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Professor Helen O'Keeffe FHEA

Professor of Particle Physics

  1. Journal article
  2. Published

    Low-multiplicity burst search at the Sudbury Neutrino Observatory

    SNO Collaboration, 20/02/2011, In: The Astrophysical Journal. 728, 2, 7 p., 83.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  3. Published

    The calibration of the Sudbury Neutrino Observatory using uniformly distributed radioactive sources

    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. V., Jagam, P., Jelley, N. A., Keeter, K. J., Klein, J. R., Kraus, C., Krauss, C. B., Lange, R., Lawson, I. T., Loach, J. C., & 13 othersMcDonald, A. B., Mcgregor, G., Noble, A. J., O'Keeffe, H., 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. & Thomson, M. J., 1/08/2010, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 620, 2-3, p. 171-181 11 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  4. Published

    Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

    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., Burritt, T. H., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., Deng, H., & 31 othersDetwiler, J., DiMarco, M., Doe, P. J., Doucas, G., 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., Gagnon, N., Goon, J. T., Graham, K., Guillian, E., Habib, S., Hahn, R. L., Hallin, A. L., Hallman, E. D., Harvey, P. J., Hazama, R., Heintzelman, W. J., O'Keeffe, H., SNO Collaboration & Kormos, L., 05/2010, In: Physical Review C. 81, 5, p. - 49 p., 055504.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  5. Published

    Searches for high-frequency variations in the 8B solar neutrino flux at the Sudbury Neutrino Observatory

    Kormos, L. & O'Keeffe, H., 02/2010, In: The Astrophysical Journal. 710, 1, p. 540-548 9 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  6. Published

    Measurement of the cosmic ray and neutrino-induced muon flux at the Sudbury neutrino observatory

    SNO Collaboration, 10/07/2009, In: Physical Review D. 80, 1, 15 p., 012001.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. Published

    High sensitivity measurement of 224Ra and 226Ra in water with an improved hydrous titanium oxide technique at the Sudbury Neutrino Observatory

    Aharmim, B., Cleveland, B. T., Dai, X., Doucas, G., Farine, J., Fergani, H., Ford, R., Hahn, R. L., Hallman, E. D., Jelley, N. A., Lange, R., Majerus, S., Mifflin, C., Noble, A. J., O'Keeffe, H., Rodriguez-jimenez, R., Sinclair, D. & Yeh, M., 1/06/2009, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 604, 3, p. 531-535 5 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  8. Published

    Independent measurement of the total active B8 solar neutrino flux using an array of He3 proportional counters at the Sudbury Neutrino Observatory

    Aharmim, B., Kormos, L. & SNO Expt, 12/09/2008, In: Physical review letters. 101, 11, 5 p., 111301.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  9. Published

    An Array of low-background 3He proportional counters for the Sudbury Neutrino Observatory

    SNO Collaboration, 11/09/2007, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 579, 3, p. 1054-1080 27 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. Published

    Determination of the νe and total B8 solar neutrino fluxes using the Sudbury Neutrino Observatory Phase I data set

    SNO Collaboration, 27/04/2007, In: Physical Review C. 75, 4, 69 p., 045502.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  11. Published

    Search for periodicities in the B8 solar neutrino flux measured by the Sudbury Neutrino Observatory

    SNO Collaboration, 30/09/2005, In: Physical Review D. 72, 5, 8 p., 052010.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  12. Letter
  13. Published

    T2K measurements of muon neutrino and antineutrino disappearance using $3.13\times 10^{21}$ protons on target

    T2K Collaboration, Dealtry, T., Doyle, T. A., Finch, A. J., Kormos, L. L., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 1/01/2021, In: Physical Review D. 103, 1, 9 p., L011101.

    Research output: Contribution to Journal/MagazineLetterpeer-review

  14. Working paper
  15. Published
  16. Other
  17. E-pub ahead of print

    Measurements of neutrino oscillation parameters from the T2K experiment using $3.6\times10^{21}$ protons on target

    T2K Collaboration, 6/03/2023, (E-pub ahead of print).

    Research output: Working paperOther

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