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13 results on '"Duba, C.A."'

1. An array of low-background 3He proportional counters for the Sudbury Neutrino Observatory

Author

Amsbaugh, J.F., Anaya, J.M., Banar, J., Bowles, T.J., Browne, M.C., Bullard, T.V., Burritt, T.H., Cox-Mobrand, G.A., Dai, X., H.Deng, X., Di Marco, M., Doe, P.J., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Earle, E.D., Elliott, S.R., Esch, E.-I., Fergani, H., Formaggio, J.A., Fowler, M.M., Franklin, J.E., Geissbuehler, P., Germani, J.V., Goldschmidt, A., Guillian, E., Hallin, A.L., Harper, G., Harvey, P.J., Hazama, R., Heeger, K.M., Heise, J., Hime, A., Howe, M.A., Huang, M., Kormos, L.L., Kraus, C., Krauss, C.B., Law, J., Lawson, I.T., Lesko, K.T., Loach, J.C., Majerus, S., Manor, J., McGee, S., Miknaitis, K.K.S., Miller, G.G., Morissette, B., Myers, A., Oblath, N.S., O'Kee, H.M., Ollerhead, R.W., Peeters, S.J.M., Poon, A.W.P., Prior, G., Reitzner, S.D., Rielage, K., Robertson, R.G.H., Skensved, P., Smith, A.R., Smith, M.W.E., Steiger, T.D., Stonehill, L.C., Thornewell, P.M., Tolich, N., VanDevender, B.A., VanWechel, T.D., Wall, B.L., Tseung, H.W.C., Wendland, J., West, N., Wilhelmy, J.B., Wilkerson, J.F., and Wouters, J.M.

Abstract

An array of Neutral-Current Detectors (NCDs) has been built in order to make a unique measurement of the total active ux of solar neutrinos in the Sudbury Neutrino Observatory (SNO). Data in the third phase of the SNO experiment were collected between November 2004 and November 2006, after the NCD array was added to improve the neutral-current sensitivity of the SNO detector. This array consisted of 36 strings of proportional counters lled with a mixture of 3He and CF4 gas capable of detecting the neutrons liberated by the neutrino-deuteron neutral current reaction in the D2O, and four strings lled with a mixture of 4He and CF4 gas for background measurements. The proportional counter diameter is 5 cm. The total deployed array length was 398 m. The SNO NCD array is the lowest-radioactivity large array of proportional counters ever produced. This article describes the design, construction, deployment, and characterization of the NCD array, discusses the electronics and data acquisition system, and considers event signatures and backgrounds.

Published
2008

2. Measurement of the nue and Total 8B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase I Data Set

Author

Aharmim, B., Ahmad, Q.R., Ahmed, S.N., Allen, R.C., Andersen, T.C., Anglin, J.D., Buehler, G., Barton, J.C., Beier, E.W., Bercovitch, M., Bergevin, M., Bigu, J., Biller, S.D., Black, R.A., Blevis, I., Boardman, 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, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Currat, C.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Deng, H., DiMarco, M., Doe, P.J., Doucas, G., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Fleurot, F., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Goldschmidt, A., Goon, J.T.M., Graham, K., Grant, D.R., Guillian, E., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Henning, R., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Howard, C., Howe, M.A., Huang, M., Hykawy, J.G., Isaac, M.C.P., Jagam, P., Jamieson, B., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., and Keener, P.T.

Abstract

This article provides the complete description of results from the Phase I data set of the Sudbury Neutrino Observatory (SNO). The Phase I data set is based on a 0.65 kt-year exposure of heavy water to the solar 8B neutrino flux. Included here are details of the SNO physics and detector model, evaluations of systematic uncertainties, and estimates of backgrounds. Also discussed are SNO's approach to statistical extraction of the signals from the three neutrino reactions (charged current, neutral current, and elastic scattering) and the results of a search for a day-night asymmetry in the ?e flux. Under the assumption that the 8B spectrum is undistorted, the measurements from this phase yield a solar ?e flux of ?(?e) = 1.76+0.05?0.05(stat.)+0.09?0.09 (syst.) x 106 cm?2 s?1, and a non-?e component ?(? mu) = 3.41+0.45?0.45(stat.)+0.48?0.45 (syst.) x 106 cm?2 s?1. The sum of these components provides a total flux in excellent agreement with the predictions of Standard Solar Models. The day-night asymmetry in the ?e flux is found to be Ae = 7.0 +- 4.9 (stat.)+1.3?1.2 percent (sys.), when the asymmetry in the total flux is constrained to be zero.

Published
2007

3. Electron energy spectra, fluxes, and day-night asymmetries of boron-8 solar neutrinos from the 391-day salt phase sno data set

Author

Aharmim, B., Ahmed, S.N., Anthony, A.E., Beier, E.W., Bellerive, A., Bergevin, M., Biller, S.D., Boger, J., Boulay, M.G., Bowler, M.G., Bullard, T.V., Chan, Y.D., Chen, M., Chen, X., Cleveland, B.T., Cox, G.A., Currat, C.A., Dai, X., Dalnoki-Veress, F., Deng, H., Doe, P.J., Dosanjh, R.S., Doucas, G., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Fleurot, F., Formaggio, J.A., Frame, K., Frati, W., Fulsom, B.G., Gagnon, N., Graham, K., Grant, D.R., Hahn, R.L., Hall, J.C., Hallin, A.L., Hallman, E.D., Handler, W.B., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heelan, L., Heintzelman, W.J., Heise, J., Helmer, R.L., Hemingway, R.J., Hime, A., Howard, C., Howe, M.A., Huang, M., Jagam, P., Jelley, N.A., Klein, J.R., Kormos, L.L., Kos, M.S., Kruger, A., Kraus, C., Krauss, C.B., Krumins, A.V., Kutter, T., Kyba, C.C.M., Labranche, H., Lange, R., Law, J., Lawson, I.T., Lesko, K.T., Leslie, J.R., Levine, I., Loach, J.C., Luoma, S., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Marino, A.D., McCauley, N., McDonald, A.B., McGee, S., McGregor, G., Mifflin, C., Miknaitis, K.K.S., Moffat, B.A., Nally, C.W., Neubauer, M.S., Nickel, B.G., Noble, A.J., Norman, E.B., Oblath, N.S., Okada, C.E., Ollerhead, R.W., and Orrell, J.L.

Subjects
neutrinos, solar neutrinos
Abstract

Results are reported from the complete salt phase of the Sudbury Neutrino Observatory experiment in which NaCl was dissolved in the D_2O target. The addition of salt enhanced the signal from neutron capture, as compared to the pure D_2O detector. By making a statistical separation of charged-current events from other types based on event-isotropy criteria, the effective electron recoil energy spectrum has been extracted. In units of 106 cm-2 s-1, the total flux of active-flavor neutrinos from 8B decay in the Sun is found to be 4.94+0.21_-0.21(stat)+0.38_-0.34(syst) and the integral flux of electron neutrinos for an undistorted 8B spectrum is 1.68+0.06_-0.06(stat)+0.08_-0.09(syst); the signal from (nu_x,e) elastic scattering is equivalent to an electron-neutrino flux of 2.35+0.22-0.22(stat)+0.15_-0.15(syst). These results are consistent with those expected for neutrino oscillations with the so-called Large Mixing Angle parameters, and also with an undistorted spectrum. A search for matter-enhancement effects in the Earth through a possible day-night asymmetry in the charged-current integral rate is consistent with no asymmetry. Including results from other experiments, the best-fit values for two-neutrino mixing parameters are Delta m2 = (8.0+0.6_-0.4) x 10-5 eV2 and theta = 33.9 +2.4_-2.2 degrees.

Published
2005

4. Neutrino observations from the Sudbury Neutrino Observatory

Author

Ahmad, Q.R., Allen, R.C., Andersen, T.C., Anglin, J.D., Barton, J.C., Beier, E.W., Bercovitch, M., Bigu, J., Biller, S.D., Black, R.A., Blevis, I., Boardman, R.J., Boger, J., Bonvin, E., Boulay, M.G., Bowler, M.G., Bowles, T.J., Brice, S.J., Browne, M.C., Bullard, T.V., Buhler, G., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Clifford, E.T.H., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Doe, P.J., Doucas, G., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Graham, K., Grant, D.R., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Hykawy, J.G., Isaac, M.C.P., Jagam, P., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., Keener, P.T., 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., and Luoma, S.

Subjects
Physics of elementary particles and fields, solar neutrinos Sudbury Neutrino Observatory
Published
2001

5. An array of low-background 3He proportional counters for the Sudbury Neutrino Observatory

Author

Amsbaugh, J.F., Anaya, J.M., Banar, J., Bowles, T.J., Browne, M.C., Bullard, T.V., Burritt, T.H., Cox-Mobrand, G.A., Dai, X., Deng, H., Di Marco, M., Doe, P.J., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Earle, E.D., Elliott, S.R., Esch, E.-I., Fergani, H., Formaggio, J.A., Fowler, M.M., Franklin, J.E., Geissbühler, P., Germani, J.V., Goldschmidt, A., Guillian, E., Hallin, A.L., Harper, G., Harvey, P.J., Hazama, R., Heeger, K.M., Heise, J., Hime, A., Howe, M.A., Huang, M., Kormos, L.L., Kraus, C., Krauss, C.B., Law, J., Lawson, I.T., Lesko, K.T., Loach, J.C., Majerus, S., Manor, J., McGee, S., Miknaitis, K.K.S., Miller, G.G., Morissette, B., Myers, A., Oblath, N.S., O’Keeffe, H.M., Ollerhead, R.W., Peeters, S.J.M., Poon, A.W.P., Prior, G., Reitzner, S.D., Rielage, K., Robertson, R.G.H., Skensved, P., Smith, A.R., Smith, M.W.E., Steiger, T.D., Stonehill, L.C., Thornewell, P.M., Tolich, N., VanDevender, B.A., Van Wechel, T.D., Wall, B.L., Wan Chan Tseung, H., Wendland, J., West, N., Wilhelmy, J.B., Wilkerson, J.F., and Wouters, J.M.

Published
2007
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6. Low-background 3He proportional counters for use in the Sudbury Neutrino Observatory

Author

Browne, M.C., Bowles, T.J., Brice, S.J., Doe, P.J., Duba, C.A., Elliott, S.R., Esch, E.I., Fowler, M.M., Germani, J.V., Goldschmidt, A., Heeger, K.M., Hime, A., Lesko, K.T., Miller, G.G., Ollerhead, R.W., Poon, A.W.P., Robertson, R.G.H., Smith, M.W.E., Steiger, T.D., Stokstad, R.G., Thornewell, P.M., Wilhelmy, J.B., Wilkerson, J.F., and Wouters, J.M.

Subjects
Neutrinos -- Observations, Nuclear counters -- Design and construction, Business, Electronics, Electronics and electrical industries
Abstract

Current solar neutrino detectors measure a considerably lower flux of electron-flavor neutrinos than predicted by solar models. This could be an indication of neutrino oscillations, which would provide direct evidence that neutrinos have mass. The Sudbury Neutrino Observatory (SNO) was designed to detect all flavors of neutrinos, and will provide a rigorous test of this theory. The SNO detector's heavy water target gives it the unique ability to detect all non-sterile neutrino flavors via the neutral-current (NC) break-up of the deuteron. This NC interaction liberates a neutron which may be detected with an array of discrete 3He proportional counters. The strict radioactivity requirements imposed by the need for low backgrounds dictate the use of ultra-pure materials and processes in building these counters. Additionally, they must survive in the heavy water environment for several years. The design, construction, and testing of these unique counters are described.

Published
1999

7. Neutral current and day night measurements from the pure D 2O phase of SNO

Author

Hallin, A.L., Beier, E.W., Biller, S.D., Boulay, M.G., Bowler, M.G., Bowles, T.J., Brice, S.J., Bullard, T.V., Cameron, J., Chan, Y.D., Chen, X., Chen, M., Cleveland, B.T., Cox, G.A., Dai, X., Dalnoki-Veress, F., Doe, P.J., Doucas, G., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Formaggio, J.A., Fowler, M.M., Frame, K., Frati, W., Gagnon, N., Graham, K., Grant, D.R., Hahn, R.L., Hallman, E.D., Hamer, A.S., Handler, W.B., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hime, A., Howe, M., Jagam, P., Jelley, N.A., Kazkaz, K., Keener, P.T., Klein, J.R., Kutter, T., Kyba, C.C.M., Law, J., Lawson, I.T., Lesko, K.T., Leslie, J.R., Levine, I., Luoma, S., Majerus, S., Mak, H.B., Maneira, J., Manor, J., Marino, A.D., McCauley, N., McDonald, A.B., McGregor, G., Miller, G.G., Nally, C.W., Noble, A.J., Norman, E.B., Okada, C.E., Orrell, J.L., Oser, S.M., Poon, A.W.P., Robertson, B.C., Robertson, R.G.H., Rosendahl, S.S.E., Rusu, V.L., Schaffer, K.K., Schwendener, M.H., Simpson, J.J., Sims, C.J., Sinclair, D., Skensved, P., Smith, M.W.E., Spreitzer, T., Starinsky, N., Stokstad, R.G., Stonehill, L.C., Tafirout, R., Tagg, N., Van Berg, R., Van de Water, R.G., Virtue, C.J., Waltham, C.E., Wark, D.L., West, N., Wilhelmy, J.B., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., and Yeh, M.

Published
2003
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8. First neutrino observations from the Sudbury Neutrino Observatory

Author

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

Published
2001
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9. The Sudbury Neutrino Observatory

Author

Boger, J, Hahn, R.L, Rowley, J.K, Carter, A.L, Hollebone, B, Kessler, D, Blevis, I, Dalnoki-Veress, F, DeKok, A, Farine, J, Grant, D.R, Hargrove, C.K, Laberge, G, Levine, I, McFarlane, K, Mes, H, Noble, A.T, Novikov, V.M, O'Neill, M, Shatkay, M, Shewchuk, C, Sinclair, D, Clifford, E.T.H, Deal, R, Earle, E.D, Gaudette, E, Milton, G, Sur, B, Bigu, J, Cowan, J.H.M, Cluff, D.L, Hallman, E.D, Haq, R.U, Hewett, J, Hykawy, J.G, Jonkmans, G, Michaud, R, Roberge, A, Roberts, J, Saettler, E, Schwendener, M.H, Seifert, H, Sweezey, D, Tafirout, R, Virtue, C.J, Beck, D.N, Chan, Y.D, Chen, X, Dragowsky, M.R, Dycus, F.W, Gonzalez, J, Isaac, M.C.P, Kajiyama, Y, Koehler, G.W, Lesko, K.T, Moebus, M.C, Norman, E.B, Okada, C.E, Poon, A.W.P, Purgalis, P, Schuelke, A, Smith, A.R, Stokstad, R.G, Turner, S, Zlimen, I, Anaya, J.M, Bowles, T.J, Brice, S.J, Esch, Ernst-Ingo, Fowler, M.M, Goldschmidt, Azriel, Hime, A, McGirt, A.F, Miller, G.G, Teasdale, W.A, Wilhelmy, J.B, Wouters, J.M, Anglin, J.D, Bercovitch, M, Davidson, W.F, Storey, R.S, Biller, S, Black, R.A, Boardman, R.J, Bowler, M.G, Cameron, J, Cleveland, B, Ferraris, A.P, Doucas, G, Heron, H, Howard, C, Jelley, N.A, Knox, A.B, Lay, M, Locke, W, Lyon, J, Majerus, S, Moorhead, M, Omori, M, Tanner, N.W, Taplin, R.K, Thorman, M, Wark, D.L, West, N, Barton, J.C, Trent, P.T, Kouzes, R, Lowry, M.M, Bell, A.L, Bonvin, E, Boulay, M, Dayon, M, Duncan, F, Erhardt, L.S, Evans, H.C, Ewan, G.T, Ford, R, Hallin, A, Hamer, A, Hart, P.M, Harvey, P.J, Haslip, D, Hearns, C.A.W, Heaton, R, Hepburn, J.D, Jillings, C.J, Korpach, E.P, Lee, H.W, Leslie, J.R, Liu, M.-Q, Mak, H.B, McDonald, A.B, MacArthur, J.D, McLatchie, W, Moffat, B.A, Noel, S, Radcliffe, T.J, Robertson, B.C, Skensved, P, Stevenson, R.L, Zhu, X, Gil, S, Heise, J, Helmer, R.L, Komar, R.J, Nally, C.W, Ng, H.S, Waltham, C.E, Allen, R.C, Bühler, G, Chen, H.H, Aardsma, G, Andersen, T, Cameron, K, Chon, M.C, Hanson, R.H, Jagam, P, Karn, J, Law, J, Ollerhead, R.W, Simpson, J.J, Tagg, N, Wang, J.-X, Alexander, C, Beier, E.W, Cook, J.C, Cowen, D.F, Frank, E.D, Frati, W, Keener, P.T, Klein, J.R, Mayers, G, McDonald, D.S, Neubauer, M.S, Newcomer, F.M, Pearce, R.J, de Water, R.G.Van, Berg, R.Van, Wittich, P, Ahmad, Q.R, Beck, J.M, Browne, M.C, Burritt, T.H, Doe, P.J, Duba, C.A, Elliott, S.R, Franklin, J.E, Germani, J.V, Green, P, Hamian, A.A, Heeger, K.M, Howe, M, Drees, R.Meijer, Myers, A, Robertson, R.G.H, Smith, M.W.E, Steiger, T.D, Wechel, T.Van, and Wilkerson, J.F

Published
2000
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10. Determination of the νe and total 8B solar neutrino fluxes using the Sudbury Neutrino Observatory Phase I data set

Author

Aharmim, B., Ahmad, Q.R., Ahmed, S.N., Allen, R.C., Andersen, T.C., Anglin, J.D., Bühler, G., Barton, J.C., Beier, E.W., Bercovitch, M., Bergevin, M., Kirch, K., Klein, J.R., Knox, A.B., Komar, R.J., Kormos, L.L., Kos, M., Kouzes, R., Krüger, A., Kraus, C., Krauss, C.B., Bigu, J., Kutter, T., Kyba, C.C.M., Labranche, H., Lange, R., Law, J., Lawson, I.T., Lay, M., Lee, H.W., Lesko, K.T., Leslie, J.R., Biller, S.D., Levine, I., Loach, J.C., Locke, W., Luoma, S., Lyon, J., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Marino, A.D., Black, R.A., Martin, R., McCauley, N., McDonald, A.B., McDonald, D.S., McFarlane, K., McGee, S., McGregor, G., Drees, R.M., Mes, H., Mifflin, C., Blevis, I., Miknaitis, K.K.S., Miller, M.L., Milton, G., Moffat, B.A., Monreal, B., Moorhead, M., Morrissette, B., Nally, C.W., Neubauer, M.S., Newcomer, F.M., Boardman, R.J., Ng, H.S., Nickel, B.G., Noble, A.J., Norman, E.B., Novikov, V.M., Oblath, N.S., Okada, C.E., O'Keeffe, H.M., Ollerhead, R.W., Omori, M., Boger, J., Orrell, J.L., Oser, S.M., Ott, R., Peeters, S.J.M., Poon, A.W.P., Prior, G., Reitzner, S.D., Rielage, K., Roberge, A., Robertson, B.C., Bonvin, E., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schülke, A., Schwendener, M.H., Secrest, J.A., Seifert, H., Shatkay, M., Boulay, M.G., Simpson, J.J., Sims, C.J., Sinclair, D., Skensved, P., Smith, A.R., Smith, M.W.E., Starinsky, N., Steiger, T.D., Stokstad, R.G., Stonehill, L.C., Bowler, M.G., Storey, R.S., Sur, B., Tafirout, R., Tagg, N., Takeuchi, Y., Tanner, N.W., Taplin, R.K., Thorman, M., Thornewell, P.M., Tolich, N., Bowles, T.J., Trent, P.T., Tserkovnyak, Y.I., Tsui, T., Tunnell, C.D., Van Berg, R., Van De Water, R.G., Virtue, C.J., Walker, T.J., Wall, B.L., Waltham, C.E., Brice, S.J., Tseung, H.W.C., Wang, J.X., Wark, D.L., Wendland, J., West, N., Wilhelmy, J.B., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., Browne, M.C., Wright, A., Yeh, M., Zuber, K., Bullard, T.V., Burritt, T.H., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Currat, C.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Deng, H., Dimarco, M., Doe, P.J., Doucas, G., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Fleurot, F., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Goldschmidt, A., Goon, J.T.M., Graham, K., Grant, D.R., Guillian, E., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Henning, R., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Howard, C., Howe, M.A., Huang, M., Hykaway, J.G., Isaac, M.C.P., Jagam, P., Jamieson, B., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., Keener, P.T., Aharmim, B., Ahmad, Q.R., Ahmed, S.N., Allen, R.C., Andersen, T.C., Anglin, J.D., Bühler, G., Barton, J.C., Beier, E.W., Bercovitch, M., Bergevin, M., Kirch, K., Klein, J.R., Knox, A.B., Komar, R.J., Kormos, L.L., Kos, M., Kouzes, R., Krüger, A., Kraus, C., Krauss, C.B., Bigu, J., Kutter, T., Kyba, C.C.M., Labranche, H., Lange, R., Law, J., Lawson, I.T., Lay, M., Lee, H.W., Lesko, K.T., Leslie, J.R., Biller, S.D., Levine, I., Loach, J.C., Locke, W., Luoma, S., Lyon, J., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Marino, A.D., Black, R.A., Martin, R., McCauley, N., McDonald, A.B., McDonald, D.S., McFarlane, K., McGee, S., McGregor, G., Drees, R.M., Mes, H., Mifflin, C., Blevis, I., Miknaitis, K.K.S., Miller, M.L., Milton, G., Moffat, B.A., Monreal, B., Moorhead, M., Morrissette, B., Nally, C.W., Neubauer, M.S., Newcomer, F.M., Boardman, R.J., Ng, H.S., Nickel, B.G., Noble, A.J., Norman, E.B., Novikov, V.M., Oblath, N.S., Okada, C.E., O'Keeffe, H.M., Ollerhead, R.W., Omori, M., Boger, J., Orrell, J.L., Oser, S.M., Ott, R., Peeters, S.J.M., Poon, A.W.P., Prior, G., Reitzner, S.D., Rielage, K., Roberge, A., Robertson, B.C., Bonvin, E., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schülke, A., Schwendener, M.H., Secrest, J.A., Seifert, H., Shatkay, M., Boulay, M.G., Simpson, J.J., Sims, C.J., Sinclair, D., Skensved, P., Smith, A.R., Smith, M.W.E., Starinsky, N., Steiger, T.D., Stokstad, R.G., Stonehill, L.C., Bowler, M.G., Storey, R.S., Sur, B., Tafirout, R., Tagg, N., Takeuchi, Y., Tanner, N.W., Taplin, R.K., Thorman, M., Thornewell, P.M., Tolich, N., Bowles, T.J., Trent, P.T., Tserkovnyak, Y.I., Tsui, T., Tunnell, C.D., Van Berg, R., Van De Water, R.G., Virtue, C.J., Walker, T.J., Wall, B.L., Waltham, C.E., Brice, S.J., Tseung, H.W.C., Wang, J.X., Wark, D.L., Wendland, J., West, N., Wilhelmy, J.B., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., Browne, M.C., Wright, A., Yeh, M., Zuber, K., Bullard, T.V., Burritt, T.H., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Currat, C.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Deng, H., Dimarco, M., Doe, P.J., Doucas, G., Dragowsky, M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Fleurot, F., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Goldschmidt, A., Goon, J.T.M., Graham, K., Grant, D.R., Guillian, E., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Henning, R., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Howard, C., Howe, M.A., Huang, M., Hykaway, J.G., Isaac, M.C.P., Jagam, P., Jamieson, B., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., and Keener, P.T.

Abstract

This article provides the complete description of results from the Phase I data set of the Sudbury Neutrino Observatory (SNO). The Phase I data set is based on a 0.65 kiloton-year exposure of 2H2O (in the following denoted as D2O) to the solar 8B neutrino flux. Included here are details of the SNO physics and detector model, evaluations of systematic uncertainties, and estimates of backgrounds. Also discussed are SNO's approach to statistical extraction of the signals from the three neutrino reactions (charged current, neutral current, and elastic scattering) and the results of a search for a day-night asymmetry in the νe flux. Under the assumption that the 8B spectrum is undistorted, the measurements from this phase yield a solar νe flux of (νe)=1.76+0.05-0. 05(stat.)+0.09-0.09(syst.)×106 cm-2 s-1 and a non-νe component of (νμτ)=3.41+0.45-0.45(stat.)+0.45-0.48(syst.)×106 cm-2 s-1. The sum of these components provides a total flux in excellent agreement with the predictions of standard solar models. The day-night asymmetry in the νe flux is found to be Ae=7.0±4.9(stat.)+1.3-1.2%(syst.), when the asymmetry in the total flux is constrained to be zero.

Published
2007

11. Data acquisition for the Helium and Lead Observatory.

Author

Schumaker, M.A., Boeltzig, A., Burritt, T.H., Duba, C.A., Duncan, F.A., Farine, J., Habig, A., Hime, A., Howe, M.A., Kielbik, A., Kraus, C., Nicholson, K., Robertson, R.G.H., Scholberg, K., Secrest, J., Shantz, T.C., Virtue, C.J., Wilkerson, J.F., Yen, S., and Zuber, K.

Published
2010
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12. Neutral current and day night measurements from the pure D2O phase of SNO

Author

Hallin, A.L., primary, Beier, E.W., additional, Biller, S.D., additional, Boulay, M.G., additional, Bowler, M.G., additional, Bowles, T.J., additional, Brice, S.J., additional, Bullard, T.V., additional, Cameron, J., additional, Chan, Y.D., additional, Chen, X., additional, Chen, M., additional, Cleveland, B.T., additional, Cox, G.A., additional, Dai, X., additional, Dalnoki-Veress, 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, Formaggio, J.A., additional, Fowler, M.M., additional, Frame, K., additional, Frati, W., additional, Gagnon, N., additional, Graham, K., additional, Grant, D.R., additional, Hahn, R.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, Hime, A., additional, Howe, M., additional, Jagam, P., additional, Jelley, N.A., additional, Kazkaz, K., additional, Keener, P.T., additional, Klein, J.R., additional, Kutter, T., additional, Kyba, C.C.M., additional, Law, J., additional, Lawson, I.T., additional, Lesko, K.T., additional, Leslie, J.R., additional, Levine, I., additional, Luoma, S., 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, McGregor, G., additional, Miller, G.G., additional, Nally, C.W., additional, Noble, A.J., additional, Norman, E.B., additional, Okada, C.E., additional, Orrell, J.L., additional, Oser, S.M., additional, Poon, A.W.P., additional, Robertson, B.C., additional, Robertson, R.G.H., additional, Rosendahl, S.S.E., additional, Rusu, V.L., additional, Schaffer, K.K., additional, Schwendener, M.H., additional, Simpson, J.J., additional, Sims, C.J., additional, Sinclair, D., additional, Skensved, P., additional, Smith, M.W.E., additional, Spreitzer, T., additional, Starinsky, N., additional, Stokstad, R.G., additional, Stonehill, L.C., additional, Tafirout, R., additional, Tagg, N., additional, Van Berg, R., additional, Van de Water, R.G., additional, Virtue, C.J., additional, Waltham, C.E., 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
2003
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13. Low-background /sup 3/He proportional counters for use in the Sudbury neutrino observatory

Author

Browne, M.C., primary, Bowles, T.J., additional, Brice, S.J., additional, Doe, P.J., additional, Duba, C.A., additional, Elliott, S.R., additional, Esch, E.I., additional, Fowler, M.M., additional, Germani, J.V., additional, Goldschmidt, A., additional, Heeger, K.M., additional, Hime, A., additional, Lesko, K.T., additional, Miller, G.G., additional, Ollerhead, R.W., additional, Poon, A.W.P., additional, Robertson, R.G.H., additional, Smith, M.W.E., additional, Steiger, T.D., additional, Stokstad, R.G., additional, Thornewell, P.M., additional, Wilhelmy, J.B., additional, Wilkerson, J.F., additional, and Wouters, J.M., additional

Published
1999
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