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Professor Helen O'Keeffe FHEA

Professor of Particle Physics

  1. Journal article
  2. Published

    Event-by-Event Direction Reconstruction of Solar Neutrinos in a High Light-Yield Liquid Scintillator

    SNO+ Collaboration, Kormos, L. L. & O'Keeffe, H. M., 3/04/2024, In: Physical Review D. 109, 7, 072002.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  3. Published

    First measurement of muon neutrino charged-current interactions on hydrocarbon without pions in the final state using multiple detectors with correlated energy spectra at T2K

    The T2K Collaboration, 18/12/2023, In: Physical Review D. 108, 11, 32 p., 112009.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  4. Published

    Measurements of the $nu_mu$ and $nu_mu$-induced coherent charged pion production cross sections on $^12C$ by the T2K experiment

    T2K Collaboration, 20/11/2023, In: Physical Review D. 108, 9, 092009.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  5. Published

    Updated T2K measurements of muon neutrino and antineutrino disappearance using 3.6 $\times$ 10$^{21}$ protons on target

    T2K Collaboration, 12/10/2023, In: Physical Review D. 108, 7, 072011.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  6. Published

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

    The T2K Collaboration, 5/09/2023, In: European Physical Journal C. 83, 782.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. Published

    Evidence of Antineutrinos from Distant Reactors Using Pure Water at SNO+

    (The SNO+ Collaboration), 1/03/2023, In: Physical review letters. 130, 9, 8 p., 091801.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  8. Published

    Scintillator ageing of the T2K near detectors from 2010 to 2021

    The T2K Collaboration, 17/10/2022, In: Journal of Instrumentation. 17, 10, 35 p., P10028.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  9. Published

    Improved search for invisible modes of nucleon decay in water with the SNO+ detector

    SNO+ Collaboration, Kormos, L. L. & O'Keeffe, H. M., 27/06/2022, In: Physical Review D. 105, 11, 7 p., 112012.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. Published

    Optical calibration of the SNO+ detector in the water phase with deployed sources

    SNO+ Collaboration, Kormos, L. L. & O'Keeffe, H. M., 19/10/2021, In: Journal of Instrumentation. 16, 10, 29 p., P10021.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  11. Published

    The SNO+ Experiment

    SNO+ Collaboration, Kormos, L. L., O'Keeffe, H. M. & Parnell, M. J., 25/08/2021, In: Journal of Instrumentation. 16, 63 p., P08059.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  12. Published

    Supernova Model Discrimination with Hyper-Kamiokande

    Hyper-Kamiokande Collaboration, Dealtry, T., Doyle, T. A., Finch, A., Kormos, L. L., James, M. L., Lawe, M. & O'Keeffe, H. M., 20/07/2021, In: The Astrophysical Journal. 916, 1, 17 p., 15.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  13. Published

    First T2K measurement of transverse kinematic imbalance in the muon-neutrino charged-current single-$π^+$ production channel containing at least one proton

    T2K Collaboration, Dealtry, T., Doyle, T. A., Finch, A. J., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 21/06/2021, In: Physical Review D. 103, 11, 27 p., 112009.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  14. Published

    Improved constraints on neutrino mixing from the T2K experiment with $\mathbf{3.13\times10^{21}}$ protons on target

    T2K Collaboration, Dealtry, T., Doyle, T. A., Finch, A. J., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 1/06/2021, In: Physical Review D. 103, 11, 59 p., 112008.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  15. Published

    Improved constraints on neutrino mixing from the T2K experiment with 3.13×1021 protons on target

    T2K Collaboration, 1/06/2021, In: Physical Review D. 103, 11, 59 p., 112008.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  16. Published

    Development, characterisation, and deployment of the SNO+ liquid scintillator

    SNO+ Collaboration, Kormos, L. L., O'Keeffe, H. M. & Parnell, M. J., 10/05/2021, In: Journal of Instrumentation. 16, 24 p., P05009.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  17. Published

    Measurements of $\barν_μ$ and $\barν_μ + ν_μ$ charged-current cross-sections without detected pions nor protons on water and hydrocarbon at mean antineutrino energy of 0.86 GeV

    T2K Collaboration, Brailsford, D., Dealtry, T., Doyle, T. A., Finch, A. J., Knox, A., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 30/04/2021, In: Progress of Theoretical and Experimental Physics. 2021, 4, 28 p., 043C01.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  18. Published

    Measurement of the charged-current electron (anti-)neutrino inclusive cross-sections at the T2K off-axis near detector ND280

    T2K Collaboration, Brailsford, D., Dealtry, T., Finch, A. J., Knox, A., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 19/10/2020, In: Journal of High Energy Physics. 10, 43 p., 114.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  19. Published

    T2K ND280 Upgrade - Technical Design Report

    T2K Collaboration, 14/10/2020, In: arxiv.org. 196 p.

    Research output: Contribution to Journal/MagazineJournal article

  20. Published

    A search for $hep$ solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory

    SNO Collaboration, Kormos, L. L. & O'Keeffe, H. M., 29/09/2020, In: Physical Review D.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  21. Published

    The Hyper-Kamiokande Experiment - Snowmass LOI

    Hyper-Kamiokande Collaboration, 2/09/2020, In: arXiv. 6 p.

    Research output: Contribution to Journal/MagazineJournal article

  22. Published

    First measurement of the charged current ν ¯ μ double differential cross section on a water target without pions in the final state.

    T2K Collaboration, 21/07/2020, In: Physical Review D. 102, 1, 16 p., 012007.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  23. Published

    Measurement of neutron-proton capture in the SNO+ water phase

    SNO+ Collaboration, Kormos, L. L. & O'Keeffe, H. M., 10/07/2020, In: Physical Review C. 102, 1, 8 p., 014002.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  24. Published

    Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K

    T2K Collaboration, Dealtry, T., Finch, A. J., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N., Walsh, J. G. & Doyle, T., 16/06/2020, In: Physical Review D. 101, 11, 32 p., 112004.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  25. Published

    First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K

    T2K Collaboration, Brailsford, D., Dealtry, T., Doyle, T. A., Finch, A. J., Knox, A., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 1/06/2020, In: Physical Review D. 101, 11, 44 p., 112001.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  26. Published

    Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam

    T2K Collaboration, Brailsford, D., Dealtry, T., Doyle, T. A., Finch, A. J., Knox, A., Kormos, L. L., Lawe, M., Nowak, J., O'Keeffe, H. M., Ratoff, P. N. & Walsh, J. G., 21/04/2020, In: Physical review letters. 124, 8 p., 161802.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

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