak HB, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, McLatchie W, Meijer Drees R, Mes H, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AW, Radcliffe TJ, Roberge A, Robertson BC, Robertson RG, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schuelke A, Schwendener MH, Seifert H, Shatkay M, Simpson JJ, Sinclair D, Skensved P, Smith AR, Smith MW, Starinsky N, Steiger TD, Stokstad RG, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell P, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson J, Wittich P, Wouters JM, and Yeh M

Abstract

Solar neutrinos from (8)B decay have been detected at the Sudbury Neutrino Observatory via the charged current (CC) reaction on deuterium and the elastic scattering (ES) of electrons. The flux of nu(e)'s is measured by the CC reaction rate to be straight phi(CC)(nu(e)) = 1.75 +/- 0.07(stat)(+0.12)(-0.11)(syst) +/- 0.05(theor) x 10(6) cm(-2) s(-1). Comparison of straight phi(CC)(nu(e)) to the Super-Kamiokande Collaboration's precision value of the flux inferred from the ES reaction yields a 3.3 sigma difference, assuming the systematic uncertainties are normally distributed, providing evidence of an active non- nu(e) component in the solar flux. The total flux of active 8B neutrinos is determined to be 5.44+/-0.99 x 10(6) cm(-2) s(-1).

Published
2001
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