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@ARTICLE{Agostini:906580,
      author       = {Agostini, M. and Altenmüller, K. and Appel, S. and
                      Atroshchenko, V. and Bagdasarian, Z. and Basilico, D. and
                      Bellini, G. and Benziger, J. and Biondi, R. and Bravo, D.
                      and Caccianiga, B. and Calaprice, F. and Caminata, A. and
                      Cavalcante, P. and Chepurnov, A. and D’Angelo, D. and
                      Davini, S. and Derbin, A. and Di Giacinto, A. and Di
                      Marcello, V. and Ding, X. F. and Di Ludovico, A. and Di
                      Noto, L. and Drachnev, I. and Formozov, A. and Franco, D.
                      and Galbiati, C. and Ghiano, C. and Giammarchi, M. and
                      Goretti, A. and Göttel, A. S. and Gromov, M. and Guffanti,
                      D. and Ianni, Aldo and Ianni, Andrea and Jany, A. and
                      Jeschke, D. and Kobychev, V. and Korga, G. and Kumaran, S.
                      and Laubenstein, M. and Litvinovich, E. and Lombardi, P. and
                      Lomskaya, I. and Ludhova, L. and Lukyanchenko, G. and
                      Lukyanchenko, L. and Machulin, I. and Martyn, J. and Meroni,
                      E. and Meyer, M. and Miramonti, L. and Misiaszek, M. and
                      Muratova, V. and Neumair, B. and Nieslony, M. and Nugmanov,
                      R. and Oberauer, L. and Orekhov, V. and Ortica, F. and
                      Pallavicini, M. and Papp, L. and Pelicci, L. and Penek, Ö.
                      and Pietrofaccia, L. and Pilipenko, N. and Pocar, A. and
                      Raikov, G. and Ranalli, M. T. and Ranucci, G. and Razeto, A.
                      and Re, A. and Redchuk, M. and Romani, A. and Rossi, N. and
                      Schönert, S. and Semenov, D. and Settanta, G. and
                      Skorokhvatov, M. and Singhal, A. and Smirnov, O. and
                      Sotnikov, A. and Suvorov, Y. and Tartaglia, R. and Testera,
                      G. and Thurn, J. and Unzhakov, E. and Vishneva, A. and
                      Vogelaar, R. B. and von Feilitzsch, F. and Wessel, A. and
                      Wojcik, M. and Wonsak, B. and Wurm, M. and Zavatarelli, S.
                      and Zuber, K. and Zuzel, G.},
      title        = {{C}orrelated and integrated directionality for sub-{M}e{V}
                      solar neutrinos in {B}orexino},
      journal      = {Physical review / D},
      volume       = {105},
      number       = {5},
      issn         = {2470-0010},
      address      = {Melville, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2022-01531},
      pages        = {052002},
      year         = {2022},
      abstract     = {Liquid scintillator detectors play a central role in the
                      detection of neutrinos from various sources. In particular,
                      it is the only technique used so far for the precision
                      spectroscopy of sub-MeV solar neutrinos, as demonstrated by
                      the Borexino experiment at the Gran Sasso National
                      Laboratory in Italy. The benefit of a high light yield, and
                      thus a low energy threshold and a good energy resolution,
                      comes at the cost of the directional information featured by
                      water Cherenkov detectors, measuring 8B solar neutrinos
                      above a few MeV. In this paper we provide the first
                      directionality measurement of sub-MeV solar neutrinos which
                      exploits the correlation between the first few detected
                      photons in each event and the known position of the Sun for
                      each event. This is also the first signature of
                      directionality in neutrinos elastically scattering off
                      electrons in a liquid scintillator target. This measurement
                      exploits the subdominant, fast Cherenkov light emission that
                      precedes the dominant yet slower scintillation light signal.
                      Through this measurement, we have also been able to extract
                      the rate of 7Be solar neutrinos in Borexino. The
                      demonstration of directional sensitivity in a traditional
                      liquid scintillator target paves the way for the possible
                      exploitation of the Cherenkov light signal in future
                      kton-scale experiments using liquid scintillator targets.
                      Directionality is important for background suppression as
                      well as the disentanglement of signals from various
                      sources.},
      cin          = {IKP-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IKP-2-20111104},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF4-612)},
      pid          = {G:(DE-HGF)POF4-612},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000767315300003},
      doi          = {10.1103/PhysRevD.105.052002},
      url          = {https://juser.fz-juelich.de/record/906580},
}