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3 results on '"Smith, M.W.E."'

1. 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., Keener, P.T., Kirch, K., Klein, J.R., Knox, A.B., Komar, R.J., Kormos, L.L., Kos, M., Kouzes, R., Krueger, A., Kraus, C., Krauss, C.B., 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., Levine, I., Loach, J.C., Locke, W., Luoma, S., Lyon, J., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Marino, A.D., Martin, R., McCauley, N., McDonald, A.B., McDonald, D.S., McFarlane, K., McGee, S., McGregor, G., Meijer Drees, R., Mes, H., Mifflin, C., 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., 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., 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., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schuelke, A., Schwendener, M.H., Secrest, J.A., Seifert, H., Shatkay, M., 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., Storey, R.S., Sur, B., Tafirout, R., Tagg, N., Takeuchi, Y., Tanner, N.W., Taplin, R.K., Thorman, M., Thornewell, P.M., Tolich, N., 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., Tseung, W.C.H., Wang, J.-X., Wark, D.L., Wendland, J., West, N., Wilhelmy, J.B., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., Wright, A., Yeh, M., and Zuber, K.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment
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

2. 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., Orrell, J.L., Oser, S.M., Ouellet, C., Peeters, S.J.M., Poon, A.W.P., Rielage, K., Robertson, B.C., Robertson, R.G.H., Rollin, E., Rosendahl, S.S.E., Rusu, V.L., Schwendener, M.H., Seibert, S.R., Simard, O., Simpson, J.J., Sims, C.J., Sinclair, D., Skensved, P., Smith, M.W.E., Starinsky, N., Stokstad, R.G., Stonehill, L.C., Tafirout, R., Takeuchi, Y., Tesic, G., Thomson, M., Thorman, M., Tsui, T., Van, R., Berg, Van, R.G., Water, de, Virtue, C.J., Wall, B.L., Waller, D., Waltham, C.E., Wan, H., Tseung, Chan, Wark, D.L., Wendland, J., West, N., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., Wright, A., Yeh, M., and Zuber, K.

Subjects
neutrinos, solar neutrinos, High Energy Physics::Experiment
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

3. 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., Luoma, S., Lyon, J., Majerus, S., Mak, H.B., Maneira, J., Manor, J., Marino, A.D., McCauley, N., McDonald, D.S., McDonald, A.B., McFarlane, K., McGregor, G., Meijer, R., 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., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schaffer, K.K., Schwendener, M.H., Schulke, A., Seifert, H., Shatkay, M., Simpson, J.J., Sims, C.J., Sinclair, D., Skensved, P., Smith, A.R., Smith, M.W.E., Spreitzer, T., Starinsky, N., Steiger, T.D., Stokstad, R.G., Stonehill, L.C., Storey, R.S., Sur, B., Tafirout, R., Tagg, N., Tanner, N.W., Taplin, R.K., Thorman, M., Thornewell, P.M., Trent, P.T., Tserkovnyak, Y.I., Van, R., Van, R.G., Virtue, C.J., Waltham, C.E., Wang, J.-X., Wark, D.L., West, N., Wilhelmy, J.B., Wilkerson, J.F., Wilson, J.R., Wittich, P., Wouters, J.M., and Yeh, M.

Subjects
solar neutrinos Sudbury Neutrino Observatory, Physics
Published
2001

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