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  • Event-by-event direction re...
    Allega, A.; Anderson, M. R.; Andringa, S.; Antunes, J.; Askins, M.; Bacon, A.; Baker, J.; Barros, N.; Bayes, R.; Beier, E. W.; Bezerra, T. S.; Bialek, A.; Biller, S. D.; Blucher, E.; Caden, E.; Callaghan, E. J.; Chen, M.; Cheng, S.; Cleveland, B.; Corning, J.; Cox, M. A.; Dehghani, R.; Deloye, J.; Depatie, M. M.; Di Lodovico, F.; Dittmer, J.; Dixon, K. H.; Falk, E.; Fatemighomi, N.; Ford, R.; Gaur, A.; González-Reina, O. I.; Gooding, D.; Grant, C.; Grove, J.; Hallin, A. L.; Heintzelman, W. J.; Hewitt, C.; Hreljac, B.; Hu, J.; Hunt-Stokes, R.; Hussain, S. M. A.; Inácio, A. S.; Jillings, C. J.; Kaluzienski, S.; Kaptanoglu, T.; Khaghani, P.; Khan, H.; Klein, J. R.; Kormos, L. L.; Krar, B.; Kraus, C.; Krauss, C. B.; Kroupová, T.; Lake, C.; Lebanowski, L.; Lee, J.; Lefebvre, C.; Lin, Y. H.; Lozza, V.; Luo, M.; Maio, A.; Manecki, S.; Maneira, J.; McCauley, N.; Mills, C.; Milton, G.; Morton-Blake, I.; Mubasher, M.; Molina Colina, A.; Morris, D.; Naugle, S.; O’Keeffe, H. M.; Page, J.; Paleshi, K.; Parker, W.; Ravi, P.; Reichold, A.; Rigan, M.; Rose, J.; Rosero, R.; Rumleskie, J.; Skensved, P.; Smiley, M.; Smith, J.; Svoboda, R.; Tam, B.; Tseng, J.; Vázquez-Jáuregui, E.; Virtue, C. J.; Wang, J.; Ward, M.; Wilson, J. R.; Wilson, J. D.; Wright, A.; Yang, S.; Ye, Z.; Yu, S.; Zuber, K.; Zummo, A.

    Physical review. D, 04/2024, Letnik: 109, Številka: 7
    Journal Article

    The direction of individual B 8 solar neutrinos has been reconstructed using the SNO + liquid scintillator detector. Prompt, directional Cherenkov light was separated from the slower, isotropic scintillation light using time information, and a maximum likelihood method was used to reconstruct the direction of individual scattered electrons. A clear directional signal was observed, correlated with the solar angle. The observation was aided by a period of low primary fluor concentration that resulted in a slower scintillator decay time. This is the first time that event-by-event direction reconstruction in high light-yield liquid scintillator has been demonstrated in a large-scale detector. Published by the American Physical Society 2024