Author: "Jagam, P." - Searchworks@Jio Institute Digital Library Search Results

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1. Search for $hep$ solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory

Author: Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Blucher, E., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kraus, C., Krauss, C. B., Krüger, A., Kutter, T., Kyba, C. C. M., Labe, K., Land, B. J., Lange, R., LaTorre, A., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tešić, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment, Nuclear Experiment
Abstract: A search has been performed for neutrinos from two sources, the $hep$ reaction in the solar $pp$ fusion chain and the $\nu_e$ component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino Observatory with a total exposure of 2.47 kton-years after fiducialization. The $hep$ search is performed using both a single-bin counting analysis and a likelihood fit. We find a best-fit flux that is compatible with solar model predictions while remaining consistent with zero flux, and set a one-sided upper limit of $\Phi_{hep} < 30\times10^{3}~\mathrm{cm}^{-2}~\mathrm{s}^{-1}$ [90% credible interval (CI)]. No events are observed in the DSNB search region, and we set an improved upper bound on the $\nu_e$ component of the DSNB flux of $\Phi^\mathrm{DSNB}_{\nu_e} < 19~\textrm{cm}^{-2}~\textrm{s}^{-1}$ (90% CI) in the energy range $22.9 < E_\nu < 36.9$~MeV., Comment: 11 pages, 6 figures
Published: 2020
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2. Cosmogenic Neutron Production at the Sudbury Neutrino Observatory

Author: Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Curley, R., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Kéfélian, C., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kr\u, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Land, B. J., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Teš, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment, Nuclear Experiment
Abstract: Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even in detectors located deep underground. Models for the production of these neutrons have been tested against previous experimental data, but the extrapolation to deeper sites is not well understood. Here we report results from an analysis of cosmogenically produced neutrons at the Sudbury Neutrino Observatory. A specific set of observables are presented, which can be used to benchmark the validity of GEANT4 physics models. In addition, the cosmogenic neutron yield, in units of $10^{-4}\;\text{cm}^{2}/\left(\text{g}\cdot\mu\right)$, is measured to be $7.28 \pm 0.09\;\text{stat.} ^{+1.59}_{-1.12}\;\text{syst.}$ in pure heavy water and $7.30 \pm 0.07\;\text{stat.} ^{+1.40}_{-1.02}\;\text{syst.}$ in NaCl-loaded heavy water. These results provide unique insights into this potential background source for experiments at SNOLAB.
Published: 2019
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3. Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kruger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Land, B. J., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Singh, J., Skensved, P., Smiley, M., Sonley, T. J., Stonehill, L. C., Tesic, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment
Abstract: Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using GENIE and a minimally modified version of GEANT4. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasi-elastic interaction candidates, also as a function of the neutrino energy. This study is also performed classifying the complete sample into two pairs of event categories: charged current quasi-elastic and non charged current quasi-elastic, and $\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below $2\sigma$ for some intermediate energies.
Published: 2019
Full Text: View/download PDF

4. Search for hep solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Blucher, E, Bonventre, R, Boudjemline, K, Boulay, MG, Cai, B, Callaghan, EJ, Caravaca, J, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Descamps, FB, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, PL, Dunford, M, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Gilje, K, Goon, JTM, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Kraus, C, Krauss, CB, Krüger, A, Kutter, T, Kyba, CCM, Labe, K, Land, BJ, Lange, R, Latorre, A, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, Maclellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, Mastbaum, A, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O'Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Orebi Gann, GD, Oser, SM, Ott, RA, Peeters, SJM, and Poon, AWP
Subjects: hep-ex, nucl-ex
Abstract: A search has been performed for neutrinos from two sources, the hep reaction in the solar pp fusion chain and the νe component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino Observatory with a total exposure of 2.47 kton-years after fiducialization. The hep search is performed using both a single-bin counting analysis and a likelihood fit. We find a best-fit flux that is compatible with solar model predictions while remaining consistent with zero flux, and set a one-sided upper limit of φhep
Published: 2020

5. Constraints on Neutrino Lifetime from the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Kéfélian, C., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Krüger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Land, B. J., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tešić, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment, Nuclear Experiment
Abstract: The long baseline between the Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decay would be an energy-dependent distortion of the traditional survival probability which can be fit for using well-developed and high precision analysis methods. Here a model including neutrino decay is fit to all three phases of $^8$B solar neutrino data taken by the Sudbury Neutrino Observatory. This fit constrains the lifetime of neutrino mass state $\nu_2$ to be ${>8.08\times10^{-5}}$ s/eV at $90\%$ confidence. An analysis combining this SNO result with those from other solar neutrino experiments results in a combined limit for the lifetime of mass state $\nu_2$ of ${>1.04\times10^{-3}}$ s/eV at $99\%$ confidence.
Published: 2018
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6. Tests of Lorentz invariance at the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Blucher, E., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Kefelian, C., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kruger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Labe, K., Land, B. J., Lange, R., LaTorre, A., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tesic, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Winchester, T., Wilson, J. R., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment, Nuclear Experiment
Abstract: Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well-founded. Data from all phases of the Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, are analyzed for possible violations of Lorentz symmetry in the neutrino sector. Such violations would appear as one of eight possible signal types in the detector: six seasonal variations in the solar electron neutrino survival probability differing in energy and time dependence, and two shape changes to the oscillated solar neutrino energy spectrum. No evidence for such signals is observed, and limits on the size of such effects are established in the framework of the Standard Model Extension, including 40 limits on perviously unconstrained operators and improved limits on 15 additional operators. This makes limits on all minimal, Dirac-type Lorentz violating operators in the neutrino sector available for the first time.
Published: 2018
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7. Cosmogenic neutron production at the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Bonventre, R, Boudjemline, K, Boulay, MG, Cai, B, Callaghan, EJ, Caravaca, J, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Curley, R, Dai, X, Deng, H, Descamps, FB, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, PL, Dunford, M, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Gilje, K, Goon, JTM, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Kéfélian, C, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Krüger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Land, BJ, Lange, R, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, MacLellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, Mastbaum, A, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O'Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Orebi Gann, GD, Oser, SM, Ott, RA, Peeters, SJM, Poon, AWP, and Prior, G
Subjects: hep-ex, nucl-ex
Abstract: Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even in detectors located deep underground. Models for the production of these neutrons have been tested against previous experimental data, but the extrapolation to deeper sites is not well understood. Here we report results from an analysis of cosmogenically produced neutrons at the Sudbury Neutrino Observatory. A specific set of observables are presented, which can be used to benchmark the validity of geant4 physics models. In addition, the cosmogenic neutron yield, in units of 10-4 cm2/(g·μ), is measured to be 7.28±0.09(stat)-1.12+1.59(syst) in pure heavy water and 7.30±0.07(stat)-1.02+1.40(syst) in NaCl-loaded heavy water. These results provide unique insights into this potential background source for experiments at SNOLAB.
Published: 2019

8. Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Bonventre, R, Boudjemline, K, Boulay, MG, Cai, B, Callaghan, EJ, Caravaca, J, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Descamps, FB, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, P-L, Dunford, M, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Gilje, K, Goon, JTM, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Kruger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Land, BJ, Lange, R, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, MacLellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, Mastbaum, A, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O'Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Gann, GD Orebi, Oser, SM, Ott, RA, Peeters, SJM, Poon, AWP, Prior, G, Reitzner, SD, and Rielage, K
Subjects: hep-ex
Abstract: Neutron production in GeV-scale neutrino interactions is a poorly studiedprocess. We have measured the neutron multiplicities in atmospheric neutrinointeractions in the Sudbury Neutrino Observatory experiment and compared themto the prediction of a Monte Carlo simulation using GENIE and a minimallymodified version of GEANT4. We analyzed 837 days of exposure corresponding toPhase I, using pure heavy water, and Phase II, using a mixture of Cl in heavywater. Neutrons produced in atmospheric neutrino interactions were identifiedwith an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively.The neutron production is measured as a function of the visible energy of theneutrino interaction and, for charged current quasi-elastic interactioncandidates, also as a function of the neutrino energy. This study is alsoperformed classifying the complete sample into two pairs of event categories:charged current quasi-elastic and non charged current quasi-elastic, and$\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data andMonte Carlo for both phases, with some small tension with a statisticalsignificance below $2\sigma$ for some intermediate energies.
Published: 2019

9. Constraints on neutrino lifetime from the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Bonventre, R, Boudjemline, K, Boulay, MG, Cai, B, Callaghan, EJ, Caravaca, J, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Descamps, FB, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, P-L, Dunford, M, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Gilje, K, Goon, J TM, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Kéfélian, C, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Krüger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Land, BJ, Lange, R, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, MacLellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, Mastbaum, A, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O’Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Gann, GD Orebi, Oser, SM, Ott, RA, Peeters, SJM, Poon, AWP, Prior, G, and Reitzner, SD
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, nucl-ex
Abstract: The long baseline between Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decay would be an energy-dependent distortion of the traditional survival probability which can be fit for using well-developed and high-precision analysis methods. Here a model including neutrino decay is fit to all three phases of B8 solar neutrino data taken by the Sudbury Neutrino Observatory (SNO). This fit constrains the lifetime of neutrino mass state ν2 to be >8.08×10-5 s/eV at 90% confidence. An analysis combining this SNO result with those from other solar neutrino experiments results in a combined limit for the lifetime of mass state ν2 of >1.92×10-3 s/eV at 90% confidence.
Published: 2019

10. The search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Boudjemline, K., Boulay, M. G., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Duncan, F. A., Dunford, M., Earle, E. D., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kruger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., OrebiGann, G. D., Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Simpson, J. J., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tesic, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract: Tests on $B-L$ symmetry breaking models are important probes to search for new physics. One proposed model with $\Delta(B-L)=2$ involves the oscillations of a neutron to an antineutron. In this paper a new limit on this process is derived for the data acquired from all three operational phases of the Sudbury Neutrino Observatory experiment. The search was concentrated in oscillations occurring within the deuteron, and 23 events are observed against a background expectation of 30.5 events. These translate to a lower limit on the nuclear lifetime of $1.48\times 10^{31}$ years at 90% confidence level (CL) when no restriction is placed on the signal likelihood space (unbounded). Alternatively, a lower limit on the nuclear lifetime was found to be $1.18\times 10^{31}$ years at 90% CL when the signal was forced into a positive likelihood space (bounded). Values for the free oscillation time derived from various models are also provided in this article. This is the first search for neutron-antineutron oscillation with the deuteron as a target., Comment: 14 pages, 8 figures
Published: 2017
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11. Tests of Lorentz invariance at the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Blucher, E, Bonventre, R, Boudjemline, K, Boulay, MG, Cai, B, Callaghan, EJ, Caravaca, J, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Descamps, FB, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, P-L, Dunford, M, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Gilje, K, Goon, J TM, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Kéfélian, C, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Krüger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Labe, K, Land, BJ, Lange, R, LaTorre, A, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, MacLellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, Mastbaum, A, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O’Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Gann, GD Orebi, Oser, SM, Ott, RA, and Peeters, SJM
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, nucl-ex
Abstract: Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well founded. Data from all phases of the Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, are analyzed for possible violations of Lorentz symmetry in the neutrino sector. Such violations would appear as one of eight possible signal types in the detector: six seasonal variations in the solar electron neutrino survival probability differing in energy and time dependence and two shape changes to the oscillated solar neutrino energy spectrum. No evidence for such signals is observed, and limits on the size of such effects are established in the framework of the standard model extension, including 38 limits on previously unconstrained operators and improved limits on 16 additional operators. This makes limits on all minimal, Dirac-type Lorentz violating operators in the neutrino sector available for the first time.
Published: 2018

12. Search for neutron-Antineutron oscillations at the Sudbury Neutrino Observatory

Author: Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Boudjemline, K, Boulay, MG, Cai, B, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Detwiler, JA, Doe, PJ, Doucas, G, Drouin, PL, Duncan, FA, Dunford, M, Earle, ED, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Goon, JT, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, Heise, J, Helmer, RL, Hime, A, Howard, C, Huang, M, Jagam, P, Jamieson, B, Jelley, NA, Jerkins, M, Keeter, KJ, Klein, JR, Kormos, LL, Kos, M, Krüger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Lange, R, Law, J, Lawson, IT, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, Maclellan, R, Majerus, S, Mak, HB, Maneira, J, Martin, RD, McCauley, N, McDonald, AB, McGee, SR, Miller, ML, Monreal, B, Monroe, J, Nickel, BG, Noble, AJ, O'Keeffe, HM, Oblath, NS, Okada, CE, Ollerhead, RW, Orebi Gann, GD, Oser, SM, Ott, RA, Peeters, SJM, Poon, AWP, Prior, G, Reitzner, SD, Rielage, K, Robertson, BC, Robertson, RGH, Schwendener, MH, Secrest, JA, and Seibert, SR
Subjects: hep-ex, nucl-ex, physics.ins-det
Abstract: Tests on B-L symmetry breaking models are important probes to search for new physics. One proposed model with Δ(B-L)=2 involves the oscillations of a neutron to an antineutron. In this paper, a new limit on this process is derived for the data acquired from all three operational phases of the Sudbury Neutrino Observatory experiment. The search concentrated on oscillations occurring within the deuteron, and 23 events were observed against a background expectation of 30.5 events. These translated to a lower limit on the nuclear lifetime of 1.48×1031 yr at 90% C.L. when no restriction was placed on the signal likelihood space (unbounded). Alternatively, a lower limit on the nuclear lifetime was found to be 1.18×1031 yr at 90% C.L. when the signal was forced into a positive likelihood space (bounded). Values for the free oscillation time derived from various models are also provided in this article. This is the first search for neutron-Antineutron oscillation with the deuteron as a target.
Published: 2017

13. GEANT4 simulations of cosmic muon background in CEMRC BEGe lung detectors and detection sensitivity optimization of trans-uranic radionuclides

Author: Turko, J., Pillalamarri, I., and Jagam, P.
Published: 2020
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14. A Search for Astrophysical Burst Signals at the Sudbury Neutrino Observatory

Author: Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Boudjemline, K., Boulay, M. G., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Detwiler, J. A., DiMarco, M., Diamond, M. D., Doe, P. J., Doucas, G., Drouin, P. -L., Duncan, F. A., Dunford, M., Earle, E. D., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kraus, C., Krauss, C. B., Krueger, A., Kutter, T., Kyba, C. C. M., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Simpson, J. J., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tesic, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Watson, P. J. S., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Wouters, J. M., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: Astrophysics - Solar and Stellar Astrophysics, Nuclear Experiment
Abstract: The Sudbury Neutrino Observatory (SNO) has confirmed the standard solar model and neutrino oscillations through the observation of neutrinos from the solar core. In this paper we present a search for neutrinos associated with sources other than the solar core, such as gamma-ray bursters and solar flares. We present a new method for looking for temporal coincidences between neutrino events and astrophysical bursts of widely varying intensity. No correlations were found between neutrinos detected in SNO and such astrophysical sources.
Published: 2013
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15. Combined Analysis of all Three Phases of Solar Neutrino Data from the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Boudjemline, K., Boulay, M. G., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Detwiler, J. A., DiMarco, M., Doe, P. J., Doucas, G., Drouin, P. -L., Duncan, F. A., Dunford, M., Earle, E. D., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kraus, C., Krauss, C. B., Kruger, A, Kutter, T., Kyba, C. C. M., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Rosten, R. C., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Simpson, J. J., Skensved, P., Sonley, T. J., Stonehill, L. C., Tešić, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Tseung, H. Wan Chan, Wark, D. L., Watson, P. J. S., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Wouters, J. M., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: Nuclear Experiment, Astrophysics - Solar and Stellar Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: We report results from a combined analysis of solar neutrino data from all phases of the Sudbury Neutrino Observatory. By exploiting particle identification information obtained from the proportional counters installed during the third phase, this analysis improved background rejection in that phase of the experiment. The combined analysis resulted in a total flux of active neutrino flavors from 8B decays in the Sun of (5.25 \pm 0.16(stat.)+0.11-0.13(syst.))\times10^6 cm^{-2}s^{-1}. A two-flavor neutrino oscillation analysis yielded \Deltam^2_{21} = (5.6^{+1.9}_{-1.4})\times10^{-5} eV^2 and tan^2{\theta}_{12}= 0.427^{+0.033}_{-0.029}. A three-flavor neutrino oscillation analysis combining this result with results of all other solar neutrino experiments and the KamLAND experiment yielded \Deltam^2_{21} = (7.41^{+0.21}_{-0.19})\times10^{-5} eV^2, tan^2{\theta}_{12} = 0.446^{+0.030}_{-0.029}, and sin^2{\theta}_{13} = (2.5^{+1.8}_{-1.5})\times10^{-2}. This implied an upper bound of sin^2{\theta}_{13} < 0.053 at the 95% confidence level (C.L.).
Published: 2011
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16. Measurement of the $\nu_e$ and Total $^{8}$B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase-III Data Set

Author: Aharmim, B., Ahmed, S. N., Amsbaugh, J. F., Anaya, J. M., Anthony, A. E., Banar, J., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Boudjemline, K., Boulay, M. G., Bowles, T. J., Browne, M. C., Bullard, T. V., Burritt, T. H., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Currat, C. A., Dai, X., Deng, H., Detwiler, J. A., DiMarco, M., Doe, P. J., Doucas, G., Dragowsky, M. R., Drouin, P. -L., Duba, C. A., Duncan, F. A., Dunford, M., Earle, E. D., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Fowler, M. M., Gagnon, N., Germani, J. V., Goldschmidt, A., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Hamian, A. A., Harper, G. C., Harvey, P. J., Hazama, R., Heeger, K. M., Heintzelman, W. J., Heise, J., Helmer, R. L., Henning, R., Hime, A., Howard, C., Howe, M. A., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Krueger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R., McCauley, N., McDonald, A. B., McGee, S. R., Mifflin, C., Miller, G. G., Miller, M. L., Monreal, B., Monroe, J., Morissette, B., Myers, A. W., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Rollin, E., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Simpson, J. J., Skensved, P., Smith, M. W. E., Sonley, T. J., Steiger, T. D., Stonehill, L. C., Tesic, G., Thornewell, P. M., Tolich, N., Tsui, T., Tunnell, C. D., Van Wechel, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wendland, J., West, N., Wilhelmy, J. B., Wilkerson, J. F., Wilson, J. R., Wouters, J. M., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: Nuclear Experiment, Astrophysics - Solar and Stellar Astrophysics, High Energy Physics - Experiment
Abstract: This paper details the solar neutrino analysis of the 385.17-day Phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of $^3$He proportional counters was installed in the heavy-water target to measure precisely the rate of neutrino-deuteron neutral-current interactions. This technique to determine the total active $^8$B solar neutrino flux was largely independent of the methods employed in previous phases. The total flux of active neutrinos was measured to be $5.54^{+0.33}_{-0.31}(stat.)^{+0.36}_{-0.34}(syst.)\times 10^{6}$ cm$^{-2}$ s$^{-1}$, consistent with previous measurements and standard solar models. A global analysis of solar and reactor neutrino mixing parameters yielded the best-fit values of $\Delta m^2 = 7.59^{+0.19}_{-0.21}\times 10^{-5}{eV}^2$ and $\theta = 34.4^{+1.3}_{-1.2}$ degrees., Comment: 104 pages, 26 figures, 20 tables, submitted to Phys. Rev. C
Published: 2011
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17. The calibration of the Sudbury Neutrino Observatory using uniformly distributed radioactive sources

Author: Boudjemline, K., Cai, B., Cleveland, B. T., Evans, H. C., Ewan, G. T., Farine, J., Ford, R. J., Guillian, E., Hallin, A. L., Hallman, E. D., Howard, C., Jagam, P., Jelley, N. A., Keeter, K. J., Klein, J. R., Kraus, C., Krauss, C. B., Lange, R., Lawson, I. T., Leslie, J. R., Loach, J. C., McDonald, A. B., McGregor, G., Noble, A. J., O'Keeffe, H. M., Peeters, S. J. M., Poon, A. W. P., Reitzner, S. D., Rielage, K., Robertson, R. G. H., Rusu, V. L., Seibert, S. R., Skensved, P., and Thomson, M. J.
Subjects: Nuclear Experiment
Abstract: The production and analysis of distributed sources of 24Na and 222Rn in the Sudbury Neutrino Observatory (SNO) are described. These unique sources provided accurate calibrations of the response to neutrons, produced through photodisintegration of the deuterons in the heavy water target, and to low energy betas and gammas. The application of these sources in determining the neutron detection efficiency and response of the 3He proportional counter array, and the characteristics of background Cherenkov light from trace amounts of natural radioactivity is described., Comment: 24 pages, 13 figures
Published: 2009
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18. Considerations For a Dedicated Geoneutrino Detector For Geosciences

Author: Ila, P., Gosnold, W., Jagam, P., and Lykken, G. I.
Subjects: Physics - Instrumentation and Detectors, Physics - Geophysics
Abstract: A combination of several sources including: radiogenic heating, processes of mantle and core formation and differentiation, delayed radiogenic heating, earthquakes, and tidal friction account for the surface heat flux in the Earth. Radiogenic heating is of much interest in various fields of geosciences. Inferences from recent experiments with reactor antineutrinos and solar neutrinos showed that the age of geoneutrinos is at hand for constraining radiogenic heat. Because of the deep penetrating properties of the neutrinos this type of radiation in the decay of the heat producing elements (HPE) is ideally suited for the investigation of the deep interiors of the Earth compared to conventional radiometric methods for HPE employing alpha-, beta- and gamma rays. This presentation will address the considerations for a dedicated geoneutrino detector to be set up for investigating the interior regions all the way to the center of the Earth., Comment: 18 pages, 8 figures, Poster presentation in AGU 2008 Fall meeting
Published: 2009

19. GEANT4 investigation of 40K and 222Rn interference effects on actinide detection sensitivities of CEMRC BEGe lung detectors

Author: Turko, J., Pillalamarri, I., and Jagam, P.
Published: 2018
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20. A solution for 40K interference from K internal to the human body, in an underground high sensitivity whole body counter at the Waste Isolation Pilot Plant, Carlsbad, NM, USA

Author: Pillalamarri, I. and Jagam, P.
Published: 2017
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21. 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

22. A Search for Neutrinos from the Solar hep Reaction and the Diffuse Supernova Neutrino Background with the Sudbury Neutrino Observatory

Author: Aharmim, B., Ahmed, S.N., Anthony, A.E., Beier, E.W., Bellerive, A., Bergevin, M., Biller, S.D., Boulay, M.G., Chan, Y.D., Chen, M., Chen, X., Cleveland, B.T., Cox, G.A., Currat, C.A., Dai, X., Dalnoki-Veress, F., Deng, H., Detwiler, J., DiMarco, M., Doe, P.J., Doucas, G., Drouin, P.-L., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Fleurot, F., Ford, R.J., Formaggio, J.A., Gagnon, N., Goon, J.T.M., Graham, K., Guillian, E., Hahn, R.L., Hallin, A.L., Hallman, E.D., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hemingway, R.J., Henning, R., Hime, A., Howard, C., Howe, M.A., Huang, M., Jagam, P., Jelley, N.A., Klein, J.R., Kormos, L.L., Kos, M., Krueger, A., Kraus, C., Krauss, C.B., Kutter, T., Kyba, C.C.M., Labranche, H., Lange, R., Law, J.Lawson.I.T., Lesko, K.T., Leslie, J.R., Loach, J.C., Luoma, S., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Marino, A.D., Martin, R., McCauley, N., McDonald, A.B., McGee, S., Mifflin, C., Miknaitis, K.K.S., Miller, M.L., Monreal, B., Nickel, B.G., Noble, A.J., Norman, E.B., Oblath, N.S., Okada, C.E., O'Keeffe, H.M., Orebi Gann, G.D., Oser, S.M., Ott, R., Peeters, S.J.M., Poon, A.W.P., Prior, G., Rielage, K., Robertson, B.C., Robertson, R.G.H., Rollin, E., Schwendener, M.H., and Secrest, J.A.
Abstract: A search has been made for neutrinos from the hep reaction in the Sun and from the diffuse supernova neutrino background (DSNB) using data collected during the first operational phase of the Sudbury Neutrino Observatory, with an exposure of 0.65 kilotonne-years. For the hep neutrino search, two events are observed in the effective electron energy range of 14.3 MeV < Teff < 20 MeV where 3.1 background events are expected. After accounting for neutrino oscillations, an upper limit of 2.3 x 104 cm-2s-1 at the 90 percent confidence level is inferred on the integral total flux of hep neutrinos. For DSNB neutrinos, no events are observed in the effective electron energy range of 21 MeV < Teff < 35 MeV and, consequently, an upper limit on the nu e component of the DSNB fluxin the neutrino energy range of 22.9 MeV < E nu < 36.9 MeV of 70 cm-2-1 is inferred at the 90 percent confidence level. This is an improvement by a factor of 6.5 on the previous best upper limit on the hep neutrino flux and by two orders of magnitude on the previous upper limit on the nu e component of the DSNB flux.
Published: 2006

23. 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

24. A solution for 40K interference from K internal to the human body, in an underground high sensitivity whole body counter at the Waste Isolation Pilot Plant, Carlsbad, NM, USA

Author: I. Pillalamarri and P. Jagam
Subjects: Interdisciplinary application, BOMAB phantom, Gamma-ray spectroscopy, Ge detector, Radiation shielding, Whole-body counter, 40K gamma-ray interference, Medical physics. Medical radiology. Nuclear medicine, R895-920, Nuclear engineering. Atomic power, TK9001-9401
Abstract: The objective of the present work is to find a solution for the interference arising from 1461 keV photons emitted by 40K in natural K internal to the human body in the detection of 241Am and 210Pb activities at the level of 37 mBq (1 pCi). The response of a broad energy Ge (BEGe) reference crystal to 1461 keV photons was simulated using GEANT4 code. Simulations were performed for a point source without and with shielding, as well as for a Bottle Manikin Absorption (BOMAB) phantom in the shielded whole-body counting chamber (WBC). The WBC facility is located underground at the Waste Isolation Pilot Plant, Carlsbad, NM, USA. The simulation results were discussed with regards to the interference in detecting the 241Am and 210 Pb at the level of 37 mBq (1 pCi). The specific conclusion is that the interference counts from 40K activity at the natural levels present in the human body in typical clinical settings were found to be greater than the 210Pb and 241Am signal counts from 37 mBq (1 pCi), when a 38.1 mm diameter, 25.4 mm thick BEGe reference crystal was used. Our solution for minimizing the interference to the desired precision at the specified levels was found by sacrificing the broad energy response of the counting system.
Published: 2017
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25. 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

26. The Sudbury Neutrino Observatory and the Solar Neutrino Problem

Author: Lesko, K.T., Chan, Y.D., Garcia, A., Norman, E.B., Smith, A.R., Stokstad, R.G., Zlimen, I., Evans, H.C., Ewan, G.T., Hillin, A., Lee, H.W., Leslie, J.R., MacArthur, J.D., Mak, H.B., McDonald, A.B., McLatchie, W., Robertson, B.C., Skensved, P., Sur, B., Bonvin, E., Earle, E.D., Hepburn, D., Milton, G.M., Blevis, I., Davidson, W.F., Hargrove, C.K., Mex, H., Shatkay, M., Sinclair, D., Carter, A.L., Hollebone, B., Kessler, D., Jagam, P., Law, J., Ollerhead, R.W., Simpson, J.J., Wang, J.-X., Bigu, J., Hallman, E.D., Haq, R.U., Virtue, C., Gil, S., Waltham, C., Lowry, M.M., Beier, E.W., Frati, W., Newcomer, M., Berg, R. Ban, Bowles, T.J., Doe, P., Fowler, M.M., Hime, A., McGirt, F., Robertson, R.G.H., Spencer, T.C., Vieira, D.J., Wilhelmy, J.B., Wilkerson, J.F., Wouters, J.M., Tanner, N.W., Jelley, N.A., Barton, J.C., Doucas, G., Hooper, E.W., Knox, A.B., Morehead, M.E., Omori, M., Trent, P.T., and Wark, D.L.
Published: 1993

27. The Sudbury Neutrino Observatory

Author: Norman, E B, Chan, Y D, Garcia, A, Lesko, K T, Smith, A R, Stokstad, R G, Zlimen, I, Evans, H C, Ewan, G T, Hallin, A, Lee, H W, Leslie, J R, MacArthur, J D, Mak, H B, McDonald, A B, McLatchie, W, Robertson, B C, Skensved, P, Sur, B, Bonvin, E, Earle, B D, Hepburn, D, Milton, G M, Blevis, I, Davidson, W F, Hargrove, C K, Mes, H, Shatkay, M, Sinclair, D, Carter, A L, Hollebone, B, Kessler, D, Jagam, P, Law, J, Ollerhead, R W, Simpson, J J, Wang, J X, Bigu, J, Hallman, E D, Haq, R U, Virtue, C, Gil, S, Waltham, C, Lowry, M M, Beier, E W, Frati, W, Newcomer, M, Van Berg, R, Bowles, T J, Doe, P, Fowler, M M, Hime, A, McGirt, F, Robertson, R G H, Spencer, T C, Vieira, D J, Wilhemy, J B, Wilkerson, J F, Wouters, J M, Tanner, N W, Jelley, N A, Barton, J C, Doucas, G, Hooper, E W, Knox, A B, Moorhead, M E, Omori, M, Trent, P T, and Wark, D L
Published: 1992

28. A search for astrophysical burst signals at the Sudbury Neutrino Observatory

Author: Aharmim, B., Ahmed, S.N., Anthony, A.E., Barros, N., Beier, E.W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S.D., Boudjemline, K., Boulay, M.G., Cai, B., Chan, Y.D., Chauhan, D., Chen, M., Cleveland, B.T., Cox, G.A., Dai, X., Deng, H., Detwiler, J.A., DiMarco, M., Diamond, M.D., Doe, P.J., Doucas, G., Drouin, P.-L., Duncan, F.A., Dunford, M., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Fleurot, F., Ford, R.J., Formaggio, J.A., Gagnon, N., Goon, J.TM., Graham, K., Guillian, E., Habib, S., Hahn, R.L., Hallin, A.L., Hallman, E.D., Harvey, P.J., Hazama, R., Heintzelman, W.J., Heise, J., Helmer, R.L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N.A., Jerkins, M., Keeter, K.J., Klein, J.R., Kormos, L.L., Kos, M., Kraus, C., Krauss, C.B., Krueger, A., Kutter, T., Kyba, C.C.M., Lange, R., Law, J., Lawson, I.T., Lesko, K.T., Leslie, J.R., Levine, I., Loach, J.C., MacLellan, R., Majerus, S., Mak, H.B., Maneira, J., Martin, R., McCauley, N., McDonald, A.B., McGee, S.R., Miller, M.L., Monreal, B., Monroe, J., Nickel, B.G., Noble, A.J., O’Keeffe, H.M., Oblath, N.S., Ollerhead, R.W., Orebi Gann, G.D., Oser, S.M., Ott, R.A., Peeters, S.J.M., Poon, A.W.P., Prior, G., Reitzner, S.D., Rielage, K., Robertson, B.C., Robertson, R.G.H., Schwendener, M.H., Secrest, J.A., Seibert, S.R., Simard, O., Simpson, J.J., Sinclair, D., Skensved, P., Sonley, T.J., Stonehill, L.C., Tešić, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B.A., Virtue, C.J., Wall, B.L., Waller, D., Wan Chan Tseung, H., Wark, D.L., Watson, P.J.S., Wendland, J., West, N., Wilkerson, J.F., Wilson, J.R., Wouters, J.M., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Published: 2014
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29. The calibration of the Sudbury Neutrino Observatory using uniformly distributed radioactive sources

Author: Boudjemline, K., Cai, B., Cleveland, B.T., Evans, H.C., Ewan, G.T., Farine, J., Ford, R.J., Guillian, E., Hallin, A.L., Hallman, E.D., Howard, C., Jagam, P., Jelley, N.A., Keeter, K.J., Klein, J.R., Kraus, C., Krauss, C.B., Lange, R., Lawson, I.T., Loach, J.C., McDonald, A.B., McGregor, G., Noble, A.J., O’Keeffe, H.M., Peeters, S.J.M., Poon, A.W.P., Reitzner, S.D., Rielage, K., Robertson, R.G.H., Rusu, V.L., Seibert, S.R., Skensved, P., and Thomson, M.J.
Published: 2010
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30. Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P. -L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. TM., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Kruger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Land, B. J., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O'Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Gann, G. D. Orebi, Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Singh, J., Skensved, P., Smiley, M., Sonley, T. J., Stonehill, L. C., Tesic, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Tseung, H. Wan Chan, Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: Heavy water, Physics, Sudbury Neutrino Observatory, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, Visible energy, High Energy Physics - Experiment, Nuclear physics, chemistry.chemical_compound, High Energy Physics - Experiment (hep-ex), chemistry, 0103 physical sciences, High Energy Physics::Experiment, ddc:530, Neutron, Production (computer science), Atmospheric neutrino, Neutrino, 010306 general physics, Nuclear Experiment, QC
Abstract: Author(s): Aharmim, B; Ahmed, SN; Anthony, AE; Barros, N; Beier, EW; Bellerive, A; Beltran, B; Bergevin, M; Biller, SD; Bonventre, R; Boudjemline, K; Boulay, MG; Cai, B; Callaghan, EJ; Caravaca, J; Chan, YD; Chauhan, D; Chen, M; Cleveland, BT; Cox, GA; Dai, X; Deng, H; Descamps, FB; Detwiler, JA; Doe, PJ; Doucas, G; Drouin, P-L; Dunford, M; Elliott, SR; Evans, HC; Ewan, GT; Farine, J; Fergani, H; Fleurot, F; Ford, RJ; Formaggio, JA; Gagnon, N; Gilje, K; Goon, JTM; Graham, K; Guillian, E; Habib, S; Hahn, RL; Hallin, AL; Hallman, ED; Harvey, PJ; Hazama, R; Heintzelman, WJ; Heise, J; Helmer, RL; Hime, A; Howard, C; Huang, M; Jagam, P; Jamieson, B; Jelley, NA; Jerkins, M; Keeter, KJ; Klein, JR; Kormos, LL; Kos, M; Kruger, A; Kraus, C; Krauss, CB; Kutter, T; Kyba, CCM; Land, BJ; Lange, R; Law, J; Lawson, IT; Lesko, KT; Leslie, JR; Levine, I; Loach, JC; MacLellan, R; Majerus, S; Mak, HB; Maneira, J; Martin, RD; Mastbaum, A; McCauley, N; McDonald, AB; McGee, SR; Miller, ML; Monreal, B | Abstract: Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using GENIE and a minimally modified version of GEANT4. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasi-elastic interaction candidates, also as a function of the neutrino energy. This study is also performed classifying the complete sample into two pairs of event categories: charged current quasi-elastic and non charged current quasi-elastic, and $\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below $2\sigma$ for some intermediate energies.
Published: 2020
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31. Cosmogenic neutron production at the Sudbury Neutrino Observatory

Author: SNO Collaboration, Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Bonventre, R., Boudjemline, K., Boulay, M. G., Cai, B., Callaghan, E. J., Caravaca, J., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Curley, R., Dai, X., Deng, H., Descamps, F. B., Detwiler, J. A., Doe, P. J., Doucas, G., Drouin, P.-L., Dunford, M., Elliott, S. R., Evans, H. C., Ewan, G. T., Farine, J., Fergani, H., Fleurot, F., Ford, R. J., Formaggio, J. A., Gagnon, N., Gilje, K., Goon, J. T. M., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., Heise, J., Helmer, R. L., Hime, A., Howard, C., Huang, M., Jagam, P., Jamieson, B., Jelley, N. A., Jerkins, M., Kéfélian, C., Keeter, K. J., Klein, J. R., Kormos, L. L., Kos, M., Krüger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C. M., Land, B. J., Lange, R., Law, J., Lawson, I. T., Lesko, K. T., Leslie, J. R., Levine, I., Loach, J. C., MacLellan, R., Majerus, S., Mak, H. B., Maneira, J., Martin, R. D., Mastbaum, A., McCauley, N., McDonald, A. B., McGee, S. R., Miller, M. L., Monreal, B., Monroe, J., Nickel, B. G., Noble, A. J., O’Keeffe, H. M., Oblath, N. S., Okada, C. E., Ollerhead, R. W., Orebi Gann, G. D., Oser, S. M., Ott, R. A., Peeters, S. J. M., Poon, A. W. P., Prior, G., Reitzner, S. D., Rielage, K., Robertson, B. C., Robertson, R. G. H., Schwendener, M. H., Secrest, J. A., Seibert, S. R., Simard, O., Sinclair, D., Skensved, P., Sonley, T. J., Stonehill, L. C., Tešić, G., Tolich, N., Tsui, T., Van Berg, R., VanDevender, B. A., Virtue, C. J., Wall, B. L., Waller, D., Wan Chan Tseung, H., Wark, D. L., Wendland, J., West, N., Wilkerson, J. F., Wilson, J. R., Winchester, T., Wright, A., Yeh, M., Zhang, F., and Zuber, K.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Extrapolation, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), chemistry.chemical_compound, Neutron yield, Observatory, 0103 physical sciences, ddc:530, Neutron, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, QC, Heavy water, Physics, Sudbury Neutrino Observatory, Muon, 010308 nuclear & particles physics, Observable, chemistry, High Energy Physics::Experiment
Abstract: Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even in detectors located deep underground. Models for the production of these neutrons have been tested against previous experimental data, but the extrapolation to deeper sites is not well understood. Here we report results from an analysis of cosmogenically produced neutrons at the Sudbury Neutrino Observatory. A specific set of observables are presented, which can be used to benchmark the validity of geant4 physics models. In addition, the cosmogenic neutron yield, in units of 10−4 cm2/(g·μ), is measured to be 7.28±0.09(stat)−1.12+1.59(syst) in pure heavy water and 7.30±0.07(stat)−1.02+1.40(syst) in NaCl-loaded heavy water. These results provide unique insights into this potential background source for experiments at SNOLAB.
Published: 2019
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32. Thorium and uranium determinations in acrylic by neutron activation analysis

Author: Jagam, P., Wang, J. -X., and Simpson, J. J.
Published: 1993
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33. Measurement of [formula omitted] dissolved in water at the Sudbury Neutrino Observatory

Author: Blevis, I, Boger, J, Bonvin, E, Cleveland, B.T, Dai, X, Dalnoki-Veress, F, Doucas, G, Farine, J, Fergani, H, Grant, D, Hahn, R.L, Hamer, A.S, Hargrove, C.K, Heron, H, Jagam, P, Jelley, N.A, Jillings, C, Knox, A.B, Lee, H.W, Levine, I, Liu, M, Majerus, S, McDonald, A, McFarlane, K, Mifflin, C, Noble, A.J, Noël, S, Novikov, V.M, Rowley, J.K, Shatkay, M, Simpson, J.J, Sinclair, D, Sur, B, Wang, J.-X, Yeh, M, and Zhu, X
Published: 2004
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34. Intensity of the 1001 keV γ-ray in the decay of234mPa

Author: Jagam, P. and Simpson, J. J.
Published: 1992
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35. 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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36. Measurement of radium concentration in water with Mn-coated beads at the Sudbury Neutrino Observatory

Author: Andersen, T.C., Blevis, I., Boger, J., Bonvin, E., Chen, M., Cleveland, B.T., Dai, X., Dalnoki-Veress, F., Doucas, G., Farine, J., Fergani, H., Ferraris, A.P., Fowler, M.M., Hahn, R.L., Hallman, E.D., Hargrove, C.K., Jagam, P., Jelley, N.A., Knox, A.B., Lee, H.W., Levine, I., Majerus, S., McFarlane, K., Mifflin, C., Miller, G.G., Noble, A.J., Palmer, P., Rowley, J.K., Shatkay, M., Simpson, J.J., Sinclair, D., Wang, J.-X., Wilhelmy, J.B., and Yeh, M.
Published: 2003
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37. A radium assay technique using hydrous titanium oxide adsorbent for the Sudbury Neutrino Observatory

Author: Andersen, T.C, Black, R.A, Blevis, I, Boger, J, Bonvin, E, Chen, M, Cleveland, B.T, Dai, X, Dalnoki-Veress, F, Doucas, G, Farine, J, Fergani, H, Fowler, M.M, Hahn, R.L, Hallman, E.D, Hargrove, C.K, Heron, H, Hooper, E, Howard, K.H, Jagam, P, Jelley, N.A, Knox, A.B, Lee, H.W, Levine, I, Locke, W, Majerus, S, McFarlane, K, McGregor, G, Miller, G.G, Moorhead, M, Noble, A.J, Omori, M, Rowley, J.K, Shatkay, M, Shewchuk, C, Simpson, J.J, Sinclair, D, Tanner, N.W, Taplin, R.K, Trent, P.T, Wang, J.-X, Wilhelmy, J.B, and Yeh, M
Published: 2003
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38. Tests of Lorentz invariance at the Sudbury Neutrino Observatory

Author: Aharmim, B. (B.), Ahmed, S.N. (S. N.), Anthony, A.E. (A. E.), Barros, N. (N.), Beier, E.W. (E. W.), Bellerive, A. (Alain), Beltran, B. (B.), Bergevin, M. (M.), Biller, S.D. (S. D.), Blucher, E. (E.), Bonventre, R. (R.), Boudjemline, K. (K.), Boulay, M.G. (Mark Guy), Cai, B. (B.), Callaghan, E.J. (E. J.), Caravaca, J. (J.), Chan, Y.D. (Y. D.), Chauhan, D. (D.), Chen, M. (M.), Cleveland, B.T. (B. T.), Cox, G.A. (G. A.), Dai, X. (X.), Deng, H. (H.), Descamps, F.B. (F. B.), Detwiler, J.A. (J. A.), Doe, P.J. (P. J.), Doucas, G. (G.), Drouin, P.-L. (P. L.), Dunford, M. (M.), Elliott, S.R. (S. R.), Evans, H.C. (H. C.), Ewan, G.T. (G. T.), Farine, J. (J.), Fergani, H. (H.), Fleurot, F. (F.), Ford, R.J. (R. J.), Formaggio, J.A. (J. A.), Gagnon, N. (N.), Gilje, K. (K.), Goon, J.T. (J. Tm.), Graham, K. (K.), Guillian, E. (E.), Habib, S. (S.), Hahn, R.L. (R. L.), Hallin, A.L. (A. L.), Hallman, E.D. (E. D.), Harvey, P.J. (P. J.), Hazama, R. (R.), Heintzelman, W.J. (W. J.), Heise, J. (J.), Helmer, R.L. (R. L.), Hime, A. (A.), Howard, C. (C.), Huang, M. (M.), Jagam, P. (P.), Jamieson, B. (B.), Jelley, N.A. (N. A.), Jerkins, M. (M.), Kéfélian, C. (C.), Keeter, K.J. (K. J.), Klein, J.R. (J. R.), Kormos, L.L. (L. L.), Kos, M. (M.), Krüger, A. (A.), Kraus, C. (C.), Krauss, C.B. (C. B.), Kutter, T. (T.), Kyba, C.C.M. (C. C.M.), Labe, K. (K.), Land, B.J. (B. J.), Lange, R. (R.), Latorre, A. (A.), Law, J. (J.), Lawson, I.T. (I. T.), Lesko, K.T. (K. T.), Leslie, J.R. (J. R.), Levine, I. (I.), Loach, J.C. (J. C.), Maclellan, R. (R.), Majerus, S. (S.), Mak, H.B. (H. B.), Maneira, J. (J.), Martin, R.D. (R. D.), Mastbaum, A. (A.), McCauley, N. (N.), McDonald, A.B. (A. B.), McGee, S.R. (S. R.), Miller, M.L. (M. L.), Monreal, B. (B.), Monroe, J. (J.), Nickel, B.G. (B. G.), Noble, A.J. (A. J.), O'Keeffe, H.M. (H. M.), Oblath, N.S. (N. S.), Okada, C.E. (C. E.), Ollerhead, R.W. (R. W.), Orebi Gann, G.D. (G. D.), Oser, S.M. (S. M.), Ott, R.A. (R. A.), Peeters, S.J.M. (S. J.M.), Poon, A.W.P. (A. W.P.), Prior, G. (G.), Reitzner, S.D. (S. D.), Rielage, K. (K.), Robertson, B.C. (B. C.), Robertson, R.G.H. (R. G.H.), Schwendener, M.H. (M. H.), Secrest, J.A. (J. A.), Seibert, S.R. (S. R.), Simard, O. (O.), Sinclair, D. (D.), Skensved, P. (P.), Sonley, T.J. (T. J.), Stonehill, L.C. (L. C.), Tešić, G. (G.), Tolich, N. (N.), Tsui, T. (T.), Van Berg, R. (R.), Vandevender, B.A. (B. A.), Virtue, C.J. (C. J.), Wall, B.L. (B. L.), Waller, D. (D.), Wan Chan Tseung, H. (H.), Wark, D.L. (D. L.), Wendland, J. (J.), West, N. (N.), Wilkerson, J.F. (J. F.), Winchester, T. (T.), Wilson, J.R. (J. R.), Wright, A. (A.), Yeh, M. (M.), Zhang, F. (F.), Zuber, K. (K.), Aharmim, B. (B.), Ahmed, S.N. (S. N.), Anthony, A.E. (A. E.), Barros, N. (N.), Beier, E.W. (E. W.), Bellerive, A. (Alain), Beltran, B. (B.), Bergevin, M. (M.), Biller, S.D. (S. D.), Blucher, E. (E.), Bonventre, R. (R.), Boudjemline, K. (K.), Boulay, M.G. (Mark Guy), Cai, B. (B.), Callaghan, E.J. (E. J.), Caravaca, J. (J.), Chan, Y.D. (Y. D.), Chauhan, D. (D.), Chen, M. (M.), Cleveland, B.T. (B. T.), Cox, G.A. (G. A.), Dai, X. (X.), Deng, H. (H.), Descamps, F.B. (F. B.), Detwiler, J.A. (J. A.), Doe, P.J. (P. J.), Doucas, G. (G.), Drouin, P.-L. (P. L.), Dunford, M. (M.), Elliott, S.R. (S. R.), Evans, H.C. (H. C.), Ewan, G.T. (G. T.), Farine, J. (J.), Fergani, H. (H.), Fleurot, F. (F.), Ford, R.J. (R. J.), Formaggio, J.A. (J. A.), Gagnon, N. (N.), Gilje, K. (K.), Goon, J.T. (J. Tm.), Graham, K. (K.), Guillian, E. (E.), Habib, S. (S.), Hahn, R.L. (R. L.), Hallin, A.L. (A. L.), Hallman, E.D. (E. D.), Harvey, P.J. (P. J.), Hazama, R. (R.), Heintzelman, W.J. (W. J.), Heise, J. (J.), Helmer, R.L. (R. L.), Hime, A. (A.), Howard, C. (C.), Huang, M. (M.), Jagam, P. (P.), Jamieson, B. (B.), Jelley, N.A. (N. A.), Jerkins, M. (M.), Kéfélian, C. (C.), Keeter, K.J. (K. J.), Klein, J.R. (J. R.), Kormos, L.L. (L. L.), Kos, M. (M.), Krüger, A. (A.), Kraus, C. (C.), Krauss, C.B. (C. B.), Kutter, T. (T.), Kyba, C.C.M. (C. C.M.), Labe, K. (K.), Land, B.J. (B. J.), Lange, R. (R.), Latorre, A. (A.), Law, J. (J.), Lawson, I.T. (I. T.), Lesko, K.T. (K. T.), Leslie, J.R. (J. R.), Levine, I. (I.), Loach, J.C. (J. C.), Maclellan, R. (R.), Majerus, S. (S.), Mak, H.B. (H. B.), Maneira, J. (J.), Martin, R.D. (R. D.), Mastbaum, A. (A.), McCauley, N. (N.), McDonald, A.B. (A. B.), McGee, S.R. (S. R.), Miller, M.L. (M. L.), Monreal, B. (B.), Monroe, J. (J.), Nickel, B.G. (B. G.), Noble, A.J. (A. J.), O'Keeffe, H.M. (H. M.), Oblath, N.S. (N. S.), Okada, C.E. (C. E.), Ollerhead, R.W. (R. W.), Orebi Gann, G.D. (G. D.), Oser, S.M. (S. M.), Ott, R.A. (R. A.), Peeters, S.J.M. (S. J.M.), Poon, A.W.P. (A. W.P.), Prior, G. (G.), Reitzner, S.D. (S. D.), Rielage, K. (K.), Robertson, B.C. (B. C.), Robertson, R.G.H. (R. G.H.), Schwendener, M.H. (M. H.), Secrest, J.A. (J. A.), Seibert, S.R. (S. R.), Simard, O. (O.), Sinclair, D. (D.), Skensved, P. (P.), Sonley, T.J. (T. J.), Stonehill, L.C. (L. C.), Tešić, G. (G.), Tolich, N. (N.), Tsui, T. (T.), Van Berg, R. (R.), Vandevender, B.A. (B. A.), Virtue, C.J. (C. J.), Wall, B.L. (B. L.), Waller, D. (D.), Wan Chan Tseung, H. (H.), Wark, D.L. (D. L.), Wendland, J. (J.), West, N. (N.), Wilkerson, J.F. (J. F.), Winchester, T. (T.), Wilson, J.R. (J. R.), Wright, A. (A.), Yeh, M. (M.), Zhang, F. (F.), and Zuber, K. (K.)
Abstract: Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well founded. Data from all phases of the Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, are analyzed for possible violations of Lorentz symmetry in the neutrino sector. Such violations would appear as one of eight possible signal types in the detector: six seasonal variations in the solar electron neutrino survival probability differing in energy and time dependence and two shape changes to the oscillated solar neutrino energy spectrum. No evidence for such signals is observed, and limits on the size of such effects are established in the framework of the standard model extension, including 38 limits on previously unconstrained operators and improved limits on 16 additional operators. This makes limits on all minimal, Dirac-type Lorentz violating operators in the neutrino sector available for the first time.
Published: 2018
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39. 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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40. 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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41. The Sudbury D2O Neutrino Detector

Author: Earle, E. D., Ewan, G. T., Lee, H. W., Mak, H.-B., Robertson, B. C., Allen, R. C., Chen, H. H., Doe, P. J., Sinclair, D., Davidson, W. F., Hargrove, C., Storey, R. S., Aardsma, G., Jagam, P., Simpson, J. J., Hallman, E. D., McDonald, A. B., Carter, A. L., Kessler, D., and Klapdor, Hans Volker, editor
Published: 1986
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42. Measurement of Rn-222 dissolved in water at the Sudbury neutrino observatory

Author: Blevis, I, Boger, J, Bonvin, E, Cleveland, B, Dai, X, Dalnoki-Veress, F, Doucas, G, Farine, J, Fergani, H, Grant, D, Hahn, R, Hamer, A, Hargrove, C, Heron, H, Jagam, P, Jelley, N, Jillings, C, Knox, AB, Lee, H, Levine, I, Liu, M, Majerus, S, McDonald, A, McFarlane, K, and Mifflin, C
Abstract: The technique used at the Sudbury Neutrino Observatory (SNO) to measure the concentration of 222Rn in water is described. Water from the SNO detector is passed through a vacuum degasser (in the light water system) or a membrane contact degasser (in the heavy water system) where dissolved gases, including radon, are liberated. The degasser is connected to a vacuum system which collects the radon on a cold trap and removes most other gases, such as water vapor and N2. After roughly 0.5 tonnes of H2O or 6 tonnes of D2O have been sampled, the accumulated radon is transferred to a Lucas cell. The cell is mounted on a photomultiplier tube which detects the α-particles from the decay of 222Rn and its progeny. The overall degassing and concentration efficiency is about 38% and the single-α counting efficiency is approximately 75%. The sensitivity of the radon assay system for D2O is equivalent to ∼ 3 × 10-15 g U/g water. The radon concentration in both the H 2O and D2O is sufficiently low that the rate of background events from U-chain elements is a small fraction of the interaction rate of solar neutrinos by the neutral current reaction. © 2003 Elsevier B.V. All rights reserved.
Published: 2016

43. Recent Results from SNO

Author: Sinclair, D, Kutter, T, Nally, CW, Oser, SM, Waltham, CE, Boger, J, Hahn, RL, Lange, R, Yeh, M, Bellerive, A, Dai, X, Dalnoki-Veress, F, Dosanjh, RS, Grant, DR, Hargrove, CK, Hemingway, RJ, Levine, I, Mifflin, C, Rollin, E, Simard, O, Starinsky, N, Tesic, G, Waller, D, Jagam, P, Labranche, H, Law, J, Lawson, IT, Nickel, BG, Ollerhead, RW, Simpson, JJ, Farine, J, Fleurot, F, Hallman, ED, Luoma, S, Schwendener, MH, Tafirout, R, Virtue, CJ, Chan, YD, Chen, X, Heeger, KM, Lesko, KT, Marino, AD, Norman, EB, Okada, CE, Poon, AWP, Rosendahl, SSE, Stokstad, RG, Boulay, MG, Bowles, TJ, Brice, SJ, Dragowsky, MR, Elliott, SR, Fowler, MM, Hamer, AS, Heise, J, Hime, A, Miller, GG, Van de Water, RG, Wilhelmy, JB, Wouters, JM, Biller, SD, Bowler, MG, Cleveland, BT, Doucas, G, Dunmore, JA, Fergani, H, Frame, K, Jelley, NA, Majerus, S, McGregor, G, Peeters, SJM, Sims, CJ, Thorman, M, Tseung, HWC, West, N, Wilson, JR, Zuber, K, Beier, EW, Dunford, M, Heintzelman, WJ, Kyba, CCM, McCauley, N, Rusu, VL, Van Berg, R, Ahmed, SN, Chen, M, Duncan, FA, Earle, ED, Fulsom, BG, Evans, HC, Ewan, GT, Graham, K, Hallin, AL, Handler, WB, Harvey, PJ, Kos, MS, Krumins, AV, Leslie, JR, and MacLellan, R
Subjects: Heavy water, chemistry.chemical_classification, Nuclear and High Energy Physics, chemistry.chemical_compound, Materials science, chemistry, Seesaw molecular geometry, Chemical engineering, Phase (matter), Salt (chemistry), Nanotechnology, Atomic and Molecular Physics, and Optics
Abstract: The SNO project has now completed two of its three major phases of operation. The no-oscillation hypothesis has been ruled out at 5σ in the pure heavy water phase and 8σ in the salt phase. Discussion in terms of the SeeSaw model is presented. © 2004 Published by Elsevier B.V.
Published: 2004
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44. Proposal to build a neutrino observatory in Sudbury, Canada

Author: Sinclair, D., Carter, A. L., Kessler, D., Earle, E. D., Jagam, P., Simpson, J. J., Allen, R. C., Chen, H. H., Doe, P. J., Hallman, E. D., Davidson, W. F., Storey, R. S., McDonald, A. B., Ewan, G. T., Mak, H. -B., and Robertson, B. C.
Published: 1986
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45. Reactor-detector calibration for routine instrumental neutron activation analysis of geological materials

Author: Ila, P., Jagam, P., and Muecke, G. K.
Published: 1980
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46. Neutron-activation analysis of thorium in acrylic samples

Author: Aardsma, G. E., Jagam, P., and Simpson, J. J.
Published: 1987
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47. Multielement analysis of food spices by instrumental neutron activation analysis

Author: Ila, P. and Jagam, P.
Published: 1980
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48. Multielement analysis of uraniferous rocks by INAA: Special reference to interferences due to uranium and fission of uranium

Author: Ila, P., Jagam, P., and Muecke, G. K.
Published: 1983
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49. Determination of the nu(e) and total B-8 solar neutrino fluxes using the Sudbury Neutrino Observatory Phase I data set

Author: Aharmim, B, Ahmad, QR, Ahmed, SN, Allen, RC, Andersen, TC, Anglin, JD, Buehler, G, Barton, JC, Beier, EW, Bercovitch, M, Bergevin, M, Bigu, J, Biller, SD, 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, J, Chan, YD, Chen, HH, Chen, M, Chen, X, Cleveland, BT, Cowan, JHM, Cowen, DF, Cox, GA, Currat, CA, Dai, X, Dalnoki-Veress, F, Davidson, WF, Deng, H, DiMarco, M, Doe, PJ, Doucas, G, Dragowsky, MR, Duba, CA, Duncan, FA, Dunford, M, Dunmore, JA, Earle, ED, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Ferraris, AP, Fleurot, F, Ford, RJ, Formaggio, JA, Fowler, MM, Frame, K, Frank, ED, Frati, W, Gagnon, N, Germani, JV, Gil, S, Goldschmidt, A, Goon, JTM, Graham, K, Grant, DR, Guillian, E, Hahn, RL, Hallin, AL, Hallman, ED, Hamer, AS, Hamian, AA, Handler, WB, Haq, RU, Hargrove, CK, Harvey, PJ, Hazama, R, Heeger, KM, Heintzelman, WJ, Heise, J, Helmer, RL, Henning, R, Hepburn, JD, Heron, H, Hewett, J, Hime, A, Howard, C, Howe, MA, Huang, M, Hykaway, JG, Isaac, MCP, Jagam, P, Jamieson, B, Jelley, NA, Jillings, C, Jonkmans, G, Kazkaz, K, Keener, PT, Kirch, K, Klein, JR, Knox, AB, Komar, RJ, Kormos, LL, Kos, M, Kouzes, R, Krueger, A, Kraus, C, Krauss, CB, Kutter, T, Kyba, CCM, Labranche, H, Lange, R, Law, J, Lawson, IT, Lay, M, Lee, HW, Lesko, KT, Leslie, JR, Levine, I, Loach, JC, Locke, W, Luoma, S, Lyon, J, MacLellan, R, Majerus, S, Mak, HB, Maneira, J, Marino, AD, Martin, R, McCauley, N, McDonald, AB, McDonald, DS, McFarlane, K, McGee, S, McGregor, G, Drees, RM, Mes, H, Mifflin, C, Miknaitis, KKS, Miller, ML, Milton, G, Moffat, BA, Monreal, B, Moorhead, M, Morrissette, B, Nally, CW, Neubauer, MS, Newcomer, FM, Ng, HS, Nickel, BG, Noble, AJ, Norman, EB, Novikov, VM, Oblath, NS, Okada, CE, O'Keeffe, HM, Ollerhead, RW, Omori, M, Orrell, JL, Oser, SM, Ott, R, Peeters, SJM, Poon, AWP, Prior, G, Reitzner, SD, Rielage, K, Roberge, A, Robertson, BC, Robertson, RGH, Rosendahl, SSE, Rowley, JK, Rusu, VL, Saettler, E, Schulke, A, Schwendener, MH, Secrest, JA, Seifert, H, Shatkay, M, Simpson, JJ, Sims, CJ, Sinclair, D, Skensved, P, Smith, AR, Smith, MWE, Starinsky, N, Steiger, TD, Stokstad, RG, Stonehill, LC, Storey, RS, Sur, B, Tafirout, R, Tagg, N, Takeuchi, Y, Tanner, NW, Taplin, RK, Thorman, M, Thornewell, PM, Tolich, N, Trent, PT, Tserkovnyak, YI, Tsui, T, Tunnell, CD, Van Berg, R, De Water, RGV, Virtue, CJ, Walker, TJ, Wall, BL, Waltham, CE, Tseung, HWC, Wang, J-X, Wark, DL, Wendland, J, West, N, Wilhelmy, JB, Wilkerson, JF, Wilson, JR, Wittich, P, Wouters, JM, Wright, A, Yeh, M, Zuber, K, and Collaboration, SNO
Published: 2007

50. Determination of the νe and total B8 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, John, Bühler, 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., 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., 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., 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., Krüger, A., Kraus, C., Krauss, C. B., Kutter, T., Kyba, C. C., 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., Drees, R. Meijer, Mes, H., Mifflin, C., Miknaitis, K. K., 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., Poon, A. W., Prior, G., Reitzner, S. D., Rielage, K., Roberge, A., Robertson, B. C., Robertson, R. G., Rosendahl, S. S., Rowley, J. K., Rusu, V. L., Saettler, E., Schülke, 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., 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., Water, R. G., Virtue, C. J., Walker, T. J., Wall, B. L., Waltham, C. E., Tseung, H. Wan Chan, 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: 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 kiloton-year exposure of 2H2O (in the following denoted as D2O) to the solar B8 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 B8 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.)-1.2+1.3%(syst.), when the asymmetry in the total flux is constrained to be zero. © 2007 The American Physical Society.
Published: 2007
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